From c74b2abb4834eb27dbc61ff7727f548e5572e4c1 Mon Sep 17 00:00:00 2001
From: Winnie <3308978791@qq.com>
Date: Thu, 30 Jul 2026 19:03:00 +0800
Subject: [PATCH] =?UTF-8?q?=E9=87=8D=E6=9E=84=E6=A8=A1=E5=9E=8B=E5=B9=B3?=
 =?UTF-8?q?=E5=8F=B0=E5=89=8D=E5=90=8E=E7=AB=AF=E5=B9=B6=E7=A7=BB=E9=99=A4?=
 =?UTF-8?q?Redis=E4=BE=9D=E8=B5=96?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .dockerignore                                 |   13 +
 .env                                          |   28 +
 .env.example                                  |   28 +
 .idea/.gitignore                              |    8 +
 .idea/.name                                   |    1 +
 .idea/misc.xml                                |    6 +
 .idea/model-develop-refactored.iml            |    9 +
 .idea/modules.xml                             |    8 +
 .pnpm-store/v11/index.db                      |  Bin 0 -> 8192 bytes
 .../.dockerignore                             |    4 +
 .../.gitignore                                |    7 +
 .../README.md                                 |   22 +
 .../app/app.css                               |   11 +
 .../app/components/Icon.tsx                   |  183 +
 .../app/features/admin/AdminPages.tsx         |  256 ++
 .../features/platform/ModelPlatformApp.tsx    | 1965 +++++++++++
 .../app/features/schedules/SchedulePage.tsx   | 1951 +++++++++++
 .../app/root.tsx                              |   75 +
 .../app/routes.ts                             |    3 +
 .../app/routes/platform.tsx                   |   13 +
 .../app/services/api.ts                       |  853 +++++
 .../app/styles/admin.css                      |    1 +
 .../app/styles/dashboard.css                  |  185 +
 .../app/styles/platform.css                   | 1868 ++++++++++
 .../app/styles/schedule.css                   | 1176 +++++++
 .../package.json                              |   30 +
 .../pnpm-lock.yaml                            | 2327 +++++++++++++
 .../public/favicon.ico                        |  Bin 0 -> 15086 bytes
 .../react-router.config.ts                    |    7 +
 .../tsconfig.json                             |   26 +
 .../vite.config.ts                            |   21 +
 ARCHITECTURE.md                               |   39 +
 CLAUDE.md                                     |   64 +
 Makefile                                      |   22 +
 README.md                                     |   69 +
 REFACTOR_NOTES.md                             |   56 +
 alembic.ini                                   |   41 +
 backend/.gitignore                            |   10 +
 backend/.python-version                       |    1 +
 backend/Dockerfile                            |   13 +
 backend/README.md                             |    5 +
 backend/pyproject.toml                        |   23 +
 backend/src/backend/__init__.py               |    1 +
 backend/src/backend/admin.py                  |  218 ++
 backend/src/backend/dependencies.py           |   79 +
 backend/src/backend/file_locks.py             |  110 +
 backend/src/backend/jupyter.py                |   84 +
 backend/src/backend/main.py                   |  108 +
 backend/src/backend/resources.py              |  293 ++
 backend/src/backend/runtime_client.py         |  104 +
 backend/src/backend/schedule_client.py        |   43 +
 backend/src/backend/schedule_runs.py          |  348 ++
 backend/src/backend/schedule_schemas.py       |  214 ++
 backend/src/backend/schedules.py              | 1076 ++++++
 backend/src/backend/schemas.py                |   72 +
 backend/src/backend/scripts.py                |  925 +++++
 backend/src/backend/storage_api.py            |  681 ++++
 backend/src/backend/storage_client.py         |  116 +
 backend/src/backend/storage_schemas.py        |   79 +
 common/.gitignore                             |   10 +
 common/.python-version                        |    1 +
 common/README.md                              |    5 +
 common/alembic.ini                            |  149 +
 common/pyproject.toml                         |   17 +
 common/src/common/__init__.py                 |    1 +
 common/src/common/db/__init__.py              |   17 +
 common/src/common/db/base.py                  |   14 +
 common/src/common/db/models.py                |  878 +++++
 common/src/common/db/session.py               |   51 +
 common/src/common/eventing.py                 |   71 +
 common/src/common/ids.py                      |   17 +
 common/src/common/migrations/README           |    1 +
 common/src/common/migrations/env.py           |   78 +
 common/src/common/migrations/script.py.mako   |   28 +
 common/src/common/service_app.py              |   79 +
 common/src/common/storage/__init__.py         |    3 +
 common/src/common/storage/rustfs.py           |  126 +
 common/src/common/utils.py                    |    7 +
 contracts/README.md                           |   15 +
 contracts/__init__.py                         |    1 +
 contracts/demo-core-v1.md                     |   56 +
 contracts/events/README.md                    |   11 +
 contracts/events/event-envelope-v1.json       |   72 +
 contracts/events/job-node-execute-v1.json     |  125 +
 contracts/events/job-node-finished-v1.json    |  162 +
 .../events/schedule-run-requested-v1.json     |  255 ++
 contracts/locks/README.md                     |    3 +
 contracts/locks/file-edit-lock-v1.md          |   38 +
 contracts/openapi/README.md                   |   11 +
 contracts/openapi/demo-core-extension-v1.yaml | 1093 ++++++
 contracts/openapi/platform-api-v1.yaml        | 3080 +++++++++++++++++
 .../openapi/runtime-api-internal-v1.yaml      |  699 ++++
 .../openapi/storage-api-internal-v1.yaml      |  550 +++
 contracts/runtime/README.md                   |   26 +
 contracts/runtime/__init__.py                 |    1 +
 contracts/runtime/jupyter-proxy-v1.md         |   65 +
 contracts/runtime/runtime_adapter.py          |   70 +
 .../schedules/schedule-definition-api-v1.md   |  122 +
 .../111test1-checkpoint.ipynb                 |   67 +
 .../.ipynb_checkpoints/222test2-checkpoint.py |    9 +
 .../.ipynb_checkpoints/test2-checkpoint.py    |    9 +
 .../users/admin-zhang/111test1.ipynb          |   89 +
 .../model-dev/users/admin-zhang/222test2.py   |    9 +
 .../.ipynb_checkpoints/test-checkpoint.ipynb  |   43 +
 .../admin-zhang/notebooks/NotebookDemo.ipynb  |   67 +
 .../users/admin-zhang/notebooks/test.ipynb    |   59 +
 .../model-dev/users/admin-zhang/test2.py      |    9 +
 deploy/demo/NotebookDemo.ipynb                |   67 +
 docker-compose.yml                            |  224 ++
 frontend/.dockerignore                        |    4 +
 frontend/.gitignore                           |    7 +
 frontend/README.md                            |   22 +
 frontend/app/app.css                          |   11 +
 frontend/app/components/Icon.tsx              |  183 +
 frontend/app/features/admin/AdminPages.tsx    |  256 ++
 .../features/platform/ModelPlatformApp.tsx    | 1965 +++++++++++
 .../app/features/schedules/SchedulePage.tsx   | 1951 +++++++++++
 frontend/app/root.tsx                         |   75 +
 frontend/app/routes.ts                        |    3 +
 frontend/app/routes/platform.tsx              |   13 +
 frontend/app/services/api.ts                  |  853 +++++
 frontend/app/styles/admin.css                 |    1 +
 frontend/app/styles/dashboard.css             |  185 +
 frontend/app/styles/platform.css              | 1868 ++++++++++
 frontend/app/styles/schedule.css              | 1176 +++++++
 frontend/package.json                         |   30 +
 frontend/pnpm-lock.yaml                       | 2327 +++++++++++++
 frontend/public/favicon.ico                   |  Bin 0 -> 15086 bytes
 frontend/react-router.config.ts               |    7 +
 frontend/tsconfig.json                        |   26 +
 frontend/vite.config.ts                       |   21 +
 http/runtime.http                             |   39 +
 migrations/README.md                          |   28 +
 migrations/__init__.py                        |    1 +
 migrations/data/README.md                     |   69 +
 migrations/data/__init__.py                   |    1 +
 migrations/data/migrate_legacy_workspaces.py  |  413 +++
 migrations/data/migrate_system_json.py        |  504 +++
 migrations/env.py                             |  127 +
 migrations/script.py.mako                     |   28 +
 .../20260724_0001_v1_schema_baseline.py       |  652 ++++
 .../20260728_0002_demo_workspaces_users.py    |  112 +
 ...60728_0003_schedule_artifact_visibility.py |   41 +
 .../20260730_0004_remove_redis_lock_name.py   |   49 +
 migrations/versions/README.md                 |    7 +
 nginx/Dockerfile                              |   12 +
 nginx/default.conf.template                   |   83 +
 pyproject.toml                                |   13 +
 runtime/.gitignore                            |   10 +
 runtime/.python-version                       |    1 +
 runtime/Dockerfile                            |   12 +
 runtime/README.md                             |   11 +
 runtime/pyproject.toml                        |   20 +
 runtime/src/runtime/__init__.py               |    1 +
 runtime/src/runtime/main.py                   | 1026 ++++++
 runtime/src/runtime/providers/__init__.py     |    1 +
 .../src/runtime/providers/shared_jupyter.py   |  203 ++
 runtime/src/runtime/runtime_lifecycle.py      |  308 ++
 runtime/src/runtime/schemas.py                |   40 +
 schedule/.python-version                      |    1 +
 schedule/Dockerfile                           |   11 +
 schedule/README.md                            |    9 +
 schedule/pyproject.toml                       |   25 +
 schedule/src/schedule/__init__.py             |    1 +
 schedule/src/schedule/execution.py            |  202 ++
 schedule/src/schedule/main.py                 |   77 +
 schedule/src/schedule/notebook_runner.py      |   83 +
 schedule/src/schedule/service.py              |  922 +++++
 schedule/src/schedule/storage_client.py       |   41 +
 scripts/logs.ps1                              |    3 +
 scripts/start.ps1                             |   12 +
 scripts/stop.ps1                              |    3 +
 172 files changed, 40825 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 .env
 create mode 100644 .env.example
 create mode 100644 .idea/.gitignore
 create mode 100644 .idea/.name
 create mode 100644 .idea/misc.xml
 create mode 100644 .idea/model-develop-refactored.iml
 create mode 100644 .idea/modules.xml
 create mode 100644 .pnpm-store/v11/index.db
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/.dockerignore
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/.gitignore
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/README.md
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/app.css
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/components/Icon.tsx
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/admin/AdminPages.tsx
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/platform/ModelPlatformApp.tsx
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/schedules/SchedulePage.tsx
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/root.tsx
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/routes.ts
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/routes/platform.tsx
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/services/api.ts
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/admin.css
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/dashboard.css
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/platform.css
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/schedule.css
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/package.json
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/pnpm-lock.yaml
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/public/favicon.ico
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/react-router.config.ts
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/tsconfig.json
 create mode 100644 .pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/vite.config.ts
 create mode 100644 ARCHITECTURE.md
 create mode 100644 CLAUDE.md
 create mode 100644 Makefile
 create mode 100644 README.md
 create mode 100644 REFACTOR_NOTES.md
 create mode 100644 alembic.ini
 create mode 100644 backend/.gitignore
 create mode 100644 backend/.python-version
 create mode 100644 backend/Dockerfile
 create mode 100644 backend/README.md
 create mode 100644 backend/pyproject.toml
 create mode 100644 backend/src/backend/__init__.py
 create mode 100644 backend/src/backend/admin.py
 create mode 100644 backend/src/backend/dependencies.py
 create mode 100644 backend/src/backend/file_locks.py
 create mode 100644 backend/src/backend/jupyter.py
 create mode 100644 backend/src/backend/main.py
 create mode 100644 backend/src/backend/resources.py
 create mode 100644 backend/src/backend/runtime_client.py
 create mode 100644 backend/src/backend/schedule_client.py
 create mode 100644 backend/src/backend/schedule_runs.py
 create mode 100644 backend/src/backend/schedule_schemas.py
 create mode 100644 backend/src/backend/schedules.py
 create mode 100644 backend/src/backend/schemas.py
 create mode 100644 backend/src/backend/scripts.py
 create mode 100644 backend/src/backend/storage_api.py
 create mode 100644 backend/src/backend/storage_client.py
 create mode 100644 backend/src/backend/storage_schemas.py
 create mode 100644 common/.gitignore
 create mode 100644 common/.python-version
 create mode 100644 common/README.md
 create mode 100644 common/alembic.ini
 create mode 100644 common/pyproject.toml
 create mode 100644 common/src/common/__init__.py
 create mode 100644 common/src/common/db/__init__.py
 create mode 100644 common/src/common/db/base.py
 create mode 100644 common/src/common/db/models.py
 create mode 100644 common/src/common/db/session.py
 create mode 100644 common/src/common/eventing.py
 create mode 100644 common/src/common/ids.py
 create mode 100644 common/src/common/migrations/README
 create mode 100644 common/src/common/migrations/env.py
 create mode 100644 common/src/common/migrations/script.py.mako
 create mode 100644 common/src/common/service_app.py
 create mode 100644 common/src/common/storage/__init__.py
 create mode 100644 common/src/common/storage/rustfs.py
 create mode 100644 common/src/common/utils.py
 create mode 100644 contracts/README.md
 create mode 100644 contracts/__init__.py
 create mode 100644 contracts/demo-core-v1.md
 create mode 100644 contracts/events/README.md
 create mode 100644 contracts/events/event-envelope-v1.json
 create mode 100644 contracts/events/job-node-execute-v1.json
 create mode 100644 contracts/events/job-node-finished-v1.json
 create mode 100644 contracts/events/schedule-run-requested-v1.json
 create mode 100644 contracts/locks/README.md
 create mode 100644 contracts/locks/file-edit-lock-v1.md
 create mode 100644 contracts/openapi/README.md
 create mode 100644 contracts/openapi/demo-core-extension-v1.yaml
 create mode 100644 contracts/openapi/platform-api-v1.yaml
 create mode 100644 contracts/openapi/runtime-api-internal-v1.yaml
 create mode 100644 contracts/openapi/storage-api-internal-v1.yaml
 create mode 100644 contracts/runtime/README.md
 create mode 100644 contracts/runtime/__init__.py
 create mode 100644 contracts/runtime/jupyter-proxy-v1.md
 create mode 100644 contracts/runtime/runtime_adapter.py
 create mode 100644 contracts/schedules/schedule-definition-api-v1.md
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/111test1-checkpoint.ipynb
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/222test2-checkpoint.py
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/test2-checkpoint.py
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/111test1.ipynb
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/222test2.py
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/.ipynb_checkpoints/test-checkpoint.ipynb
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/NotebookDemo.ipynb
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/test.ipynb
 create mode 100644 deploy/data/workspaces/model-dev/users/admin-zhang/test2.py
 create mode 100644 deploy/demo/NotebookDemo.ipynb
 create mode 100644 docker-compose.yml
 create mode 100644 frontend/.dockerignore
 create mode 100644 frontend/.gitignore
 create mode 100644 frontend/README.md
 create mode 100644 frontend/app/app.css
 create mode 100644 frontend/app/components/Icon.tsx
 create mode 100644 frontend/app/features/admin/AdminPages.tsx
 create mode 100644 frontend/app/features/platform/ModelPlatformApp.tsx
 create mode 100644 frontend/app/features/schedules/SchedulePage.tsx
 create mode 100644 frontend/app/root.tsx
 create mode 100644 frontend/app/routes.ts
 create mode 100644 frontend/app/routes/platform.tsx
 create mode 100644 frontend/app/services/api.ts
 create mode 100644 frontend/app/styles/admin.css
 create mode 100644 frontend/app/styles/dashboard.css
 create mode 100644 frontend/app/styles/platform.css
 create mode 100644 frontend/app/styles/schedule.css
 create mode 100644 frontend/package.json
 create mode 100644 frontend/pnpm-lock.yaml
 create mode 100644 frontend/public/favicon.ico
 create mode 100644 frontend/react-router.config.ts
 create mode 100644 frontend/tsconfig.json
 create mode 100644 frontend/vite.config.ts
 create mode 100644 http/runtime.http
 create mode 100644 migrations/README.md
 create mode 100644 migrations/__init__.py
 create mode 100644 migrations/data/README.md
 create mode 100644 migrations/data/__init__.py
 create mode 100644 migrations/data/migrate_legacy_workspaces.py
 create mode 100644 migrations/data/migrate_system_json.py
 create mode 100644 migrations/env.py
 create mode 100644 migrations/script.py.mako
 create mode 100644 migrations/versions/20260724_0001_v1_schema_baseline.py
 create mode 100644 migrations/versions/20260728_0002_demo_workspaces_users.py
 create mode 100644 migrations/versions/20260728_0003_schedule_artifact_visibility.py
 create mode 100644 migrations/versions/20260730_0004_remove_redis_lock_name.py
 create mode 100644 migrations/versions/README.md
 create mode 100644 nginx/Dockerfile
 create mode 100644 nginx/default.conf.template
 create mode 100644 pyproject.toml
 create mode 100644 runtime/.gitignore
 create mode 100644 runtime/.python-version
 create mode 100644 runtime/Dockerfile
 create mode 100644 runtime/README.md
 create mode 100644 runtime/pyproject.toml
 create mode 100644 runtime/src/runtime/__init__.py
 create mode 100644 runtime/src/runtime/main.py
 create mode 100644 runtime/src/runtime/providers/__init__.py
 create mode 100644 runtime/src/runtime/providers/shared_jupyter.py
 create mode 100644 runtime/src/runtime/runtime_lifecycle.py
 create mode 100644 runtime/src/runtime/schemas.py
 create mode 100644 schedule/.python-version
 create mode 100644 schedule/Dockerfile
 create mode 100644 schedule/README.md
 create mode 100644 schedule/pyproject.toml
 create mode 100644 schedule/src/schedule/__init__.py
 create mode 100644 schedule/src/schedule/execution.py
 create mode 100644 schedule/src/schedule/main.py
 create mode 100644 schedule/src/schedule/notebook_runner.py
 create mode 100644 schedule/src/schedule/service.py
 create mode 100644 schedule/src/schedule/storage_client.py
 create mode 100644 scripts/logs.ps1
 create mode 100644 scripts/start.ps1
 create mode 100644 scripts/stop.ps1

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..e336878
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,13 @@
+.git
+.gitignore
+**/__pycache__
+**/*.py[cod]
+**/.pytest_cache
+**/.mypy_cache
+**/.ruff_cache
+**/.venv
+frontend/node_modules
+frontend/build
+frontend/.react-router
+deploy/data
+*.zip
diff --git a/.env b/.env
new file mode 100644
index 0000000..a238f3e
--- /dev/null
+++ b/.env
@@ -0,0 +1,28 @@
+COMPOSE_PROJECT_NAME=model-develop-new
+
+# Local development ports
+GATEWAY_PORT=28081
+MYSQL_PORT=23318
+RUSTFS_API_PORT=29010
+RUSTFS_CONSOLE_PORT=29011
+BACKEND_PORT=28010
+RUNTIME_PORT=28012
+SCHEDULE_PORT=28013
+
+# Jupyter
+JUPYTER_IMAGE=quay.io/jupyter/base-notebook:2025-12-31
+JUPYTER_TOKEN=ModelDevelop_Jupyter_Isolated_2026_A7K9
+
+# MySQL
+MYSQL_DATABASE=model_develop_isolated
+MYSQL_USER=model_develop_app
+MYSQL_PASSWORD=ModelDevelop_MySQL_App_2026_B8M4
+MYSQL_ROOT_PASSWORD=ModelDevelop_MySQL_Root_2026_C6R2
+
+# RustFS
+RUSTFS_IMAGE=rustfs/rustfs:latest
+RUSTFS_ACCESS_KEY=modeldevelopisolated
+RUSTFS_SECRET_KEY=ModelDevelop_RustFS_2026_D9P5
+
+# Internal service authentication
+INTERNAL_SERVICE_TOKEN=ModelDevelop_Internal_Service_2026_E4T8
\ No newline at end of file
diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..7439f6c
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,28 @@
+COMPOSE_PROJECT_NAME=model-platform-refactored
+
+# Local development ports
+GATEWAY_PORT=8081
+MYSQL_PORT=3308
+RUSTFS_API_PORT=9010
+RUSTFS_CONSOLE_PORT=9011
+BACKEND_PORT=8010
+RUNTIME_PORT=8012
+SCHEDULE_PORT=8013
+
+# Jupyter only exposes port 8888 inside the Compose network.
+JUPYTER_IMAGE=quay.io/jupyter/base-notebook:2025-12-31
+JUPYTER_TOKEN=ChangeMe_Jupyter_Internal_2026
+
+# MySQL 8 local development credentials
+MYSQL_DATABASE=model_platform
+MYSQL_USER=model_platform
+MYSQL_PASSWORD=ChangeMe_MySQL_App_2026
+MYSQL_ROOT_PASSWORD=ChangeMe_MySQL_Root_2026
+
+# RustFS local development image and credentials
+RUSTFS_IMAGE=rustfs/rustfs:latest
+RUSTFS_ACCESS_KEY=modelplatform
+RUSTFS_SECRET_KEY=ChangeMe_RustFS_2026
+
+# Internal service authentication; replace in every non-local environment.
+INTERNAL_SERVICE_TOKEN=ChangeMe_Internal_Service_2026
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..35410ca
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/.name b/.idea/.name
new file mode 100644
index 0000000..2eea525
--- /dev/null
+++ b/.idea/.name
@@ -0,0 +1 @@
+.env
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..862d09b
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_20" default="true" project-jdk-name="20" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/model-develop-refactored.iml b/.idea/model-develop-refactored.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/model-develop-refactored.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..4cd2323
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/model-develop-refactored.iml" filepath="$PROJECT_DIR$/.idea/model-develop-refactored.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.pnpm-store/v11/index.db b/.pnpm-store/v11/index.db
new file mode 100644
index 0000000000000000000000000000000000000000..044636a65ff67410fad601f0c39978108fefcea0
GIT binary patch
literal 8192
zcmeIuzpBD86bA4#2p0s=&GDX11#$5OY&BppTCFMSqD0LV@%|C%po4=C;0rt5R!Xsx
zd-*<+oFpepe$$EEhlalXPCq)NHmfksS%-)*#*-P9XRK%~B>T9;=Xc?(b$^tiS5|q+
zqJcmF0uX=z1Rwwb2tWV=5P$##awu^7v_7h}nsvK|di`yVdUMb_v)cb|%{g=6U0>Kr
zkg^>qDAS^Pk<uK@g_M{p8vE|h_7^k|i{?vzt3yqW^c)&_ibjEyX|q8ySM|L>k?+mi
kUUFZI)hjuq$Cn@g0SG_<0uX=z1Rwwb2tWV=5J(070rxR8{{R30

literal 0
HcmV?d00001

diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/.dockerignore b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/.dockerignore
new file mode 100644
index 0000000..9b8d514
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/.dockerignore
@@ -0,0 +1,4 @@
+.react-router
+build
+node_modules
+README.md
\ No newline at end of file
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/.gitignore b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/.gitignore
new file mode 100644
index 0000000..039ee62
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/.gitignore
@@ -0,0 +1,7 @@
+.DS_Store
+.env
+/node_modules/
+
+# React Router
+/.react-router/
+/build/
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/README.md b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/README.md
new file mode 100644
index 0000000..a3844c1
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/README.md
@@ -0,0 +1,22 @@
+# Frontend
+
+React Router SPA，已将原前端按功能拆分到 `app/`：
+
+```text
+app/components/          通用图标组件
+app/features/platform/   主框架、脚本工作区和 Jupyter 编辑
+app/features/schedules/  DAG 调度页面
+app/features/admin/      工作台与系统管理
+app/routes/              React Router 路由入口
+app/services/            API 请求、DTO 和演示上下文
+app/styles/              分功能样式
+```
+
+本地开发：
+
+```bash
+pnpm install
+pnpm dev
+```
+
+生产构建由根目录 `nginx/Dockerfile` 完成，构建结果复制到 Nginx 静态目录。
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/app.css b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/app.css
new file mode 100644
index 0000000..928fa83
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/app.css
@@ -0,0 +1,11 @@
+:root {
+  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
+  color: #1f354b;
+  background: #f3f6f9;
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+}
+
+* { box-sizing: border-box; }
+html, body { margin: 0; min-width: 1024px; min-height: 100%; }
+button, input, select, textarea { font: inherit; }
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/components/Icon.tsx b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/components/Icon.tsx
new file mode 100644
index 0000000..ec50beb
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/components/Icon.tsx
@@ -0,0 +1,183 @@
+type IconName =
+  | "brand"
+  | "home"
+  | "script"
+  | "schedule"
+  | "experiment"
+  | "database"
+  | "settings"
+  | "chevron"
+  | "search"
+  | "plus"
+  | "upload"
+  | "folder"
+  | "notebook"
+  | "python"
+  | "refresh"
+  | "close"
+  | "check"
+  | "info"
+  | "workspace"
+  | "menu"
+  | "external"
+  | "release"
+  | "play";
+
+type IconProps = {
+  name: IconName;
+  size?: number;
+  strokeWidth?: number;
+};
+
+export default function Icon({
+  name,
+  size = 18,
+  strokeWidth = 1.8,
+}: IconProps) {
+  const common = {
+    width: size,
+    height: size,
+    viewBox: "0 0 24 24",
+    fill: "none",
+    xmlns: "http://www.w3.org/2000/svg",
+    "aria-hidden": true,
+  };
+
+  if (name === "brand") {
+    return (
+      <svg {...common} viewBox="0 0 32 32">
+        <path
+          d="M16 3.5 27 9.8v12.4L16 28.5 5 22.2V9.8L16 3.5Z"
+          fill="currentColor"
+          opacity=".2"
+        />
+        <path
+          d="M16 7.7 23.4 12v8L16 24.3 8.6 20v-8L16 7.7Z"
+          fill="currentColor"
+        />
+        <circle cx="16" cy="16" r="3.3" fill="white" />
+      </svg>
+    );
+  }
+
+  const paths: Record<Exclude<IconName, "brand">, React.ReactNode> = {
+    home: (
+      <>
+        <path d="m3.5 11 8.5-7 8.5 7" />
+        <path d="M5.5 10v10h13V10M9.5 20v-6h5v6" />
+      </>
+    ),
+    script: (
+      <>
+        <rect x="5" y="3.5" width="14" height="17" rx="2" />
+        <path d="M8.5 8h7M8.5 12h7M8.5 16h4.5" />
+      </>
+    ),
+    schedule: (
+      <>
+        <circle cx="12" cy="12" r="8.5" />
+        <path d="M12 7.5V12l3.2 2" />
+      </>
+    ),
+    experiment: (
+      <>
+        <path d="M9 3.5h6M10 3.5v5l-5.2 9a2 2 0 0 0 1.7 3h11a2 2 0 0 0 1.7-3L14 8.5v-5" />
+        <path d="M7.3 15h9.4" />
+      </>
+    ),
+    database: (
+      <>
+        <ellipse cx="12" cy="5.5" rx="7.5" ry="3" />
+        <path d="M4.5 5.5v6c0 1.7 3.4 3 7.5 3s7.5-1.3 7.5-3v-6" />
+        <path d="M4.5 11.5v6c0 1.7 3.4 3 7.5 3s7.5-1.3 7.5-3v-6" />
+      </>
+    ),
+    settings: (
+      <>
+        <circle cx="12" cy="12" r="3" />
+        <path d="M19.4 15a1.7 1.7 0 0 0 .3 1.9l.1.1-2.8 2.8-.1-.1a1.7 1.7 0 0 0-1.9-.3 1.7 1.7 0 0 0-1 1.6v.2h-4V21a1.7 1.7 0 0 0-1-1.6 1.7 1.7 0 0 0-1.9.3l-.1.1L4.2 17l.1-.1a1.7 1.7 0 0 0 .3-1.9A1.7 1.7 0 0 0 3 14H2.8v-4H3a1.7 1.7 0 0 0 1.6-1 1.7 1.7 0 0 0-.3-1.9L4.2 7 7 4.2l.1.1a1.7 1.7 0 0 0 1.9.3A1.7 1.7 0 0 0 10 3v-.2h4V3a1.7 1.7 0 0 0 1 1.6 1.7 1.7 0 0 0 1.9-.3l.1-.1L19.8 7l-.1.1a1.7 1.7 0 0 0-.3 1.9 1.7 1.7 0 0 0 1.6 1h.2v4H21a1.7 1.7 0 0 0-1.6 1Z" />
+      </>
+    ),
+    chevron: <path d="m9 7 5 5-5 5" />,
+    search: (
+      <>
+        <circle cx="10.5" cy="10.5" r="6.5" />
+        <path d="m15.5 15.5 4 4" />
+      </>
+    ),
+    plus: <path d="M12 5v14M5 12h14" />,
+    upload: (
+      <>
+        <path d="M12 16V4m0 0L7.5 8.5M12 4l4.5 4.5" />
+        <path d="M4 15.5V20h16v-4.5" />
+      </>
+    ),
+    folder: (
+      <path d="M3.5 6.5h6l2 2H20.5v10.5a1.5 1.5 0 0 1-1.5 1.5H5a1.5 1.5 0 0 1-1.5-1.5V6.5Z" />
+    ),
+    notebook: (
+      <>
+        <rect x="5" y="3.5" width="14" height="17" rx="2" />
+        <path d="M8.5 3.5v17M11.5 8h4M11.5 12h4M11.5 16h2.5" />
+      </>
+    ),
+    python: (
+      <>
+        <path d="M8 4.5h5.5a2.5 2.5 0 0 1 2.5 2.5v3H8a3 3 0 0 0-3 3v2" />
+        <path d="M16 19.5h-5.5A2.5 2.5 0 0 1 8 17v-3h8a3 3 0 0 0 3-3V9" />
+        <circle cx="11" cy="7" r=".8" fill="currentColor" stroke="none" />
+        <circle cx="13" cy="17" r=".8" fill="currentColor" stroke="none" />
+      </>
+    ),
+    refresh: (
+      <>
+        <path d="M19 8V4l-1.7 1.7A8 8 0 1 0 20 12" />
+        <path d="M19 4h-4" />
+      </>
+    ),
+    close: <path d="m6 6 12 12M18 6 6 18" />,
+    check: <path d="m5 12.5 4 4L19 7" />,
+    info: (
+      <>
+        <circle cx="12" cy="12" r="9" />
+        <path d="M12 11v5M12 8h.01" />
+      </>
+    ),
+    workspace: (
+      <>
+        <rect x="3.5" y="5" width="17" height="14" rx="2" />
+        <path d="M8 5V3.5h8V5M8 11h8M12 8v6" />
+      </>
+    ),
+    menu: (
+      <>
+        <path d="M4 6h16M4 12h16M4 18h16" />
+      </>
+    ),
+    external: (
+      <>
+        <path d="M14 5h5v5M19 5l-8 8" />
+        <path d="M18 13v6H5V6h6" />
+      </>
+    ),
+    release: (
+      <>
+        <path d="M12 3.5v11M7.5 8 12 3.5 16.5 8" />
+        <path d="M5 12.5v7h14v-7" />
+      </>
+    ),
+    play: <path d="m8 5 11 7-11 7V5Z" />,
+  };
+
+  return (
+    <svg
+      {...common}
+      stroke="currentColor"
+      strokeWidth={strokeWidth}
+      strokeLinecap="round"
+      strokeLinejoin="round"
+    >
+      {paths[name]}
+    </svg>
+  );
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/admin/AdminPages.tsx b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/admin/AdminPages.tsx
new file mode 100644
index 0000000..1f7ad1d
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/admin/AdminPages.tsx
@@ -0,0 +1,256 @@
+import { FormEvent, useEffect, useState } from "react";
+
+import {
+  ApiRequestError,
+  createEmployee,
+  deleteEmployee,
+  demoContext,
+  listEmployees,
+  updateEmployee,
+  type Employee,
+} from "../../services/api";
+import Icon from "../../components/Icon";
+import "../../styles/admin.css";
+import "../../styles/dashboard.css";
+
+
+type Notice = {
+  tone: "success" | "error" | "info";
+  message: string;
+};
+
+export function DashboardPage({
+  scriptCount,
+  online,
+  onNavigate,
+}: {
+  scriptCount: number;
+  online: boolean;
+  onNavigate: (page: "scripts" | "schedules" | "system") => void;
+}) {
+  return (
+    <section className="dashboard-page">
+      <div className="dashboard-hero">
+        <div>
+          <span>MODEL DEVELOPMENT PLATFORM</span>
+          <h2>下午好，{demoContext.userName}</h2>
+          <p>当前位于 {demoContext.workspaceName}，可以继续构建脚本或配置调度。</p>
+        </div>
+        <span className="dashboard-hero__badge">{online ? "服务正常" : "服务连接中"}</span>
+      </div>
+      <div className="dashboard-metrics">
+        <article><Icon name="script" /><span><b>{scriptCount}</b><small>工作副本</small></span></article>
+        <article><Icon name="workspace" /><span><b>2</b><small>Workspace</small></span></article>
+        <article><Icon name="settings" /><span><b>4</b><small>平台员工</small></span></article>
+        <article><Icon name="check" /><span><b>{online ? "正常" : "检查中"}</b><small>平台状态</small></span></article>
+      </div>
+      <div className="dashboard-actions">
+        <button type="button" onClick={() => onNavigate("scripts")}><Icon name="script" />构建脚本</button>
+        <button type="button" onClick={() => onNavigate("schedules")}><Icon name="schedule" />调度配置</button>
+        <button type="button" onClick={() => onNavigate("system")}><Icon name="settings" />员工管理</button>
+      </div>
+      <div className="dashboard-grid">
+        <section className="dashboard-panel dashboard-panel--trend">
+          <header><div><span>运行趋势</span><h3>近 7 天调度执行</h3></div><b>成功率 92.6%</b></header>
+          <div className="trend-chart">
+            {[38, 55, 44, 73, 61, 86, 78].map((value, index) => (
+              <div className="trend-column" key={index}>
+                <span className="trend-column__value">{Math.round(value / 7)}</span>
+                <i style={{ height: `${value}%` }} />
+                <small>{["周一", "周二", "周三", "周四", "周五", "周六", "今天"][index]}</small>
+              </div>
+            ))}
+          </div>
+          <footer><span><i className="legend-dot is-success" />成功 75</span><span><i className="legend-dot is-failed" />失败 6</span></footer>
+        </section>
+        <section className="dashboard-panel dashboard-panel--donut">
+          <header><div><span>脚本资产</span><h3>类型分布</h3></div></header>
+          <div className="donut-layout">
+            <div className="donut-chart"><span><b>{scriptCount}</b><small>全部脚本</small></span></div>
+            <div className="donut-legend">
+              <span><i className="legend-dot is-notebook" /><b>Notebook</b><small>{Math.max(1, Math.round(scriptCount * .67))} 个 · 67%</small></span>
+              <span><i className="legend-dot is-python" /><b>Python</b><small>{Math.max(0, scriptCount - Math.round(scriptCount * .67))} 个 · 33%</small></span>
+              <span><i className="legend-dot is-version" /><b>稳定版本</b><small>3 个已发布</small></span>
+            </div>
+          </div>
+        </section>
+        <section className="dashboard-panel dashboard-panel--activity">
+          <header><div><span>ACTIVITY</span><h3>最近平台活动</h3></div><button type="button">查看全部</button></header>
+          <div className="activity-table">
+            <div className="activity-table__head"><span>操作内容</span><span>执行人</span><span>状态</span><span>时间</span></div>
+            {[
+              ["数据探索.ipynb 发布稳定版本 v3.0", "张三", "成功", "16:42"],
+              ["每日模型训练流程完成调度运行", "Scheduler", "成功", "15:25"],
+              ["批量预测.py 更新工作副本", "王五", "已同步", "14:18"],
+              ["风险验证流程完成 DAG 校验", "李四", "成功", "11:06"],
+            ].map((row) => (
+              <div className="activity-row" key={row[0]}>
+                <span><i className="activity-icon"><Icon name="check" size={13} /></i>{row[0]}</span>
+                <span>{row[1]}</span><span><b>{row[2]}</b></span><span>{row[3]}</span>
+              </div>
+            ))}
+          </div>
+        </section>
+      </div>
+    </section>
+  );
+}
+
+
+const EMPTY_FORM = {
+  username: "",
+  display_name: "",
+  email: "",
+  role_code: "developer" as "admin" | "developer",
+  status: "active" as "active" | "disabled" | "locked",
+};
+
+export function SystemAdminPage({
+  onNotify,
+  onConnectionChange,
+}: {
+  onNotify: (notice: Notice) => void;
+  onConnectionChange: (online: boolean) => void;
+}) {
+  const [employees, setEmployees] = useState<Employee[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [saving, setSaving] = useState(false);
+  const [editing, setEditing] = useState<Employee | null>(null);
+  const [dialogOpen, setDialogOpen] = useState(false);
+  const [form, setForm] = useState(EMPTY_FORM);
+  const canManage = demoContext.roleCode === "admin";
+
+  const load = async (): Promise<void> => {
+    setLoading(true);
+    try {
+      setEmployees(await listEmployees());
+      onConnectionChange(true);
+    } catch (error) {
+      onConnectionChange(false);
+      onNotify({
+        tone: "error",
+        message: error instanceof Error ? error.message : "员工列表加载失败",
+      });
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  useEffect(() => {
+    void load();
+  }, []);
+
+  const openCreate = (): void => {
+    setEditing(null);
+    setForm(EMPTY_FORM);
+    setDialogOpen(true);
+  };
+
+  const openEdit = (employee: Employee): void => {
+    setEditing(employee);
+    setForm({
+      username: employee.username,
+      display_name: employee.display_name,
+      email: employee.email ?? "",
+      role_code: employee.role_code,
+      status: employee.status,
+    });
+    setDialogOpen(true);
+  };
+
+  const submit = async (event: FormEvent): Promise<void> => {
+    event.preventDefault();
+    if (!form.display_name.trim() || (!editing && !form.username.trim())) return;
+    setSaving(true);
+    try {
+      if (editing) {
+        const updated = await updateEmployee(editing.user_id, {
+          display_name: form.display_name.trim(),
+          email: form.email.trim() || null,
+          role_code: form.role_code,
+          status: form.status,
+        });
+        setEmployees((current) => current.map(
+          (item) => item.user_id === updated.user_id ? updated : item,
+        ));
+      } else {
+        const created = await createEmployee({
+          username: form.username.trim(),
+          display_name: form.display_name.trim(),
+          email: form.email.trim() || null,
+          role_code: form.role_code,
+        });
+        setEmployees((current) => [...current, created]);
+      }
+      setDialogOpen(false);
+      onNotify({ tone: "success", message: editing ? "员工信息已更新" : "员工已添加" });
+    } catch (error) {
+      onNotify({
+        tone: "error",
+        message: error instanceof ApiRequestError ? error.message : "保存员工失败",
+      });
+    } finally {
+      setSaving(false);
+    }
+  };
+
+  const remove = async (employee: Employee): Promise<void> => {
+    if (!window.confirm(`确定从当前 Workspace 删除员工“${employee.display_name}”吗？`)) return;
+    try {
+      await deleteEmployee(employee.user_id);
+      setEmployees((current) => current.filter((item) => item.user_id !== employee.user_id));
+      onNotify({ tone: "success", message: "员工已删除" });
+    } catch (error) {
+      onNotify({
+        tone: "error",
+        message: error instanceof Error ? error.message : "删除员工失败",
+      });
+    }
+  };
+
+  return (
+    <section className="admin-page">
+      <header className="admin-page__header">
+        <div><span>系统管理</span><h2>员工管理</h2><p>{demoContext.workspaceName} · {employees.length} 名员工</p></div>
+        <button className="primary-button" type="button" disabled={!canManage} onClick={openCreate}>
+          <Icon name="plus" size={15} />添加员工
+        </button>
+      </header>
+      {!canManage && <div className="admin-readonly">当前为开发人员，只能查看员工列表。</div>}
+      <div className="employee-table">
+        <div className="employee-table__head"><span>员工</span><span>账号</span><span>角色</span><span>状态</span><span>操作</span></div>
+        {loading ? <p className="admin-empty">正在加载员工…</p> : employees.map((employee) => {
+          const isProtectedAdmin = employee.role_code === "admin";
+          return (
+            <div className="employee-row" key={employee.user_id}>
+              <span className="employee-name"><b className="avatar">{employee.display_name.slice(0, 1)}</b><span><strong>{employee.display_name}</strong><small>{employee.email ?? "未设置邮箱"}</small></span></span>
+              <code>{employee.username}</code>
+              <span className={`role-pill is-${employee.role_code}`}>{employee.role_name}</span>
+              <span className={`status-pill is-${employee.status}`}>{employee.status === "active" ? "正常" : employee.status === "disabled" ? "已停用" : "已锁定"}</span>
+              <span className="employee-actions">
+                <button type="button" disabled={!canManage} onClick={() => openEdit(employee)}>编辑</button>
+                <button type="button" className="is-danger" disabled={!canManage || isProtectedAdmin} title={isProtectedAdmin ? "管理员账号不能删除" : "删除"} onClick={() => void remove(employee)}>删除</button>
+              </span>
+            </div>
+          );
+        })}
+      </div>
+
+      {dialogOpen && (
+        <div className="modal-backdrop">
+          <section className="modal modal--compact" role="dialog" aria-modal="true">
+            <div className="modal__header"><div><span className="modal__eyebrow">EMPLOYEE</span><h2>{editing ? "编辑员工" : "添加员工"}</h2></div><button className="icon-button" type="button" onClick={() => setDialogOpen(false)}><Icon name="close" /></button></div>
+            <form onSubmit={(event) => void submit(event)}>
+              <label className="form-field"><span>姓名</span><input autoFocus value={form.display_name} onChange={(event) => setForm({ ...form, display_name: event.target.value })} /></label>
+              <label className="form-field"><span>登录账号</span><input disabled={Boolean(editing)} value={form.username} onChange={(event) => setForm({ ...form, username: event.target.value })} /></label>
+              <label className="form-field"><span>邮箱</span><input type="email" value={form.email} onChange={(event) => setForm({ ...form, email: event.target.value })} /></label>
+              <label className="form-field"><span>角色</span><select value={form.role_code} onChange={(event) => setForm({ ...form, role_code: event.target.value as "admin" | "developer" })}><option value="developer">开发人员</option><option value="admin">管理员</option></select></label>
+              {editing && <label className="form-field"><span>状态</span><select value={form.status} onChange={(event) => setForm({ ...form, status: event.target.value as typeof form.status })}><option value="active">正常</option><option value="disabled">停用</option><option value="locked">锁定</option></select></label>}
+              <div className="modal__footer"><button className="secondary-button" type="button" onClick={() => setDialogOpen(false)}>取消</button><button className="primary-button" type="submit" disabled={saving}>{saving ? "保存中…" : "保存"}</button></div>
+            </form>
+          </section>
+        </div>
+      )}
+    </section>
+  );
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/platform/ModelPlatformApp.tsx b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/platform/ModelPlatformApp.tsx
new file mode 100644
index 0000000..73a3b9c
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/platform/ModelPlatformApp.tsx
@@ -0,0 +1,1965 @@
+import {
+  type ChangeEvent,
+  FormEvent,
+  type MouseEvent as ReactMouseEvent,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from "react";
+import { useLocation, useNavigate } from "react-router";
+
+import {
+  acquireFileLock,
+  createWorkspaceDirectory,
+  createScript,
+  createJupyterAccessTicket,
+  deleteScript,
+  deleteWorkspaceDirectory,
+  demoContext,
+  demoUsers,
+  demoWorkspaces,
+  heartbeatFileLock,
+  listScripts,
+  listScriptVersions,
+  listWorkspaceDirectories,
+  publishScriptVersion,
+  releaseFileLock,
+  releaseFileLockOnUnload,
+  setDemoContext,
+  uploadScript,
+  type ActiveEditSession,
+  type ScriptItem,
+  type ScriptType,
+  type StableVersion,
+  type Visibility,
+  type WorkspaceDirectory,
+} from "../../services/api";
+import Icon from "../../components/Icon";
+import SchedulePage from "../schedules/SchedulePage";
+import { DashboardPage, SystemAdminPage } from "../admin/AdminPages";
+import "../../styles/platform.css";
+
+
+type NewScriptForm = {
+  name: string;
+  scriptType: ScriptType;
+  visibility: Visibility;
+  parentPath: string;
+};
+
+type ContextMenuState = {
+  x: number;
+  y: number;
+  kind: "root" | "directory" | "file";
+  path: string;
+  script?: ScriptItem;
+};
+
+type ToastState = {
+  tone: "success" | "error" | "info";
+  message: string;
+};
+
+const navigation = [
+  { label: "工作台", icon: "home" as const, page: "home" as const },
+  { label: "构建脚本", icon: "script" as const, page: "scripts" as const },
+  { label: "调度配置", icon: "schedule" as const, page: "schedules" as const },
+  { label: "系统管理", icon: "settings" as const, page: "system" as const },
+];
+
+type ActivePage = "home" | "scripts" | "schedules" | "system";
+
+function pageFromPath(pathname: string): ActivePage {
+  const page = pathname.replace(/^\/+|\/+$/g, "");
+  return ["scripts", "schedules", "system"].includes(page)
+    ? page as ActivePage
+    : "home";
+}
+
+function pathForPage(page: ActivePage): string {
+  return page === "home" ? "/workbench" : `/${page}`;
+}
+
+const initialForm: NewScriptForm = {
+  name: "",
+  scriptType: "notebook",
+  visibility: "workspace",
+  parentPath: "",
+};
+
+function formatTime(value: string) {
+  return new Intl.DateTimeFormat("zh-CN", {
+    month: "2-digit",
+    day: "2-digit",
+    hour: "2-digit",
+    minute: "2-digit",
+    hour12: false,
+  }).format(new Date(value));
+}
+
+function formatBytes(value: number) {
+  if (value < 1024) return `${value} B`;
+  return `${(value / 1024).toFixed(1)} KB`;
+}
+
+function shortHash(value: string) {
+  return value ? `${value.slice(0, 8)}…${value.slice(-6)}` : "—";
+}
+
+function scriptIcon(item: ScriptItem) {
+  return item.script_type === "notebook" ? "notebook" : "python";
+}
+
+function ownedScriptPath(item: ScriptItem) {
+  return item.relative_path.replaceAll("\\", "/").split("/").slice(2).join("/");
+}
+
+function parentOf(path: string) {
+  const parts = path.split("/");
+  parts.pop();
+  return parts.join("/");
+}
+
+function inferredDirectories(items: ScriptItem[]): WorkspaceDirectory[] {
+  const result = new Map<string, WorkspaceDirectory>();
+  for (const item of items) {
+    const parts = parentOf(ownedScriptPath(item)).split("/").filter(Boolean);
+    let parentPath = "";
+    for (const name of parts) {
+      const path = parentPath ? `${parentPath}/${name}` : name;
+      result.set(path, { path, name, parent_path: parentPath });
+      parentPath = path;
+    }
+  }
+  return [...result.values()];
+}
+
+function mergeDirectories(
+  left: WorkspaceDirectory[],
+  right: WorkspaceDirectory[],
+): WorkspaceDirectory[] {
+  return [...new Map(
+    [...left, ...right].map((item) => [item.path, item]),
+  ).values()];
+}
+
+function confineJupyterFrame(frame: HTMLIFrameElement): void {
+  try {
+    const document = frame.contentDocument;
+    if (!document?.documentElement) return;
+    const keepInside = (): void => {
+      document.querySelectorAll<HTMLElement>("button,[role='button']").forEach(
+        (element) => {
+          const label = `${element.getAttribute("aria-label") ?? ""} ${
+            element.getAttribute("title") ?? ""
+          } ${element.textContent ?? ""}`.trim();
+          if (/^open in\b/i.test(label) || /\bopen in\.\.\./i.test(label)) {
+            element.style.setProperty("display", "none", "important");
+          }
+        },
+      );
+      document.querySelectorAll<HTMLAnchorElement>("a[target]").forEach((link) => {
+        if (["_blank", "_top", "_parent"].includes(link.target)) {
+          link.target = "_self";
+        }
+      });
+    };
+    keepInside();
+    new MutationObserver(keepInside).observe(document.documentElement, {
+      childList: true,
+      subtree: true,
+    });
+    document.addEventListener("click", (event) => {
+      const target = event.target as HTMLElement | null;
+      const link = target?.closest?.("a") as HTMLAnchorElement | null;
+      if (link && ["_blank", "_top", "_parent"].includes(link.target)) {
+        link.target = "_self";
+      }
+    }, true);
+  } catch {
+    // The iframe remains sandboxed even if its document is not yet accessible.
+  }
+}
+
+export default function ModelPlatformApp() {
+  const location = useLocation();
+  const navigate = useNavigate();
+  const activePage = pageFromPath(location.pathname);
+  const [scripts, setScripts] = useState<ScriptItem[]>([]);
+  const [directories, setDirectories] = useState<WorkspaceDirectory[]>([]);
+  const [selectedId, setSelectedId] = useState<string | null>(null);
+  const [keyword, setKeyword] = useState("");
+  const [loading, setLoading] = useState(true);
+  const [refreshing, setRefreshing] = useState(false);
+  const [apiOnline, setApiOnline] = useState(false);
+  const [createOpen, setCreateOpen] = useState(false);
+  const [creating, setCreating] = useState(false);
+  const [form, setForm] = useState<NewScriptForm>(initialForm);
+  const [folderDialog, setFolderDialog] = useState<{
+    open: boolean;
+    parentPath: string;
+    name: string;
+    busy: boolean;
+  }>({ open: false, parentPath: "", name: "", busy: false });
+  const [contextMenu, setContextMenu] = useState<ContextMenuState | null>(null);
+  const [workspaceMenuOpen, setWorkspaceMenuOpen] = useState(false);
+  const [userMenuOpen, setUserMenuOpen] = useState(false);
+  const [uploadParentPath, setUploadParentPath] = useState("");
+  const [uploading, setUploading] = useState(false);
+  const uploadInputRef = useRef<HTMLInputElement | null>(null);
+  const [toast, setToast] = useState<ToastState | null>(null);
+  const [editSession, setEditSession] = useState<ActiveEditSession | null>(null);
+  const editSessionRef = useRef<ActiveEditSession | null>(null);
+  const selectedIdRef = useRef<string | null>(null);
+  const editorOpenRequestRef = useRef(0);
+  const editorOpeningRef = useRef(false);
+  const [embeddedJupyterUrl, setEmbeddedJupyterUrl] =
+    useState<string | null>(null);
+  const [editBusy, setEditBusy] = useState(false);
+  const [editorOpenError, setEditorOpenError] = useState<{
+    scriptId: string;
+    message: string;
+  } | null>(null);
+  const [versions, setVersions] = useState<StableVersion[]>([]);
+  const [versionsLoading, setVersionsLoading] = useState(false);
+  const [publishTarget, setPublishTarget] = useState<ScriptItem | null>(null);
+  const [releaseNote, setReleaseNote] = useState("");
+  const [publishVisibility, setPublishVisibility] =
+    useState<Visibility>("workspace");
+  const [publishing, setPublishing] = useState(false);
+  const [publishedVersion, setPublishedVersion] =
+    useState<StableVersion | null>(null);
+
+  const load = async (silent = false) => {
+    if (!silent) setLoading(true);
+    setRefreshing(silent);
+    try {
+      const [items, folderItems] = await Promise.all([
+        listScripts(),
+        listWorkspaceDirectories(),
+      ]);
+      setScripts(items);
+      setDirectories(folderItems);
+      setApiOnline(true);
+      setSelectedId((current) => {
+        if (current && items.some((item) => item.script_id === current)) {
+          selectedIdRef.current = current;
+          return current;
+        }
+        const nextSelectedId = (
+          items.find((item) => item.script_type === "notebook")?.script_id
+          ?? items[0]?.script_id
+          ?? null
+        );
+        selectedIdRef.current = nextSelectedId;
+        return nextSelectedId;
+      });
+    } catch (error) {
+      setApiOnline(false);
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "脚本列表加载失败",
+      });
+    } finally {
+      setLoading(false);
+      setRefreshing(false);
+    }
+  };
+
+  useEffect(() => {
+    void load();
+  }, []);
+
+  useEffect(() => {
+    if (!toast) return;
+    const timer = window.setTimeout(() => setToast(null), 3200);
+    return () => window.clearTimeout(timer);
+  }, [toast]);
+
+  useEffect(() => {
+    if (!contextMenu) return;
+    const close = () => setContextMenu(null);
+    const closeOnEscape = (event: KeyboardEvent) => {
+      if (event.key === "Escape") close();
+    };
+    window.addEventListener("pointerdown", close);
+    window.addEventListener("blur", close);
+    window.addEventListener("resize", close);
+    window.addEventListener("scroll", close, true);
+    window.addEventListener("keydown", closeOnEscape);
+    return () => {
+      window.removeEventListener("pointerdown", close);
+      window.removeEventListener("blur", close);
+      window.removeEventListener("resize", close);
+      window.removeEventListener("scroll", close, true);
+      window.removeEventListener("keydown", closeOnEscape);
+    };
+  }, [contextMenu]);
+
+  useEffect(() => {
+    editSessionRef.current = editSession;
+  }, [editSession]);
+
+  useEffect(() => {
+    if (!selectedId) {
+      setVersions([]);
+      return;
+    }
+    let ignore = false;
+    setVersionsLoading(true);
+    void listScriptVersions(selectedId)
+      .then((items) => {
+        if (!ignore) setVersions(items);
+      })
+      .catch((error) => {
+        if (!ignore) {
+          setToast({
+            tone: "error",
+            message: error instanceof Error ? error.message : "版本列表加载失败",
+          });
+        }
+      })
+      .finally(() => {
+        if (!ignore) setVersionsLoading(false);
+      });
+    return () => {
+      ignore = true;
+    };
+  }, [selectedId]);
+
+  useEffect(() => {
+    if (!editSession) return;
+    const intervalSeconds = Math.max(
+      5,
+      editSession.heartbeat_interval_seconds || 15,
+    );
+    let heartbeatRunning = false;
+    const timer = window.setInterval(() => {
+      if (heartbeatRunning) return;
+      const current = editSessionRef.current;
+      if (!current || current.edit_session_id !== editSession.edit_session_id) {
+        return;
+      }
+      heartbeatRunning = true;
+      void heartbeatFileLock(current)
+        .then((updated) => {
+          setEditSession((active) => active
+            && active.edit_session_id === updated.edit_session_id
+            ? {
+                ...active,
+                session_status: updated.session_status,
+                expires_at: updated.expires_at,
+              }
+            : active);
+        })
+        .catch((error) => {
+          setEditSession(null);
+          setEmbeddedJupyterUrl(null);
+          setToast({
+            tone: "error",
+            message: `编辑锁心跳已中断：${
+              error instanceof Error ? error.message : "请重新打开文件"
+            }`,
+          });
+        })
+        .finally(() => {
+          heartbeatRunning = false;
+        });
+    }, intervalSeconds * 1000);
+    return () => window.clearInterval(timer);
+  }, [editSession?.edit_session_id, editSession?.heartbeat_interval_seconds]);
+
+  useEffect(() => {
+    if (!editSession?.ticket_expires_at) return;
+    const expiresAt = new Date(editSession.ticket_expires_at).getTime();
+    const renewAfter = Math.max(15_000, expiresAt - Date.now() - 60_000);
+    const timer = window.setTimeout(() => {
+      const current = editSessionRef.current;
+      if (!current || current.edit_session_id !== editSession.edit_session_id) {
+        return;
+      }
+      void createJupyterAccessTicket(current)
+        .then((ticket) => {
+          setEditSession((active) => active
+            && active.edit_session_id === ticket.edit_session_id
+            ? { ...active, ticket_expires_at: ticket.expires_at }
+            : active);
+        })
+        .catch((error) => {
+          setToast({
+            tone: "error",
+            message: `Jupyter 访问票据续签失败：${
+              error instanceof Error ? error.message : "请重新打开文件"
+            }`,
+          });
+        });
+    }, renewAfter);
+    return () => window.clearTimeout(timer);
+  }, [editSession?.edit_session_id, editSession?.ticket_expires_at]);
+
+  useEffect(() => {
+    if (!editSession) return;
+    const handleUnload = () => {
+      const current = editSessionRef.current;
+      if (current) releaseFileLockOnUnload(current);
+    };
+    window.addEventListener("beforeunload", handleUnload);
+    return () => window.removeEventListener("beforeunload", handleUnload);
+  }, [editSession?.edit_session_id]);
+
+  const filteredScripts = useMemo(() => {
+    const normalized = keyword.trim().toLocaleLowerCase();
+    if (!normalized) return scripts;
+    return scripts.filter((item) =>
+      item.script_name.toLocaleLowerCase().includes(normalized),
+    );
+  }, [keyword, scripts]);
+
+  const memberScriptGroups = [...demoUsers]
+    .sort((left, right) => (
+      Number(right.userId === demoContext.userId)
+      - Number(left.userId === demoContext.userId)
+    ))
+    .map((user) => {
+    const memberScripts = filteredScripts.filter(
+      (item) => item.owner_user_id === user.userId,
+    );
+    const inferred = inferredDirectories(memberScripts);
+    return {
+      user,
+      scripts: memberScripts,
+      directories: user.userId === demoContext.userId
+        ? mergeDirectories(directories, inferred)
+        : inferred,
+    };
+    });
+  const selected = scripts.find((item) => item.script_id === selectedId) ?? null;
+
+  const selectScript = (scriptId: string | null) => {
+    if (selectedIdRef.current !== scriptId) {
+      editorOpenRequestRef.current += 1;
+      setEditorOpenError(null);
+    }
+    selectedIdRef.current = scriptId;
+    setSelectedId(scriptId);
+  };
+
+  const openScriptEditor = async (
+    script: ScriptItem,
+    showToast = true,
+  ) => {
+    if (editorOpeningRef.current) return;
+    editorOpeningRef.current = true;
+    const requestId = editorOpenRequestRef.current + 1;
+    editorOpenRequestRef.current = requestId;
+    const requestIsCurrent = () =>
+      editorOpenRequestRef.current === requestId
+      && selectedIdRef.current === script.script_id;
+    const clearSessionIfActive = (session: ActiveEditSession) => {
+      if (
+        editSessionRef.current?.edit_session_id === session.edit_session_id
+      ) {
+        setEmbeddedJupyterUrl(null);
+        setEditSession(null);
+        editSessionRef.current = null;
+      }
+    };
+
+    setEditBusy(true);
+    setEditorOpenError((current) =>
+      current?.scriptId === script.script_id ? null : current);
+    let active = editSessionRef.current;
+    let newlyAcquired = false;
+    try {
+      if (active && active.script_id !== script.script_id) {
+        await releaseFileLock(active);
+        setEmbeddedJupyterUrl(null);
+        setEditSession(null);
+        editSessionRef.current = null;
+        active = null;
+      }
+      if (!requestIsCurrent()) return;
+
+      if (!active) {
+        active = await acquireFileLock(script);
+        newlyAcquired = true;
+      }
+      if (!requestIsCurrent()) {
+        if (active) {
+          await releaseFileLock(active);
+          clearSessionIfActive(active);
+        }
+        return;
+      }
+
+      const ticket = await createJupyterAccessTicket(active);
+      if (!requestIsCurrent()) {
+        await releaseFileLock(active);
+        clearSessionIfActive(active);
+        return;
+      }
+
+      const readySession = {
+        ...active,
+        ticket_expires_at: ticket.expires_at,
+      };
+      setEditSession(readySession);
+      editSessionRef.current = readySession;
+      setEmbeddedJupyterUrl(ticket.jupyter_url);
+      if (showToast) {
+        setToast({
+          tone: "success",
+          message: `${script.script_name} 已打开，Jupyter 已嵌入当前工作区`,
+        });
+      }
+    } catch (error) {
+      if (newlyAcquired && active) {
+        try {
+          await releaseFileLock(active);
+        } catch {
+          // The database lease is the final safety net if compensation cannot reach Runtime.
+        }
+        setEditSession(null);
+        editSessionRef.current = null;
+      }
+      setEmbeddedJupyterUrl(null);
+      if (requestIsCurrent()) {
+        const message = error instanceof Error ? error.message : "打开编辑器失败";
+        setEditorOpenError({ scriptId: script.script_id, message });
+        if (showToast) {
+          setToast({ tone: "error", message });
+        }
+      }
+    } finally {
+      editorOpeningRef.current = false;
+      setEditBusy(false);
+    }
+  };
+
+  useEffect(() => {
+    if (
+      activePage !== "scripts"
+      || !selected
+      || selected.script_type !== "notebook"
+      || editBusy
+      || editorOpenError?.scriptId === selected.script_id
+      || (
+        editSession?.script_id === selected.script_id
+        && embeddedJupyterUrl
+      )
+    ) {
+      return;
+    }
+
+    void openScriptEditor(selected, false);
+  }, [
+    activePage,
+    editBusy,
+    editSession?.script_id,
+    editorOpenError?.scriptId,
+    embeddedJupyterUrl,
+    selected?.script_id,
+    selected?.script_type,
+  ]);
+
+  const endEditing = async (closeTab = false, showToast = true) => {
+    editorOpenRequestRef.current += 1;
+    setEditorOpenError(null);
+    const active = editSessionRef.current;
+    if (!active) {
+      if (closeTab) selectScript(null);
+      return;
+    }
+    setEditBusy(true);
+    try {
+      await releaseFileLock(active);
+      setEmbeddedJupyterUrl(null);
+      setEditSession(null);
+      editSessionRef.current = null;
+      if (closeTab) selectScript(null);
+      if (showToast) {
+        setToast({
+          tone: "success",
+          message: `${active.script_name} 的编辑锁已释放`,
+        });
+      }
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "释放编辑锁失败",
+      });
+    } finally {
+      setEditBusy(false);
+    }
+  };
+
+  useEffect(() => {
+    const active = editSessionRef.current;
+    if (
+      !active
+      || !selected
+      || selected.script_type === "notebook"
+      || selected.script_id === active.script_id
+      || editBusy
+    ) {
+      return;
+    }
+    void endEditing(false, false);
+  }, [editBusy, selected?.script_id, selected?.script_type]);
+
+  useEffect(() => {
+    if (
+      activePage === "scripts"
+      || editBusy
+      || (!editSessionRef.current && !editorOpeningRef.current)
+    ) {
+      return;
+    }
+    void endEditing(true, false);
+  }, [activePage, editBusy]);
+
+  const openPublishDialog = (script: ScriptItem) => {
+    setPublishTarget(script);
+    setReleaseNote("");
+    setPublishVisibility(
+      script.visibility === "private" ? "private" : "workspace",
+    );
+  };
+
+  const submitPublish = async (event: FormEvent) => {
+    event.preventDefault();
+    if (!publishTarget) return;
+    setPublishing(true);
+    try {
+      const version = await publishScriptVersion({
+        script: publishTarget,
+        releaseNote,
+        visibility: publishVisibility,
+      });
+      setVersions((items) => [
+        version,
+        ...items.filter((item) => item.versions_id !== version.versions_id),
+      ]);
+      setPublishTarget(null);
+      setPublishedVersion(version);
+      setToast({
+        tone: "success",
+        message: `${version.version_label} 稳定版本发布成功`,
+      });
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "稳定版本发布失败",
+      });
+    } finally {
+      setPublishing(false);
+    }
+  };
+
+  const submitCreate = async (event: FormEvent) => {
+    event.preventDefault();
+    if (!form.name.trim()) return;
+    setCreating(true);
+    try {
+      const created = await createScript(form);
+      setScripts((items) => [created, ...items]);
+      selectScript(created.script_id);
+      setCreateOpen(false);
+      setForm(initialForm);
+      setToast({
+        tone: "success",
+        message: `${created.script_name} 已创建`,
+      });
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "创建失败",
+      });
+    } finally {
+      setCreating(false);
+    }
+  };
+
+  const openCreateDialog = (
+    parentPath = "",
+    scriptType: ScriptType = "notebook",
+  ) => {
+    setContextMenu(null);
+    setForm({
+      ...initialForm,
+      parentPath,
+      scriptType,
+    });
+    setCreateOpen(true);
+  };
+
+  const openFolderDialog = (parentPath = "") => {
+    setContextMenu(null);
+    setFolderDialog({
+      open: true,
+      parentPath,
+      name: "",
+      busy: false,
+    });
+  };
+
+  const chooseUpload = (parentPath = "") => {
+    setContextMenu(null);
+    setUploadParentPath(parentPath);
+    uploadInputRef.current?.click();
+  };
+
+  const handleUpload = async (event: ChangeEvent<HTMLInputElement>) => {
+    const files = Array.from(event.target.files ?? []);
+    event.target.value = "";
+    if (files.length === 0) return;
+    setUploading(true);
+    let lastCreated: ScriptItem | null = null;
+    try {
+      for (const file of files) {
+        lastCreated = await uploadScript(file, uploadParentPath);
+      }
+      await load(true);
+      if (lastCreated) selectScript(lastCreated.script_id);
+      setToast({
+        tone: "success",
+        message: `${files.length} 个文件已上传到${
+          uploadParentPath ? ` ${uploadParentPath}` : "当前目录"
+        }`,
+      });
+    } catch (error) {
+      await load(true);
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "文件上传失败",
+      });
+    } finally {
+      setUploading(false);
+    }
+  };
+
+  const submitFolder = async (event: FormEvent) => {
+    event.preventDefault();
+    if (!folderDialog.name.trim()) return;
+    setFolderDialog((current) => ({ ...current, busy: true }));
+    try {
+      await createWorkspaceDirectory(
+        folderDialog.name.trim(),
+        folderDialog.parentPath,
+      );
+      await load(true);
+      setFolderDialog({
+        open: false,
+        parentPath: "",
+        name: "",
+        busy: false,
+      });
+      setToast({
+        tone: "success",
+        message: `${folderDialog.name.trim()} 文件夹已创建`,
+      });
+    } catch (error) {
+      setFolderDialog((current) => ({ ...current, busy: false }));
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "文件夹创建失败",
+      });
+    }
+  };
+
+  const removeScript = async (script: ScriptItem) => {
+    setContextMenu(null);
+    if (!window.confirm(`确定删除文件“${script.script_name}”吗？稳定版本会保留。`)) {
+      return;
+    }
+    if (editSessionRef.current?.script_id === script.script_id) {
+      await endEditing(false, false);
+      if (editSessionRef.current?.script_id === script.script_id) return;
+    }
+    try {
+      await deleteScript(script.script_id);
+      if (selectedIdRef.current === script.script_id) selectScript(null);
+      await load(true);
+      setToast({
+        tone: "success",
+        message: `${script.script_name} 已删除`,
+      });
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "文件删除失败",
+      });
+    }
+  };
+
+  const removeDirectory = async (path: string) => {
+    setContextMenu(null);
+    if (!window.confirm(`确定递归删除文件夹“${path}”及其内容吗？稳定版本会保留。`)) {
+      return;
+    }
+    const activeScript = scripts.find(
+      (item) => item.script_id === editSessionRef.current?.script_id,
+    );
+    if (
+      activeScript
+      && (
+        ownedScriptPath(activeScript) === path
+        || ownedScriptPath(activeScript).startsWith(`${path}/`)
+      )
+    ) {
+      await endEditing(false, false);
+      if (editSessionRef.current?.script_id === activeScript.script_id) return;
+    }
+    try {
+      const result = await deleteWorkspaceDirectory(path);
+      const selectedScript = scripts.find(
+        (item) => item.script_id === selectedIdRef.current,
+      );
+      if (
+        selectedScript
+        && ownedScriptPath(selectedScript).startsWith(`${path}/`)
+      ) {
+        selectScript(null);
+      }
+      await load(true);
+      setToast({
+        tone: "success",
+        message: `${path} 已删除（含 ${result.deleted_scripts} 个脚本）`,
+      });
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "文件夹删除失败",
+      });
+    }
+  };
+
+  const showContextMenu = (
+    event: ReactMouseEvent,
+    target: Omit<ContextMenuState, "x" | "y">,
+  ) => {
+    event.preventDefault();
+    event.stopPropagation();
+    const width = 188;
+    const height = target.kind === "file" ? 92 : 190;
+    setContextMenu({
+      ...target,
+      x: Math.min(event.clientX, window.innerWidth - width - 8),
+      y: Math.min(event.clientY, window.innerHeight - height - 8),
+    });
+  };
+
+  return (
+    <div className="app-shell">
+      <aside className="sidebar">
+        <div className="brand">
+          <span className="brand__mark"><Icon name="brand" size={31} /></span>
+          <span className="brand__name">模型实验开发平台</span>
+        </div>
+
+        <nav className="navigation" aria-label="主导航">
+          {navigation.map((item) => (
+            <button
+              className={`nav-item${
+                item.page === activePage ? " nav-item--active" : ""
+              }`}
+              key={item.label}
+              type="button"
+              onClick={() => {
+                if (item.page !== "scripts") {
+                  if (editSessionRef.current) {
+                    void endEditing(true);
+                  } else {
+                    selectScript(null);
+                  }
+                }
+                navigate(pathForPage(item.page));
+              }}
+            >
+              <Icon name={item.icon} size={19} />
+              <span>{item.label}</span>
+            </button>
+          ))}
+        </nav>
+
+        <button className="sidebar-footer" type="button">
+          <Icon name="menu" size={19} />
+          <span>收起菜单</span>
+        </button>
+      </aside>
+
+      <main className="main-area">
+        <header className="topbar">
+          <div className="page-title">
+            <button className="icon-button icon-button--back" type="button">
+              <Icon name="chevron" size={19} />
+            </button>
+            <div>
+              <span className="page-title__eyebrow">开发工作区</span>
+              <h1>{{
+                home: "工作台",
+                scripts: "构建脚本",
+                schedules: "调度配置",
+                system: "系统管理",
+              }[activePage]}</h1>
+            </div>
+          </div>
+          <div className="topbar__actions">
+            <div className="api-state">
+              <span className={`api-state__dot${apiOnline ? " is-online" : ""}`} />
+              {apiOnline ? "服务已连接" : "服务未连接"}
+            </div>
+            <div className="topbar-menu-wrap">
+              <button className="workspace-switcher" type="button" onClick={() => { setWorkspaceMenuOpen((value) => !value); setUserMenuOpen(false); }}>
+                <span className="workspace-switcher__icon"><Icon name="workspace" size={18} /></span>
+                <span><small>当前 Workspace</small><strong>{demoContext.workspaceName}</strong></span>
+                <Icon name="chevron" size={15} />
+              </button>
+              {workspaceMenuOpen && (
+                <div className="topbar-dropdown">
+                  {demoWorkspaces.map((workspace) => (
+                    <button className={workspace.workspaceId === demoContext.workspaceId ? "is-selected" : ""} type="button" key={workspace.workspaceId} onClick={() => { setDemoContext({ workspace }); window.location.reload(); }}>
+                      <Icon name="workspace" size={15} /><span><strong>{workspace.workspaceName}</strong><small>{workspace.workspaceId === demoContext.workspaceId ? "当前使用" : "点击切换"}</small></span>
+                    </button>
+                  ))}
+                </div>
+              )}
+            </div>
+            <div className="topbar-menu-wrap">
+              <button className="user-menu" type="button" onClick={() => { setUserMenuOpen((value) => !value); setWorkspaceMenuOpen(false); }}>
+                <span className="avatar">{demoContext.userName.slice(0, 1)}</span>
+                <span className="user-menu__copy"><strong>{demoContext.userName}</strong><small>{demoContext.roleName}</small></span>
+                <Icon name="chevron" size={15} />
+              </button>
+              {userMenuOpen && (
+                <div className="topbar-dropdown topbar-dropdown--users">
+                  {demoUsers.map((user) => (
+                    <button className={user.userId === demoContext.userId ? "is-selected" : ""} type="button" key={user.userId} onClick={() => { setDemoContext({ user }); window.location.reload(); }}>
+                      <span className="avatar">{user.userName.slice(0, 1)}</span><span><strong>{user.userName}</strong><small>{user.roleName} · {user.username}</small></span>
+                    </button>
+                  ))}
+                </div>
+              )}
+            </div>
+          </div>
+        </header>
+
+        {activePage === "scripts" ? (
+        <section className="workspace-layout">
+          <aside className="explorer">
+            <div className="explorer__header">
+              <div>
+                <h2>脚本目录</h2>
+                <span>{scripts.length} 个工作副本</span>
+              </div>
+              <div className="explorer__actions">
+                <button
+                  className="text-button"
+                  type="button"
+                  disabled={uploading}
+                  onClick={() => chooseUpload("")}
+                >
+                  <Icon name="upload" size={15} />
+                  {uploading ? "上传中…" : "上传"}
+                </button>
+                <input
+                  ref={uploadInputRef}
+                  className="visually-hidden"
+                  type="file"
+                  accept=".py,.ipynb"
+                  multiple
+                  onChange={(event) => void handleUpload(event)}
+                />
+                <button
+                  className="text-button"
+                  type="button"
+                  onClick={() => openCreateDialog("")}
+                >
+                  <Icon name="plus" size={16} />
+                  新建
+                </button>
+              </div>
+            </div>
+
+            <div className="search-box">
+              <Icon name="search" size={17} />
+              <input
+                aria-label="搜索脚本"
+                placeholder="搜索脚本名称"
+                value={keyword}
+                onChange={(event) => setKeyword(event.target.value)}
+              />
+              <button
+                className={refreshing ? "is-spinning" : ""}
+                type="button"
+                aria-label="刷新脚本"
+                onClick={() => void load(true)}
+              >
+                <Icon name="refresh" size={16} />
+              </button>
+            </div>
+
+            <div className="tree-scroll">
+              {loading ? (
+                <div className="tree-skeleton">
+                  <span /><span /><span /><span />
+                </div>
+              ) : (
+                <>
+                  {memberScriptGroups.map((group) => (
+                    <WorkspaceTreeGroup
+                      key={group.user.userId}
+                      title={`${group.user.userName}的文件`}
+                      scripts={group.scripts}
+                      directories={group.directories}
+                      selectedId={selectedId}
+                      onSelect={selectScript}
+                      onContextMenu={
+                        group.user.userId === demoContext.userId
+                          ? showContextMenu
+                          : undefined
+                      }
+                      readOnly={group.user.userId !== demoContext.userId}
+                    />
+                  ))}
+                  {filteredScripts.length === 0 && (
+                    <div className="tree-empty">
+                      <span className="tree-empty__icon">
+                        <Icon name="script" size={24} />
+                      </span>
+                      <strong>{keyword ? "没有匹配脚本" : "还没有构建脚本"}</strong>
+                      <p>
+                        {keyword
+                          ? "换个关键词试试"
+                          : "新建 Notebook 或 Python 脚本开始实验"}
+                      </p>
+                      {!keyword && (
+                        <button type="button" onClick={() => openCreateDialog("")}>
+                          <Icon name="plus" size={15} />
+                          新建脚本
+                        </button>
+                      )}
+                    </div>
+                  )}
+                </>
+              )}
+            </div>
+          </aside>
+
+          <section className="editor-area">
+            {selected ? (
+              <ScriptWorkspace
+                key={selected.script_id}
+                script={selected}
+                editSession={
+                  editSession?.script_id === selected.script_id
+                    ? editSession
+                    : null
+                }
+                jupyterUrl={
+                  editSession?.script_id === selected.script_id
+                    ? embeddedJupyterUrl
+                    : null
+                }
+                editBusy={editBusy}
+                openError={
+                  editorOpenError?.scriptId === selected.script_id
+                    ? editorOpenError.message
+                    : null
+                }
+                latestVersion={versions[0] ?? null}
+                versionsLoading={versionsLoading}
+                onOpenEditor={() => void openScriptEditor(selected)}
+                onEndEditing={() => void endEditing()}
+                onClose={() => {
+                  if (
+                    editSessionRef.current?.script_id === selected.script_id
+                  ) {
+                    void endEditing(true);
+                  } else {
+                    selectScript(null);
+                  }
+                }}
+                onPublish={() => openPublishDialog(selected)}
+                onInfo={setToast}
+              />
+            ) : (
+              <div className="welcome-panel">
+                <div className="welcome-panel__visual">
+                  <Icon name="script" size={42} />
+                </div>
+                <span className="welcome-panel__label">构建脚本工作台</span>
+                <h2>创建你的第一个模型脚本</h2>
+                <p>
+                  通过 Notebook 完成数据探索，或使用 Python
+                  脚本构建可调度的处理任务。
+                </p>
+                <button className="primary-button" onClick={() => openCreateDialog("")}>
+                  <Icon name="plus" size={17} />
+                  新建构建脚本
+                </button>
+              </div>
+            )}
+          </section>
+        </section>
+        ) : activePage === "schedules" ? (
+          <SchedulePage
+            key={`${demoContext.userId}-${demoContext.workspaceId}`}
+            onNotify={setToast}
+            onConnectionChange={setApiOnline}
+          />
+        ) : activePage === "system" ? (
+          <SystemAdminPage
+            key={`${demoContext.userId}-${demoContext.workspaceId}`}
+            onNotify={setToast}
+            onConnectionChange={setApiOnline}
+          />
+        ) : (
+          <DashboardPage
+            scriptCount={scripts.length}
+            online={apiOnline}
+            onNavigate={(page) => {
+              navigate(pathForPage(page));
+            }}
+          />
+        )}
+      </main>
+
+      {createOpen && (
+        <div className="modal-backdrop" role="presentation">
+          <section className="modal" role="dialog" aria-modal="true">
+            <div className="modal__header">
+              <div>
+                <span className="modal__eyebrow">工作副本</span>
+                <h2>新建构建脚本</h2>
+              </div>
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="关闭"
+                onClick={() => setCreateOpen(false)}
+              >
+                <Icon name="close" />
+              </button>
+            </div>
+            <form onSubmit={submitCreate}>
+              <div className="destination-chip">
+                <Icon name="folder" size={16} />
+                保存到：{form.parentPath || "个人根目录"}
+              </div>
+              <label className="form-field">
+                <span>脚本名称</span>
+                <input
+                  autoFocus
+                  maxLength={255}
+                  placeholder={form.scriptType === "notebook"
+                    ? "例如：数据探索"
+                    : "例如：data_process"}
+                  value={form.name}
+                  onChange={(event) =>
+                    setForm((current) => ({
+                      ...current,
+                      name: event.target.value,
+                    }))}
+                />
+                <small>
+                  系统会自动补充
+                  {form.scriptType === "notebook" ? " .ipynb" : " .py"} 后缀
+                </small>
+              </label>
+
+              <fieldset className="type-picker">
+                <legend>脚本类型</legend>
+                <button
+                  className={form.scriptType === "notebook" ? "is-selected" : ""}
+                  type="button"
+                  onClick={() => setForm((current) => ({
+                    ...current,
+                    scriptType: "notebook",
+                  }))}
+                >
+                  <span className="type-picker__icon type-picker__icon--notebook">
+                    <Icon name="notebook" size={22} />
+                  </span>
+                  <span>
+                    <strong>Jupyter Notebook</strong>
+                    <small>交互式数据探索与模型实验</small>
+                  </span>
+                  <span className="type-picker__check">
+                    <Icon name="check" size={14} />
+                  </span>
+                </button>
+                <button
+                  className={form.scriptType === "python" ? "is-selected" : ""}
+                  type="button"
+                  onClick={() => setForm((current) => ({
+                    ...current,
+                    scriptType: "python",
+                  }))}
+                >
+                  <span className="type-picker__icon type-picker__icon--python">
+                    <Icon name="python" size={23} />
+                  </span>
+                  <span>
+                    <strong>Python 脚本</strong>
+                    <small>批处理、训练和模型调用任务</small>
+                  </span>
+                  <span className="type-picker__check">
+                    <Icon name="check" size={14} />
+                  </span>
+                </button>
+              </fieldset>
+
+              <label className="form-field">
+                <span>可见范围</span>
+                <select
+                  value={form.visibility}
+                  onChange={(event) =>
+                    setForm((current) => ({
+                      ...current,
+                      visibility: event.target.value as Visibility,
+                    }))}
+                >
+                  <option value="private">仅自己可见</option>
+                  <option value="workspace">Workspace 成员可见</option>
+                  <option value="public">公开</option>
+                </select>
+              </label>
+
+              <div className="modal__footer">
+                <button
+                  className="secondary-button"
+                  type="button"
+                  onClick={() => setCreateOpen(false)}
+                >
+                  取消
+                </button>
+                <button
+                  className="primary-button"
+                  type="submit"
+                  disabled={creating || !form.name.trim()}
+                >
+                  {creating ? <span className="button-spinner" /> : <Icon name="plus" size={16} />}
+                  {creating ? "正在创建…" : "创建脚本"}
+                </button>
+              </div>
+            </form>
+          </section>
+        </div>
+      )}
+
+      {folderDialog.open && (
+        <div className="modal-backdrop" role="presentation">
+          <section className="modal modal--compact" role="dialog" aria-modal="true">
+            <div className="modal__header">
+              <div>
+                <span className="modal__eyebrow">WORKSPACE</span>
+                <h2>新建文件夹</h2>
+              </div>
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="关闭"
+                onClick={() => setFolderDialog((current) => ({
+                  ...current,
+                  open: false,
+                }))}
+              >
+                <Icon name="close" />
+              </button>
+            </div>
+            <form onSubmit={submitFolder}>
+              <div className="destination-chip">
+                <Icon name="folder" size={16} />
+                创建到：{folderDialog.parentPath || "个人根目录"}
+              </div>
+              <label className="form-field">
+                <span>文件夹名称</span>
+                <input
+                  autoFocus
+                  maxLength={255}
+                  placeholder="例如：模型训练"
+                  value={folderDialog.name}
+                  onChange={(event) => setFolderDialog((current) => ({
+                    ...current,
+                    name: event.target.value,
+                  }))}
+                />
+              </label>
+              <div className="modal__footer">
+                <button
+                  className="secondary-button"
+                  type="button"
+                  onClick={() => setFolderDialog((current) => ({
+                    ...current,
+                    open: false,
+                  }))}
+                >
+                  取消
+                </button>
+                <button
+                  className="primary-button"
+                  type="submit"
+                  disabled={folderDialog.busy || !folderDialog.name.trim()}
+                >
+                  {folderDialog.busy
+                    ? <span className="button-spinner" />
+                    : <Icon name="folder" size={16} />}
+                  {folderDialog.busy ? "正在创建…" : "创建文件夹"}
+                </button>
+              </div>
+            </form>
+          </section>
+        </div>
+      )}
+
+      {contextMenu && (
+        <div
+          className="tree-context-menu"
+          role="menu"
+          style={{ left: contextMenu.x, top: contextMenu.y }}
+          onPointerDown={(event) => event.stopPropagation()}
+        >
+          {contextMenu.kind === "file" && contextMenu.script ? (
+            <>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => {
+                  selectScript(contextMenu.script!.script_id);
+                  setContextMenu(null);
+                }}
+              >
+                <Icon name="script" size={16} />
+                打开文件
+              </button>
+              <button
+                className="is-danger"
+                type="button"
+                role="menuitem"
+                onClick={() => void removeScript(contextMenu.script!)}
+              >
+                <Icon name="close" size={16} />
+                删除文件
+              </button>
+            </>
+          ) : (
+            <>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => openCreateDialog(contextMenu.path, "notebook")}
+              >
+                <Icon name="notebook" size={16} />
+                新建 Notebook
+              </button>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => openCreateDialog(contextMenu.path, "python")}
+              >
+                <Icon name="python" size={16} />
+                新建 Python 文件
+              </button>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => openFolderDialog(contextMenu.path)}
+              >
+                <Icon name="folder" size={16} />
+                新建文件夹
+              </button>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => chooseUpload(contextMenu.path)}
+              >
+                <Icon name="upload" size={16} />
+                上传到此处
+              </button>
+              {contextMenu.kind === "directory" && (
+                <>
+                  <span className="tree-context-menu__separator" />
+                  <button
+                    className="is-danger"
+                    type="button"
+                    role="menuitem"
+                    onClick={() => void removeDirectory(contextMenu.path)}
+                  >
+                    <Icon name="close" size={16} />
+                    删除文件夹
+                  </button>
+                </>
+              )}
+            </>
+          )}
+        </div>
+      )}
+
+      {publishTarget && (
+        <div className="modal-backdrop" role="presentation">
+          <section className="modal publish-modal" role="dialog" aria-modal="true">
+            <div className="modal__header">
+              <div>
+                <span className="modal__eyebrow">不可变制品</span>
+                <h2>发布稳定版本</h2>
+              </div>
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="关闭"
+                onClick={() => setPublishTarget(null)}
+              >
+                <Icon name="close" />
+              </button>
+            </div>
+            <form onSubmit={submitPublish}>
+              <div className="publish-source">
+                <span className={`file-icon file-icon--${publishTarget.script_type}`}>
+                  <Icon name={scriptIcon(publishTarget)} size={18} />
+                </span>
+                <span>
+                  <strong>{publishTarget.script_name}</strong>
+                  <small>当前 Workspace 工作副本</small>
+                </span>
+              </div>
+              <label className="form-field">
+                <span>发布说明</span>
+                <textarea
+                  maxLength={1000}
+                  placeholder="例如：完成数据清洗和特征工程"
+                  value={releaseNote}
+                  onChange={(event) => setReleaseNote(event.target.value)}
+                />
+                <small>稳定版本内容不可修改，可作为后续调度节点输入。</small>
+              </label>
+              <label className="form-field">
+                <span>可见范围</span>
+                <select
+                  value={publishVisibility}
+                  onChange={(event) =>
+                    setPublishVisibility(event.target.value as Visibility)}
+                >
+                  <option value="private">仅自己可见</option>
+                  <option value="workspace">Workspace 成员可见</option>
+                  <option value="public">公开</option>
+                </select>
+              </label>
+              <div className="modal__footer">
+                <button
+                  className="secondary-button"
+                  type="button"
+                  onClick={() => setPublishTarget(null)}
+                >
+                  取消
+                </button>
+                <button
+                  className="primary-button"
+                  type="submit"
+                  disabled={publishing}
+                >
+                  {publishing
+                    ? <span className="button-spinner" />
+                    : <Icon name="release" size={16} />}
+                  {publishing ? "正在发布…" : "确认发布"}
+                </button>
+              </div>
+            </form>
+          </section>
+        </div>
+      )}
+
+      {publishedVersion && (
+        <div className="modal-backdrop" role="presentation">
+          <section className="modal version-receipt" role="dialog" aria-modal="true">
+            <div className="version-receipt__check">
+              <Icon name="check" size={28} />
+            </div>
+            <span className="modal__eyebrow">STABLE VERSION</span>
+            <h2>稳定版本发布成功</h2>
+            <p>
+              {publishedVersion.version_label} 已成为不可变制品，
+              后续调度将通过 versions_id 引用它。
+            </p>
+            <div className="version-id-box">
+              <span>versions_id</span>
+              <code>{publishedVersion.versions_id}</code>
+              <button
+                type="button"
+                onClick={() => {
+                  void navigator.clipboard.writeText(
+                    publishedVersion.versions_id,
+                  );
+                  setToast({ tone: "success", message: "versions_id 已复制" });
+                }}
+              >
+                复制
+              </button>
+            </div>
+            <button
+              className="primary-button version-receipt__close"
+              type="button"
+              onClick={() => setPublishedVersion(null)}
+            >
+              完成
+            </button>
+          </section>
+        </div>
+      )}
+
+      {toast && (
+        <div className={`toast toast--${toast.tone}`} role="status">
+          <span>
+            <Icon name={toast.tone === "success" ? "check" : "info"} size={17} />
+          </span>
+          {toast.message}
+        </div>
+      )}
+    </div>
+  );
+}
+
+function WorkspaceTreeGroup({
+  title,
+  scripts,
+  directories,
+  selectedId,
+  onSelect,
+  onContextMenu,
+  readOnly = false,
+}: {
+  title: string;
+  scripts: ScriptItem[];
+  directories: WorkspaceDirectory[];
+  selectedId: string | null;
+  onSelect: (id: string) => void;
+  onContextMenu?: (
+    event: ReactMouseEvent,
+    target: Omit<ContextMenuState, "x" | "y">,
+  ) => void;
+  readOnly?: boolean;
+}) {
+  const [open, setOpen] = useState(true);
+  return (
+    <div className="tree-group">
+      <button
+        className={`tree-group__title${open ? " is-open" : ""}`}
+        type="button"
+        aria-expanded={open}
+        onClick={() => setOpen((current) => !current)}
+        onContextMenu={onContextMenu
+          ? (event) => onContextMenu(event, { kind: "root", path: "" })
+          : undefined}
+      >
+        <Icon name="chevron" size={14} />
+        <Icon name="folder" size={17} />
+        <span>{title}</span>
+        <em>{scripts.length}</em>
+      </button>
+      {open && (
+        <div className="tree-group__items">
+          <WorkspaceTreeItems
+            path=""
+            depth={0}
+            scripts={scripts}
+            directories={directories}
+            selectedId={selectedId}
+            onSelect={onSelect}
+            onContextMenu={onContextMenu}
+          />
+          {scripts.length === 0 && directories.length === 0 && (
+            <p className="tree-group__empty">
+              {readOnly ? "暂无文件" : "右键此目录即可新建或上传"}
+            </p>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}
+
+function WorkspaceTreeItems({
+  path,
+  depth,
+  scripts,
+  directories,
+  selectedId,
+  onSelect,
+  onContextMenu,
+}: {
+  path: string;
+  depth: number;
+  scripts: ScriptItem[];
+  directories: WorkspaceDirectory[];
+  selectedId: string | null;
+  onSelect: (id: string) => void;
+  onContextMenu?: (
+    event: ReactMouseEvent,
+    target: Omit<ContextMenuState, "x" | "y">,
+  ) => void;
+}) {
+  const childDirectories = directories.filter(
+    (item) => item.parent_path === path,
+  );
+  const childScripts = scripts.filter(
+    (item) => parentOf(ownedScriptPath(item)) === path,
+  );
+  return (
+    <>
+      {childDirectories.map((directory) => (
+        <DirectoryBranch
+          key={directory.path}
+          directory={directory}
+          depth={depth}
+          scripts={scripts}
+          directories={directories}
+          selectedId={selectedId}
+          onSelect={onSelect}
+          onContextMenu={onContextMenu}
+        />
+      ))}
+      {childScripts.map((item) => (
+        <button
+          className={`script-row${
+            selectedId === item.script_id ? " script-row--active" : ""
+          }`}
+          style={{ paddingLeft: 20 + depth * 16 }}
+          key={item.script_id}
+          type="button"
+          onClick={() => onSelect(item.script_id)}
+          onContextMenu={onContextMenu
+            ? (event) => onContextMenu(event, {
+              kind: "file",
+              path: ownedScriptPath(item),
+              script: item,
+            })
+            : undefined}
+        >
+          <span className={`file-icon file-icon--${item.script_type}`}>
+            <Icon name={scriptIcon(item)} size={17} />
+          </span>
+          <span className="script-row__copy">
+            <strong title={item.script_name}>{item.script_name}</strong>
+            <small>{formatTime(item.updated_at)}</small>
+          </span>
+          {item.visibility !== "private" && (
+            <span className="visibility-dot" title="Workspace 可见" />
+          )}
+        </button>
+      ))}
+    </>
+  );
+}
+
+function DirectoryBranch({
+  directory,
+  depth,
+  scripts,
+  directories,
+  selectedId,
+  onSelect,
+  onContextMenu,
+}: {
+  directory: WorkspaceDirectory;
+  depth: number;
+  scripts: ScriptItem[];
+  directories: WorkspaceDirectory[];
+  selectedId: string | null;
+  onSelect: (id: string) => void;
+  onContextMenu?: (
+    event: ReactMouseEvent,
+    target: Omit<ContextMenuState, "x" | "y">,
+  ) => void;
+}) {
+  const [open, setOpen] = useState(true);
+  return (
+    <div className="directory-branch">
+      <button
+        className="directory-row"
+        style={{ paddingLeft: 10 + depth * 16 }}
+        type="button"
+        onClick={() => setOpen((current) => !current)}
+        onContextMenu={onContextMenu
+          ? (event) => onContextMenu(event, {
+            kind: "directory",
+            path: directory.path,
+          })
+          : undefined}
+      >
+        <span className={`directory-row__chevron${open ? " is-open" : ""}`}>
+          <Icon name="chevron" size={13} />
+        </span>
+        <Icon name="folder" size={17} />
+        <strong title={directory.path}>{directory.name}</strong>
+      </button>
+      {open && (
+        <WorkspaceTreeItems
+          path={directory.path}
+          depth={depth + 1}
+          scripts={scripts}
+          directories={directories}
+          selectedId={selectedId}
+          onSelect={onSelect}
+          onContextMenu={onContextMenu}
+        />
+      )}
+    </div>
+  );
+}
+
+function ScriptWorkspace({
+  script,
+  editSession,
+  jupyterUrl,
+  editBusy,
+  openError,
+  latestVersion,
+  versionsLoading,
+  onOpenEditor,
+  onEndEditing,
+  onClose,
+  onPublish,
+  onInfo,
+}: {
+  script: ScriptItem;
+  editSession: ActiveEditSession | null;
+  jupyterUrl: string | null;
+  editBusy: boolean;
+  openError: string | null;
+  latestVersion: StableVersion | null;
+  versionsLoading: boolean;
+  onOpenEditor: () => void;
+  onEndEditing: () => void;
+  onClose: () => void;
+  onPublish: () => void;
+  onInfo: (toast: ToastState) => void;
+}) {
+  const isNotebook = script.script_type === "notebook";
+  const isEditing = editSession?.session_status === "active";
+  return (
+    <>
+      <div className="tabbar">
+        <div className="editor-tab editor-tab--active">
+          <span className={`file-icon file-icon--${script.script_type}`}>
+            <Icon name={scriptIcon(script)} size={16} />
+          </span>
+          <span>{script.script_name}</span>
+          <button type="button" aria-label="关闭标签" onClick={onClose}>
+            <Icon name="close" size={14} />
+          </button>
+        </div>
+        <button
+          className="new-tab"
+          type="button"
+          onClick={() => onInfo({ tone: "info", message: "请从左侧选择或新建脚本" })}
+        >
+          <Icon name="plus" size={17} />
+        </button>
+      </div>
+
+      <div className="editor-toolbar">
+        <div className="editor-toolbar__path">
+          <span className={`file-icon file-icon--${script.script_type}`}>
+            <Icon name={scriptIcon(script)} size={17} />
+          </span>
+          <span>工作副本</span>
+          <Icon name="chevron" size={13} />
+          <strong>{script.script_name}</strong>
+        </div>
+        <div className="editor-toolbar__actions">
+          {isEditing ? (
+            <button
+              className="end-edit-button"
+              type="button"
+              disabled={editBusy}
+              onClick={onEndEditing}
+            >
+              {editBusy ? "正在释放…" : "结束编辑"}
+            </button>
+          ) : (
+            <button
+              type="button"
+              onClick={() => onInfo({
+                tone: "info",
+                message: "Jupyter 中保存后会直接写入 Workspace 工作副本",
+              })}
+            >
+              保存说明
+            </button>
+          )}
+          <button
+            className="release-button"
+            type="button"
+            onClick={onPublish}
+          >
+            发布稳定版
+          </button>
+          <span className={`stage-badge${isEditing ? " is-editing" : ""}`}>
+            <span />
+            {isEditing
+              ? isNotebook
+                ? "Demo 无锁模式 · Kernel 已连接"
+                : "Demo 无锁模式 · 编辑中"
+              : latestVersion
+                ? `最新 ${latestVersion.version_label}`
+                : "工作副本已就绪"}
+          </span>
+        </div>
+      </div>
+
+      <div className={`editor-canvas${isEditing && jupyterUrl ? " is-embedded" : ""}`}>
+        {isEditing && jupyterUrl ? (
+          <section className="embedded-jupyter">
+            <div className="embedded-jupyter__status">
+              <span>
+                <i />
+                Workspace Jupyter Server
+              </span>
+              <span>
+                {isNotebook ? "Notebook Session · Python 3 Kernel" : "Jupyter 文本编辑器"}
+              </span>
+              <code title={editSession.runtime_id}>
+                Runtime {editSession.runtime_id.slice(-8)}
+              </code>
+            </div>
+            <iframe
+              key={`${editSession.edit_session_id}:${jupyterUrl}`}
+              src={jupyterUrl}
+              title={`${script.script_name} Jupyter 编辑器`}
+              allow="clipboard-read; clipboard-write"
+              sandbox="allow-same-origin allow-scripts allow-forms allow-downloads allow-modals"
+              onLoad={(event) => confineJupyterFrame(event.currentTarget)}
+            />
+          </section>
+        ) : isNotebook ? (
+          <section
+            className={`editor-opening-state${openError ? " has-error" : ""}`}
+            aria-live="polite"
+          >
+            <div className="editor-opening-state__icon">
+              {openError
+                ? <Icon name="info" size={28} />
+                : <span className="button-spinner button-spinner--blue" />}
+            </div>
+            <strong>
+              {openError ? "Notebook 打开失败" : "正在打开 Notebook"}
+            </strong>
+            <p>
+              {openError
+                ? openError
+                : "正在获取编辑锁并连接 Workspace Jupyter Server…"}
+            </p>
+            {openError && (
+              <button
+                className="open-editor-button"
+                type="button"
+                disabled={editBusy}
+                onClick={onOpenEditor}
+              >
+                {editBusy
+                  ? <span className="button-spinner button-spinner--blue" />
+                  : <Icon name="refresh" size={16} />}
+                {editBusy ? "正在重试…" : "重试打开"}
+              </button>
+            )}
+          </section>
+        ) : (
+        <section className="script-overview">
+          <div className="script-overview__header">
+            <div>
+              <span className="section-kicker">
+                PYTHON SCRIPT
+              </span>
+              <h2>{script.script_name}</h2>
+              <p>{script.relative_path}</p>
+            </div>
+            <button
+              className={`open-editor-button${isEditing ? " is-editing" : ""}`}
+              type="button"
+              disabled={editBusy}
+              onClick={onOpenEditor}
+            >
+              {editBusy
+                ? <span className="button-spinner button-spinner--blue" />
+                : <Icon name="external" size={17} />}
+              {editBusy
+                ? "正在准备编辑器…"
+                : isEditing
+                  ? "继续编辑"
+                  : "打开编辑器"}
+            </button>
+          </div>
+
+          <div className="metadata-grid">
+            <div>
+              <span>脚本类型</span>
+              <strong>Python</strong>
+            </div>
+            <div>
+              <span>可见范围</span>
+              <strong>
+                {script.visibility === "workspace"
+                  ? "Workspace"
+                  : script.visibility === "public" ? "公开" : "私有"}
+              </strong>
+            </div>
+            <div>
+              <span>文件大小</span>
+              <strong>{formatBytes(script.size_bytes)}</strong>
+            </div>
+            <div>
+              <span>最近更新</span>
+              <strong>{formatTime(script.updated_at)}</strong>
+            </div>
+          </div>
+
+          <div className="preview-card">
+            <div className="preview-card__bar">
+              <div>
+                <span className="window-dot window-dot--red" />
+                <span className="window-dot window-dot--yellow" />
+                <span className="window-dot window-dot--green" />
+              </div>
+              <span>Python 预览</span>
+              <em>{isEditing ? "Jupyter 中可编辑" : "平台只读预览"}</em>
+            </div>
+            <PythonPreview />
+          </div>
+
+          <div className="integrity-row">
+            <span>
+              <Icon name="check" size={15} />
+              {isEditing ? "Demo 无锁编辑会话已连接" : "工作副本已同步"}
+            </span>
+            <span>SHA-256&nbsp; {shortHash(script.content_hash)}</span>
+            <span>
+              稳定版本&nbsp;
+              {versionsLoading
+                ? "加载中"
+                : latestVersion
+                  ? `${latestVersion.version_label} · ${latestVersion.versions_id}`
+                  : "尚未发布"}
+            </span>
+          </div>
+        </section>
+        )}
+      </div>
+    </>
+  );
+}
+
+function PythonPreview() {
+  return (
+    <div className="python-preview">
+      <div className="line-numbers">1<br />2<br />3<br />4<br />5<br />6<br />7<br />8<br />9</div>
+      <pre>
+        <span className="code-comment">"""模型实验开发平台构建脚本。"""</span>
+        {"\n\n"}<b>def</b> <span className="code-function">main</span>() -&gt; <b>None</b>:
+        {"\n"}    print(<i>"Hello, Model Platform!"</i>)
+        {"\n\n\n"}<b>if</b> __name__ == <i>"__main__"</i>:
+        {"\n"}    main()
+      </pre>
+    </div>
+  );
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/schedules/SchedulePage.tsx b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/schedules/SchedulePage.tsx
new file mode 100644
index 0000000..ff07ba0
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/features/schedules/SchedulePage.tsx
@@ -0,0 +1,1951 @@
+import {
+  DragEvent,
+  FormEvent,
+  MouseEvent as ReactMouseEvent,
+  PointerEvent as ReactPointerEvent,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from "react";
+
+import {
+  ApiRequestError,
+  createSchedule,
+  createScheduleEdge,
+  createScheduleNode,
+  deleteSchedule,
+  deleteScheduleEdge,
+  deleteScheduleNode,
+  hideScheduleArtifact,
+  getSchedule,
+  listScheduleArtifacts,
+  listScheduleRuns,
+  listSchedules,
+  previewCron,
+  runScheduleNow,
+  updateSchedule,
+  updateScheduleNode,
+  validateSchedule,
+  type CronPreview,
+  type Schedule,
+  type ScheduleArtifact,
+  type ScheduleEdge,
+  type ScheduleNode,
+  type ScheduleRunSummary,
+} from "../../services/api";
+import Icon from "../../components/Icon";
+import "../../styles/schedule.css";
+
+
+type Notice = {
+  tone: "success" | "error" | "info";
+  message: string;
+};
+
+type ScheduleForm = {
+  scheduleName: string;
+  description: string;
+  triggerType: "manual" | "cron" | "api";
+  cronExpression: string;
+  timezone: string;
+  enabled: boolean;
+  maxConcurrency: string;
+  failurePolicy: "stop" | "continue";
+};
+
+type NodeForm = {
+  nodeName: string;
+  timeoutSeconds: string;
+  retryCount: string;
+  retryIntervalSec: string;
+  argumentsJson: string;
+  envRefsJson: string;
+};
+
+type DragState = {
+  nodeId: string;
+  pointerId: number;
+  startClientX: number;
+  startClientY: number;
+  originX: number;
+  originY: number;
+  moved: boolean;
+};
+
+type NodePositionDraft = {
+  position_x: number;
+  position_y: number;
+};
+
+type ScheduleContextMenu =
+  | { kind: "schedule-list"; x: number; y: number }
+  | { kind: "schedule"; x: number; y: number; schedule: Schedule }
+  | { kind: "artifact"; x: number; y: number; artifact: ScheduleArtifact }
+  | { kind: "node"; x: number; y: number; node: ScheduleNode }
+  | { kind: "edge"; x: number; y: number; edge: ScheduleEdge };
+
+type ScheduleContextMenuTarget =
+  | { kind: "schedule-list" }
+  | { kind: "schedule"; schedule: Schedule }
+  | { kind: "artifact"; artifact: ScheduleArtifact }
+  | { kind: "node"; node: ScheduleNode }
+  | { kind: "edge"; edge: ScheduleEdge };
+
+const EMPTY_SCHEDULE_FORM: ScheduleForm = {
+  scheduleName: "",
+  description: "",
+  triggerType: "manual",
+  cronExpression: "0 9 * * *",
+  timezone: "Asia/Shanghai",
+  enabled: false,
+  maxConcurrency: "1",
+  failurePolicy: "stop",
+};
+
+const EMPTY_NODE_FORM: NodeForm = {
+  nodeName: "",
+  timeoutSeconds: "600",
+  retryCount: "0",
+  retryIntervalSec: "5",
+  argumentsJson: "{}",
+  envRefsJson: "{}",
+};
+
+const CANVAS_WIDTH = 1400;
+const CANVAS_HEIGHT = 860;
+const NODE_WIDTH = 218;
+const NODE_HEIGHT = 104;
+const ARTIFACT_MIME = "application/x-model-platform-version";
+
+
+function formatTime(value: string | null): string {
+  if (!value) return "尚未执行";
+  return new Intl.DateTimeFormat("zh-CN", {
+    month: "2-digit",
+    day: "2-digit",
+    hour: "2-digit",
+    minute: "2-digit",
+    hour12: false,
+  }).format(new Date(value));
+}
+
+function shortHash(value: string): string {
+  return value ? `${value.slice(0, 7)}…${value.slice(-5)}` : "—";
+}
+
+const RUN_STATUS_LABELS: Record<ScheduleRunSummary["run_status"], string> = {
+  queued: "排队中",
+  running: "运行中",
+  succeeded: "成功",
+  failed: "失败",
+  cancelled: "已取消",
+  timed_out: "已超时",
+};
+
+function formatDuration(value: number | null): string {
+  if (value === null) return "—";
+  if (value < 1000) return `${value} ms`;
+  if (value < 60_000) return `${(value / 1000).toFixed(1)} s`;
+  return `${Math.floor(value / 60_000)}m ${Math.round((value % 60_000) / 1000)}s`;
+}
+
+function parseObject(text: string, label: string): Record<string, unknown> {
+  let value: unknown;
+  try {
+    value = JSON.parse(text);
+  } catch {
+    throw new Error(`${label}必须是合法 JSON`);
+  }
+  if (!value || Array.isArray(value) || typeof value !== "object") {
+    throw new Error(`${label}必须是 JSON 对象`);
+  }
+  return value as Record<string, unknown>;
+}
+
+function scheduleToForm(schedule: Schedule): ScheduleForm {
+  return {
+    scheduleName: schedule.schedule_name,
+    description: schedule.description ?? "",
+    triggerType: schedule.trigger_type,
+    cronExpression: schedule.cron_expression ?? "0 9 * * *",
+    timezone: schedule.timezone,
+    enabled: schedule.enabled,
+    maxConcurrency: String(schedule.max_concurrency),
+    failurePolicy: schedule.failure_policy,
+  };
+}
+
+function nodeToForm(node: ScheduleNode): NodeForm {
+  return {
+    nodeName: node.node_name,
+    timeoutSeconds: String(node.timeout_seconds),
+    retryCount: String(node.retry_count),
+    retryIntervalSec: String(node.retry_interval_sec),
+    argumentsJson: JSON.stringify(node.arguments_json ?? {}, null, 2),
+    envRefsJson: JSON.stringify(node.env_refs_json ?? {}, null, 2),
+  };
+}
+
+function artifactNodeKey(
+  artifact: ScheduleArtifact,
+  schedule: Schedule,
+): string {
+  const ascii = artifact.script_name
+    .replace(/\.[^.]+$/, "")
+    .replace(/[^A-Za-z0-9_-]+/g, "_")
+    .replace(/^([^A-Za-z])/, "n_$1")
+    .replace(/^_+|_+$/g, "")
+    .slice(0, 48);
+  const base = ascii || `node_${artifact.versions_id.slice(-6).toLowerCase()}`;
+  const existing = new Set(schedule.nodes.map((item) => item.node_key));
+  if (!existing.has(base)) return base;
+  let index = 2;
+  while (existing.has(`${base}_${index}`)) index += 1;
+  return `${base}_${index}`.slice(0, 64);
+}
+
+function edgePath(
+  source: ScheduleNode,
+  target: ScheduleNode,
+): string {
+  const x1 = source.position_x + NODE_WIDTH;
+  const y1 = source.position_y + NODE_HEIGHT / 2;
+  const x2 = target.position_x;
+  const y2 = target.position_y + NODE_HEIGHT / 2;
+  const curve = Math.max(70, Math.abs(x2 - x1) * 0.45);
+  return `M ${x1} ${y1} C ${x1 + curve} ${y1}, ${x2 - curve} ${y2}, ${x2} ${y2}`;
+}
+
+
+export default function SchedulePage({
+  onNotify,
+  onConnectionChange,
+}: {
+  onNotify: (notice: Notice) => void;
+  onConnectionChange: (online: boolean) => void;
+}) {
+  const [schedules, setSchedules] = useState<Schedule[]>([]);
+  const [artifacts, setArtifacts] = useState<ScheduleArtifact[]>([]);
+  const [schedule, setSchedule] = useState<Schedule | null>(null);
+  const scheduleRef = useRef<Schedule | null>(null);
+  const [selectedNodeId, setSelectedNodeId] = useState<string | null>(null);
+  const [selectedEdgeId, setSelectedEdgeId] = useState<string | null>(null);
+  const [linkSourceId, setLinkSourceId] = useState<string | null>(null);
+  const [scheduleKeyword, setScheduleKeyword] = useState("");
+  const [artifactKeyword, setArtifactKeyword] = useState("");
+  const [loading, setLoading] = useState(true);
+  const [busy, setBusy] = useState<string | null>(null);
+  const [createDialogOpen, setCreateDialogOpen] = useState(false);
+  const [newScheduleName, setNewScheduleName] = useState("");
+  const [contextMenu, setContextMenu] =
+    useState<ScheduleContextMenu | null>(null);
+  const [scheduleForm, setScheduleForm] =
+    useState<ScheduleForm>(EMPTY_SCHEDULE_FORM);
+  const [nodeForm, setNodeForm] = useState<NodeForm>(EMPTY_NODE_FORM);
+  const [cronResult, setCronResult] = useState<CronPreview | null>(null);
+  const [runs, setRuns] = useState<ScheduleRunSummary[]>([]);
+  const [runsLoading, setRunsLoading] = useState(false);
+  const canvasRef = useRef<HTMLDivElement | null>(null);
+  const dragRef = useRef<DragState | null>(null);
+  const positionDraftsRef = useRef<Record<string, NodePositionDraft>>({});
+  const [positionDraftCount, setPositionDraftCount] = useState(0);
+
+  const selectedNode = schedule?.nodes.find(
+    (item) => item.node_id === selectedNodeId,
+  ) ?? null;
+  const selectedEdge = schedule?.edges.find(
+    (item) => item.edge_id === selectedEdgeId,
+  ) ?? null;
+
+  useEffect(() => {
+    scheduleRef.current = schedule;
+  }, [schedule]);
+
+  useEffect(() => {
+    if (schedule) setScheduleForm(scheduleToForm(schedule));
+  }, [schedule?.schedule_id, schedule?.workflow_version]);
+
+  useEffect(() => {
+    setNodeForm(selectedNode ? nodeToForm(selectedNode) : EMPTY_NODE_FORM);
+  }, [selectedNode?.node_id, selectedNode?.updated_at]);
+
+  useEffect(() => {
+    if (!contextMenu) return undefined;
+    const close = (): void => setContextMenu(null);
+    const onKeyDown = (event: KeyboardEvent): void => {
+      if (event.key === "Escape") close();
+    };
+    window.addEventListener("pointerdown", close);
+    window.addEventListener("blur", close);
+    window.addEventListener("resize", close);
+    window.addEventListener("scroll", close, true);
+    window.addEventListener("keydown", onKeyDown);
+    return () => {
+      window.removeEventListener("pointerdown", close);
+      window.removeEventListener("blur", close);
+      window.removeEventListener("resize", close);
+      window.removeEventListener("scroll", close, true);
+      window.removeEventListener("keydown", onKeyDown);
+    };
+  }, [contextMenu]);
+
+  const clearPositionDrafts = (): void => {
+    positionDraftsRef.current = {};
+    setPositionDraftCount(0);
+  };
+
+  const openContextMenu = (
+    event: ReactMouseEvent<HTMLElement | SVGElement>,
+    target: ScheduleContextMenuTarget,
+  ): void => {
+    event.preventDefault();
+    event.stopPropagation();
+    const menuWidth = 176;
+    const menuHeight = target.kind === "schedule" ? 132 : 48;
+    setContextMenu({
+      ...target,
+      x: Math.min(event.clientX, window.innerWidth - menuWidth - 8),
+      y: Math.min(event.clientY, window.innerHeight - menuHeight - 8),
+    } as ScheduleContextMenu);
+  };
+
+  const applyPositionDrafts = (serverSchedule: Schedule): Schedule => {
+    const drafts = positionDraftsRef.current;
+    if (Object.keys(drafts).length === 0) return serverSchedule;
+    return {
+      ...serverSchedule,
+      nodes: serverSchedule.nodes.map((node) => {
+        const draft = drafts[node.node_id];
+        return draft ? { ...node, ...draft } : node;
+      }),
+    };
+  };
+
+  const refreshRuns = async (
+    scheduleId: string,
+    showLoading = false,
+  ): Promise<void> => {
+    if (showLoading) setRunsLoading(true);
+    try {
+      const items = await listScheduleRuns({
+        scheduleId,
+        limit: 20,
+      });
+      if (scheduleRef.current?.schedule_id === scheduleId) {
+        setRuns(items);
+      }
+      onConnectionChange(true);
+    } catch (error) {
+      if (showLoading) {
+        await handleError(error, "运行记录加载失败");
+      }
+    } finally {
+      if (showLoading) setRunsLoading(false);
+    }
+  };
+
+  const refreshLists = async (
+    preferredScheduleId?: string | null,
+  ): Promise<void> => {
+    const [scheduleItems, artifactItems] = await Promise.all([
+      listSchedules(),
+      listScheduleArtifacts(),
+    ]);
+    setSchedules(scheduleItems);
+    setArtifacts(artifactItems);
+    const targetId = preferredScheduleId
+      ?? scheduleRef.current?.schedule_id
+      ?? scheduleItems[0]?.schedule_id
+      ?? null;
+    if (!targetId) {
+      setSchedule(null);
+      return;
+    }
+    const detail = await getSchedule(targetId);
+    setSchedule(applyPositionDrafts(detail));
+  };
+
+  useEffect(() => {
+    let cancelled = false;
+    setLoading(true);
+    Promise.all([listSchedules(), listScheduleArtifacts()])
+      .then(async ([scheduleItems, artifactItems]) => {
+        if (cancelled) return;
+        setSchedules(scheduleItems);
+        setArtifacts(artifactItems);
+        if (scheduleItems[0]) {
+          const detail = await getSchedule(scheduleItems[0].schedule_id);
+          if (!cancelled) setSchedule(applyPositionDrafts(detail));
+        }
+        onConnectionChange(true);
+      })
+      .catch((error: unknown) => {
+        if (cancelled) return;
+        onConnectionChange(false);
+        onNotify({
+          tone: "error",
+          message: error instanceof Error ? error.message : "调度数据加载失败",
+        });
+      })
+      .finally(() => {
+        if (!cancelled) setLoading(false);
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+
+  useEffect(() => {
+    const scheduleId = schedule?.schedule_id;
+    if (!scheduleId) {
+      setRuns([]);
+      return;
+    }
+    let cancelled = false;
+    setRunsLoading(true);
+    listScheduleRuns({ scheduleId, limit: 20 })
+      .then((items) => {
+        if (!cancelled) setRuns(items);
+      })
+      .catch((error: unknown) => {
+        if (!cancelled) {
+          onNotify({
+            tone: "error",
+            message: error instanceof Error ? error.message : "运行记录加载失败",
+          });
+        }
+      })
+      .finally(() => {
+        if (!cancelled) setRunsLoading(false);
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [schedule?.schedule_id]);
+
+  const hasActiveRuns = runs.some(
+    (item) => item.run_status === "queued" || item.run_status === "running",
+  );
+
+  useEffect(() => {
+    const scheduleId = schedule?.schedule_id;
+    if (!scheduleId || !hasActiveRuns) return;
+    const timer = window.setInterval(() => {
+      void refreshRuns(scheduleId);
+    }, 1500);
+    return () => window.clearInterval(timer);
+  }, [schedule?.schedule_id, hasActiveRuns]);
+
+  const handleError = async (
+    error: unknown,
+    fallback: string,
+  ): Promise<void> => {
+    if (error instanceof ApiRequestError && error.status === 412) {
+      const currentId = scheduleRef.current?.schedule_id;
+      if (currentId) {
+        withSuppressedError(() => refreshLists(currentId));
+      }
+      onNotify({
+        tone: "error",
+        message: "调度已被其他操作更新，已重新加载最新版本",
+      });
+      return;
+    }
+    onNotify({
+      tone: "error",
+      message: error instanceof Error ? error.message : fallback,
+    });
+  };
+
+  const withMutation = async (
+    label: string,
+    action: () => Promise<Schedule>,
+    successMessage: string,
+  ): Promise<Schedule | null> => {
+    if (busy) return null;
+    setBusy(label);
+    try {
+      const serverUpdated = await action();
+      const validNodeIds = new Set(
+        serverUpdated.nodes.map((node) => node.node_id),
+      );
+      positionDraftsRef.current = Object.fromEntries(
+        Object.entries(positionDraftsRef.current).filter(([nodeId]) => (
+          validNodeIds.has(nodeId)
+        )),
+      );
+      setPositionDraftCount(Object.keys(positionDraftsRef.current).length);
+      const updated = applyPositionDrafts(serverUpdated);
+      setSchedule(updated);
+      setSchedules((current) => {
+        const summary = { ...updated, nodes: [], edges: [] };
+        const index = current.findIndex(
+          (item) => item.schedule_id === updated.schedule_id,
+        );
+        if (index < 0) return [summary, ...current];
+        return current.map((item) => (
+          item.schedule_id === updated.schedule_id ? summary : item
+        ));
+      });
+      onNotify({ tone: "success", message: successMessage });
+      return updated;
+    } catch (error) {
+      await handleError(error, `${successMessage}失败`);
+      return null;
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const chooseSchedule = async (scheduleId: string): Promise<void> => {
+    if (scheduleId === schedule?.schedule_id || busy) return;
+    setBusy("load-schedule");
+    clearPositionDrafts();
+    setSelectedNodeId(null);
+    setSelectedEdgeId(null);
+    setLinkSourceId(null);
+    setCronResult(null);
+    try {
+      setSchedule(await getSchedule(scheduleId));
+      onConnectionChange(true);
+    } catch (error) {
+      await handleError(error, "调度详情加载失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const openCreateScheduleDialog = (): void => {
+    if (busy) return;
+    setContextMenu(null);
+    setNewScheduleName(`新建调度 ${schedules.length + 1}`);
+    setCreateDialogOpen(true);
+  };
+
+  const addSchedule = async (event: FormEvent<HTMLFormElement>): Promise<void> => {
+    event.preventDefault();
+    const scheduleName = newScheduleName.trim();
+    if (busy || !scheduleName) return;
+    setBusy("create-schedule");
+    try {
+      const created = await createSchedule({
+        schedule_name: scheduleName,
+        description: "在画布中拖入稳定版本并配置执行顺序",
+        trigger_type: "manual",
+        timezone: "Asia/Shanghai",
+        enabled: false,
+      });
+      setSchedules((current) => [created, ...current]);
+      setSchedule(created);
+      clearPositionDrafts();
+      setSelectedNodeId(null);
+      setCreateDialogOpen(false);
+      setNewScheduleName("");
+      onNotify({ tone: "success", message: "调度方案已创建" });
+    } catch (error) {
+      await handleError(error, "创建调度失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const removeSchedule = async (target?: Schedule): Promise<void> => {
+    const selectedSchedule = target ?? schedule;
+    if (!selectedSchedule || busy) return;
+    setContextMenu(null);
+    if (!window.confirm(`确定删除调度“${selectedSchedule.schedule_name}”吗？`)) return;
+    setBusy("delete-schedule");
+    try {
+      await deleteSchedule(
+        selectedSchedule.schedule_id,
+        selectedSchedule.workflow_version,
+      );
+      const remaining = schedules.filter(
+        (item) => item.schedule_id !== selectedSchedule.schedule_id,
+      );
+      setSchedules(remaining);
+      if (schedule?.schedule_id === selectedSchedule.schedule_id) {
+        setSchedule(null);
+        clearPositionDrafts();
+        setSelectedNodeId(null);
+        setSelectedEdgeId(null);
+        if (remaining[0]) {
+          setSchedule(await getSchedule(remaining[0].schedule_id));
+        }
+      }
+      onNotify({ tone: "success", message: "调度方案已删除" });
+    } catch (error) {
+      await handleError(error, "删除调度失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const renameSchedule = async (target: Schedule): Promise<void> => {
+    if (busy) return;
+    setContextMenu(null);
+    const scheduleName = window.prompt("请输入新的调度方案名称", target.schedule_name)?.trim();
+    if (!scheduleName || scheduleName === target.schedule_name) return;
+    setBusy("rename-schedule");
+    try {
+      const updated = await updateSchedule(target.schedule_id, {
+        workflow_version: target.workflow_version,
+        schedule_name: scheduleName,
+      });
+      setSchedules((current) => current.map((item) => (
+        item.schedule_id === updated.schedule_id
+          ? { ...updated, nodes: [], edges: [] }
+          : item
+      )));
+      if (schedule?.schedule_id === updated.schedule_id) setSchedule(updated);
+      onNotify({ tone: "success", message: "调度方案已改名" });
+    } catch (error) {
+      await handleError(error, "调度方案改名失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const removeArtifact = async (
+    artifact: ScheduleArtifact,
+  ): Promise<void> => {
+    if (busy) return;
+    setContextMenu(null);
+    if (
+      !window.confirm(
+        `确定将“${artifact.script_name} ${artifact.version_label}”移出调度列表吗？\n`
+        + "稳定版本本身和历史运行记录不会被删除。",
+      )
+    ) return;
+    setBusy("delete-artifact");
+    try {
+      await hideScheduleArtifact(artifact.versions_id);
+      setArtifacts((current) => current.filter(
+        (item) => item.versions_id !== artifact.versions_id,
+      ));
+      onNotify({
+        tone: "success",
+        message: "已移出调度列表，稳定版本和历史记录保持不变",
+      });
+    } catch (error) {
+      await handleError(error, "移出调度列表失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const saveSchedule = async (): Promise<void> => {
+    if (!schedule || busy) return;
+    const maxConcurrency = Number(scheduleForm.maxConcurrency);
+    if (!scheduleForm.scheduleName.trim()) {
+      onNotify({ tone: "error", message: "调度名称不能为空" });
+      return;
+    }
+    if (!Number.isInteger(maxConcurrency) || maxConcurrency < 1) {
+      onNotify({ tone: "error", message: "最大并发数必须是正整数" });
+      return;
+    }
+    setBusy("save-schedule");
+    let updated = scheduleRef.current ?? schedule;
+    try {
+      for (const [nodeId, position] of Object.entries(
+        positionDraftsRef.current,
+      )) {
+        updated = await updateScheduleNode(updated.schedule_id, nodeId, {
+          workflow_version: updated.workflow_version,
+          position_x: position.position_x,
+          position_y: position.position_y,
+        });
+      }
+      updated = await updateSchedule(updated.schedule_id, {
+        workflow_version: updated.workflow_version,
+        schedule_name: scheduleForm.scheduleName.trim(),
+        description: scheduleForm.description.trim() || null,
+        trigger_type: scheduleForm.triggerType,
+        cron_expression: scheduleForm.triggerType === "cron"
+          ? scheduleForm.cronExpression.trim()
+          : null,
+        timezone: scheduleForm.timezone.trim(),
+        enabled: scheduleForm.enabled,
+        max_concurrency: maxConcurrency,
+        failure_policy: scheduleForm.failurePolicy,
+      });
+      clearPositionDrafts();
+      setSchedule(updated);
+      setSchedules((current) => current.map((item) => (
+        item.schedule_id === updated.schedule_id
+          ? { ...updated, nodes: [], edges: [] }
+          : item
+      )));
+      onNotify({ tone: "success", message: "调度配置已保存" });
+    } catch (error) {
+      const localDraft = applyPositionDrafts(updated);
+      scheduleRef.current = localDraft;
+      setSchedule(localDraft);
+      await handleError(error, "调度配置保存失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const runCronPreview = async (): Promise<void> => {
+    if (scheduleForm.triggerType !== "cron") return;
+    if (busy) return;
+    setBusy("cron-preview");
+    try {
+      const result = await previewCron({
+        cron_expression: scheduleForm.cronExpression.trim(),
+        timezone: scheduleForm.timezone.trim(),
+        count: 5,
+      });
+      setCronResult(result);
+      onNotify({ tone: "success", message: "Cron 表达式校验通过" });
+    } catch (error) {
+      setCronResult(null);
+      await handleError(error, "Cron 预览失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const runNow = async (): Promise<void> => {
+    if (!schedule || busy) return;
+    if (positionDraftCount > 0) {
+      onNotify({
+        tone: "info",
+        message: "还有节点位置未保存，请先点击“保存配置”再运行",
+      });
+      return;
+    }
+    if (!schedule.dag_validation.valid || schedule.nodes.length === 0) {
+      onNotify({
+        tone: "error",
+        message: "当前调度必须包含有效的非空 DAG 才能运行",
+      });
+      return;
+    }
+    setBusy("run-now");
+    try {
+      const created = await runScheduleNow(schedule.schedule_id);
+      setRuns((current) => [
+        created,
+        ...current.filter((item) => item.run_id !== created.run_id),
+      ].slice(0, 20));
+      setSchedule((current) => (
+        current ? { ...current, last_run_at: created.queued_at } : current
+      ));
+      setSchedules((current) => current.map((item) => (
+        item.schedule_id === schedule.schedule_id
+          ? { ...item, last_run_at: created.queued_at }
+          : item
+      )));
+      onNotify({
+        tone: "success",
+        message: `运行 ${created.run_id.slice(-8)} 已进入队列`,
+      });
+    } catch (error) {
+      await handleError(error, "立即运行失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const addArtifactAt = async (
+    artifact: ScheduleArtifact,
+    positionX: number,
+    positionY: number,
+  ): Promise<void> => {
+    if (!schedule) {
+      onNotify({ tone: "info", message: "请先新建或选择一个调度方案" });
+      return;
+    }
+    const nodeKey = artifactNodeKey(artifact, schedule);
+    const updated = await withMutation(
+      "add-node",
+      () => createScheduleNode(schedule.schedule_id, {
+        workflow_version: schedule.workflow_version,
+        node_key: nodeKey,
+        node_name: artifact.script_name,
+        versions_id: artifact.versions_id,
+        timeout_seconds: 600,
+        retry_count: 0,
+        retry_interval_sec: 5,
+        position_x: Math.max(20, Math.round(positionX)),
+        position_y: Math.max(20, Math.round(positionY)),
+        arguments_json: {},
+        env_refs_json: {},
+      }),
+      `${artifact.script_name} 已加入画布`,
+    );
+    if (updated) {
+      const created = updated.nodes.find((item) => item.node_key === nodeKey);
+      setSelectedNodeId(created?.node_id ?? null);
+    }
+  };
+
+  const onArtifactDragStart = (
+    event: DragEvent<HTMLDivElement>,
+    artifact: ScheduleArtifact,
+  ): void => {
+    event.dataTransfer.effectAllowed = "copy";
+    event.dataTransfer.setData(ARTIFACT_MIME, artifact.versions_id);
+    event.dataTransfer.setData("text/plain", artifact.versions_id);
+  };
+
+  const onCanvasDrop = (event: DragEvent<HTMLDivElement>): void => {
+    event.preventDefault();
+    const versionsId = event.dataTransfer.getData(ARTIFACT_MIME)
+      || event.dataTransfer.getData("text/plain");
+    const artifact = artifacts.find((item) => item.versions_id === versionsId);
+    if (!artifact || !canvasRef.current) return;
+    const rect = canvasRef.current.getBoundingClientRect();
+    const positionX = event.clientX - rect.left
+      + canvasRef.current.scrollLeft - NODE_WIDTH / 2;
+    const positionY = event.clientY - rect.top
+      + canvasRef.current.scrollTop - NODE_HEIGHT / 2;
+    void addArtifactAt(artifact, positionX, positionY);
+  };
+
+  const startNodeDrag = (
+    event: ReactPointerEvent<HTMLDivElement>,
+    node: ScheduleNode,
+  ): void => {
+    if (event.button !== 0 || busy || linkSourceId) return;
+    const target = event.target as HTMLElement;
+    if (target.closest("button")) return;
+    event.currentTarget.setPointerCapture(event.pointerId);
+    dragRef.current = {
+      nodeId: node.node_id,
+      pointerId: event.pointerId,
+      startClientX: event.clientX,
+      startClientY: event.clientY,
+      originX: node.position_x,
+      originY: node.position_y,
+      moved: false,
+    };
+    setSelectedNodeId(node.node_id);
+    setSelectedEdgeId(null);
+  };
+
+  const moveNode = (
+    event: ReactPointerEvent<HTMLDivElement>,
+  ): void => {
+    const drag = dragRef.current;
+    if (!drag || drag.pointerId !== event.pointerId) return;
+    const deltaX = event.clientX - drag.startClientX;
+    const deltaY = event.clientY - drag.startClientY;
+    if (Math.abs(deltaX) + Math.abs(deltaY) > 3) drag.moved = true;
+    setSchedule((current) => {
+      if (!current) return current;
+      const next = {
+        ...current,
+        nodes: current.nodes.map((item) => (
+          item.node_id === drag.nodeId
+            ? {
+                ...item,
+                position_x: Math.max(10, drag.originX + deltaX),
+                position_y: Math.max(10, drag.originY + deltaY),
+              }
+            : item
+        )),
+      };
+      scheduleRef.current = next;
+      return next;
+    });
+  };
+
+  const finishNodeDrag = (
+    event: ReactPointerEvent<HTMLDivElement>,
+  ): void => {
+    const drag = dragRef.current;
+    if (!drag || drag.pointerId !== event.pointerId) return;
+    dragRef.current = null;
+    if (!drag.moved) return;
+    const current = scheduleRef.current;
+    const node = current?.nodes.find((item) => item.node_id === drag.nodeId);
+    if (!current || !node) return;
+    const position = {
+      position_x: Math.round(node.position_x),
+      position_y: Math.round(node.position_y),
+    };
+    positionDraftsRef.current = {
+      ...positionDraftsRef.current,
+      [node.node_id]: position,
+    };
+    setPositionDraftCount(Object.keys(positionDraftsRef.current).length);
+    setSchedule((value) => {
+      if (!value) return value;
+      const next = {
+        ...value,
+        nodes: value.nodes.map((item) => (
+          item.node_id === node.node_id ? { ...item, ...position } : item
+        )),
+      };
+      scheduleRef.current = next;
+      return next;
+    });
+  };
+
+  const connectTo = async (targetNodeId: string): Promise<void> => {
+    if (!schedule || !linkSourceId || busy) return;
+    if (linkSourceId === targetNodeId) {
+      setLinkSourceId(null);
+      onNotify({ tone: "info", message: "已取消连线" });
+      return;
+    }
+    const sourceId = linkSourceId;
+    setLinkSourceId(null);
+    await withMutation(
+      "create-edge",
+      () => createScheduleEdge(schedule.schedule_id, {
+        workflow_version: schedule.workflow_version,
+        source_node_id: sourceId,
+        target_node_id: targetNodeId,
+      }),
+      "节点连线已创建",
+    );
+  };
+
+  const saveNode = async (): Promise<void> => {
+    if (!schedule || !selectedNode) return;
+    try {
+      const timeoutSeconds = Number(nodeForm.timeoutSeconds);
+      const retryCount = Number(nodeForm.retryCount);
+      const retryIntervalSec = Number(nodeForm.retryIntervalSec);
+      if (!nodeForm.nodeName.trim()) throw new Error("节点名称不能为空");
+      if (!Number.isInteger(timeoutSeconds) || timeoutSeconds < 1) {
+        throw new Error("超时时间必须是正整数");
+      }
+      if (!Number.isInteger(retryCount) || retryCount < 0) {
+        throw new Error("重试次数必须是非负整数");
+      }
+      if (!Number.isInteger(retryIntervalSec) || retryIntervalSec < 0) {
+        throw new Error("重试间隔必须是非负整数");
+      }
+      const argumentsJson = parseObject(nodeForm.argumentsJson, "运行参数");
+      const rawEnv = parseObject(nodeForm.envRefsJson, "环境引用");
+      const envRefsJson = Object.fromEntries(
+        Object.entries(rawEnv).map(([key, value]) => {
+          if (typeof value !== "string") {
+            throw new Error("环境引用的值必须是字符串");
+          }
+          return [key, value];
+        }),
+      );
+      await withMutation(
+        "save-node",
+        () => updateScheduleNode(schedule.schedule_id, selectedNode.node_id, {
+          workflow_version: schedule.workflow_version,
+          node_name: nodeForm.nodeName.trim(),
+          timeout_seconds: timeoutSeconds,
+          retry_count: retryCount,
+          retry_interval_sec: retryIntervalSec,
+          arguments_json: argumentsJson,
+          env_refs_json: envRefsJson,
+        }),
+        "节点配置已保存",
+      );
+    } catch (error) {
+      await handleError(error, "节点配置保存失败");
+    }
+  };
+
+  const removeNode = async (target?: ScheduleNode): Promise<void> => {
+    const node = target ?? selectedNode;
+    if (!schedule || !node || busy) return;
+    setContextMenu(null);
+    if (!window.confirm(`确定删除节点“${node.node_name}”吗？`)) return;
+    const updated = await withMutation(
+      "delete-node",
+      () => deleteScheduleNode(
+        schedule.schedule_id,
+        node.node_id,
+        schedule.workflow_version,
+      ),
+      "节点已删除",
+    );
+    if (updated && selectedNodeId === node.node_id) setSelectedNodeId(null);
+  };
+
+  const removeEdge = async (target?: ScheduleEdge): Promise<void> => {
+    const edge = target ?? selectedEdge;
+    if (!schedule || !edge || busy) return;
+    setContextMenu(null);
+    const updated = await withMutation(
+      "delete-edge",
+      () => deleteScheduleEdge(
+        schedule.schedule_id,
+        edge.edge_id,
+        schedule.workflow_version,
+      ),
+      "连线已删除",
+    );
+    if (updated && selectedEdgeId === edge.edge_id) setSelectedEdgeId(null);
+  };
+
+  const checkDag = async (): Promise<void> => {
+    if (!schedule || busy) return;
+    setBusy("validate");
+    try {
+      const result = await validateSchedule(schedule.schedule_id);
+      setSchedule((current) => current
+        ? { ...current, dag_validation: result }
+        : current);
+      onNotify({
+        tone: result.valid ? "success" : "error",
+        message: result.valid
+          ? `DAG 校验通过，共 ${result.node_count} 个节点`
+          : result.errors.map((item) => item.message).join("；"),
+      });
+    } catch (error) {
+      await handleError(error, "DAG 校验失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const filteredSchedules = useMemo(() => {
+    const keyword = scheduleKeyword.trim().toLowerCase();
+    return keyword
+      ? schedules.filter((item) => item.schedule_name.toLowerCase().includes(keyword))
+      : schedules;
+  }, [schedules, scheduleKeyword]);
+
+  const filteredArtifacts = useMemo(() => {
+    const keyword = artifactKeyword.trim().toLowerCase();
+    return keyword
+      ? artifacts.filter((item) => (
+          item.script_name.toLowerCase().includes(keyword)
+          || item.version_label.toLowerCase().includes(keyword)
+        ))
+      : artifacts;
+  }, [artifacts, artifactKeyword]);
+
+  return (
+    <section className="schedule-page">
+      <header className="schedule-toolbar">
+        <div>
+          <strong>图形化调度</strong>
+          <span>
+            {schedule
+              ? `版本 ${schedule.workflow_version} · ${schedule.dag_validation.valid ? "DAG 有效" : "待校验"}${
+                  positionDraftCount > 0
+                    ? ` · ${positionDraftCount} 个节点位置待保存`
+                    : ""
+                }`
+              : "创建调度后开始编排"}
+          </span>
+        </div>
+        <div className="schedule-toolbar__actions">
+          <button type="button" onClick={openCreateScheduleDialog}>
+            <Icon name="plus" size={15} />新建
+          </button>
+          <button
+            className="schedule-action--primary"
+            type="button"
+            disabled={!schedule || Boolean(busy)}
+            onClick={() => void saveSchedule()}
+          >
+            <Icon name="check" size={15} />保存配置
+          </button>
+          <button
+            type="button"
+            disabled={!schedule || Boolean(busy)}
+            onClick={() => void checkDag()}
+          >
+            校验 DAG
+          </button>
+          <button
+            className="schedule-action--run"
+            type="button"
+            disabled={
+              !schedule
+              || Boolean(busy)
+              || !schedule.dag_validation.valid
+              || schedule.nodes.length === 0
+            }
+            title={
+              positionDraftCount > 0
+                ? "请先保存节点位置"
+                : "立即执行当前已保存的稳定版本 DAG"
+            }
+            onClick={() => void runNow()}
+          >
+            <Icon name="play" size={14} />立即运行
+          </button>
+          <button
+            className="schedule-action--danger"
+            type="button"
+            disabled={!schedule || Boolean(busy)}
+            onClick={() => void removeSchedule(schedule ?? undefined)}
+          >
+            删除
+          </button>
+        </div>
+      </header>
+
+      <div className="schedule-workbench">
+        <aside className="schedule-left">
+          <section className="schedule-panel schedule-list-panel">
+            <div
+              className="schedule-panel__title"
+              onContextMenu={(event) => openContextMenu(event, { kind: "schedule-list" })}
+            >
+              <div><strong>调度方案</strong><span>{schedules.length}</span></div>
+            </div>
+            <label className="schedule-search">
+              <Icon name="search" size={15} />
+              <input
+                value={scheduleKeyword}
+                placeholder="搜索调度名称"
+                onChange={(event) => setScheduleKeyword(event.target.value)}
+              />
+            </label>
+            <div
+              className="schedule-list"
+              onContextMenu={(event) => openContextMenu(event, { kind: "schedule-list" })}
+            >
+              {loading ? (
+                <p className="schedule-empty">正在加载调度方案…</p>
+              ) : filteredSchedules.length ? (
+                filteredSchedules.map((item) => (
+                  <button
+                    className={`schedule-card${
+                      schedule?.schedule_id === item.schedule_id
+                        ? " schedule-card--active"
+                        : ""
+                    }`}
+                    key={item.schedule_id}
+                    type="button"
+                    onClick={() => void chooseSchedule(item.schedule_id)}
+                    onContextMenu={(event) => openContextMenu(event, {
+                      kind: "schedule",
+                      schedule: item,
+                    })}
+                  >
+                    <span className={`schedule-status${item.enabled ? " is-enabled" : ""}`} />
+                    <span>
+                      <strong>{item.schedule_name}</strong>
+                      <small>
+                        {item.node_count} 个节点 · {item.enabled ? "已启用" : "未启用"}
+                      </small>
+                    </span>
+                  </button>
+                ))
+              ) : (
+                <p className="schedule-empty">暂无调度方案</p>
+              )}
+            </div>
+          </section>
+
+          <section className="schedule-panel schedule-artifacts-panel">
+            <div className="schedule-panel__title">
+              <div><strong>稳定版本脚本</strong><span>{artifacts.length}</span></div>
+            </div>
+            <label className="schedule-search">
+              <Icon name="search" size={15} />
+              <input
+                value={artifactKeyword}
+                placeholder="搜索稳定版本"
+                onChange={(event) => setArtifactKeyword(event.target.value)}
+              />
+            </label>
+            <p className="artifact-tip">拖动卡片到画布，节点将保存 versions_id</p>
+            <div className="artifact-list">
+              {filteredArtifacts.length ? filteredArtifacts.map((artifact) => (
+                <div
+                  className="artifact-card"
+                  draggable
+                  key={artifact.versions_id}
+                  onDragStart={(event) => onArtifactDragStart(event, artifact)}
+                  onContextMenu={(event) => openContextMenu(event, {
+                    kind: "artifact",
+                    artifact,
+                  })}
+                  onDoubleClick={() => void addArtifactAt(
+                    artifact,
+                    90 + (schedule?.nodes.length ?? 0) * 245,
+                    130,
+                  )}
+                >
+                  <span className={`artifact-card__icon artifact-card__icon--${artifact.script_type}`}>
+                    <Icon
+                      name={artifact.script_type === "notebook" ? "notebook" : "python"}
+                      size={17}
+                    />
+                  </span>
+                  <span>
+                    <strong>{artifact.script_name}</strong>
+                    <small>
+                      {artifact.version_label} · {shortHash(artifact.content_hash)}
+                    </small>
+                  </span>
+                </div>
+              )) : (
+                <p className="schedule-empty">
+                  暂无稳定版本，请先在“构建脚本”中发布
+                </p>
+              )}
+            </div>
+          </section>
+        </aside>
+
+        <main className="schedule-center">
+          <div className="schedule-canvas-title">
+            <div>
+              <strong>流程画布</strong>
+              <span>
+                拖入稳定版本；点击节点右侧圆点，再点击目标左侧圆点完成连线
+              </span>
+            </div>
+            {linkSourceId && (
+              <button type="button" onClick={() => setLinkSourceId(null)}>
+                取消连线
+              </button>
+            )}
+          </div>
+          <div
+            className={`schedule-canvas${linkSourceId ? " is-linking" : ""}`}
+            ref={canvasRef}
+            onDragOver={(event) => {
+              event.preventDefault();
+              event.dataTransfer.dropEffect = "copy";
+            }}
+            onDrop={onCanvasDrop}
+            onClick={(event) => {
+              if (event.target === event.currentTarget) {
+                setSelectedNodeId(null);
+                setSelectedEdgeId(null);
+              }
+            }}
+          >
+            <div
+              className="schedule-canvas__surface"
+              style={{ width: CANVAS_WIDTH, height: CANVAS_HEIGHT }}
+            >
+              {schedule && (
+                <svg
+                  className="schedule-edges"
+                  viewBox={`0 0 ${CANVAS_WIDTH} ${CANVAS_HEIGHT}`}
+                  aria-label="调度连线"
+                >
+                  <defs>
+                    <marker
+                      id="schedule-arrow"
+                      markerWidth="8"
+                      markerHeight="8"
+                      refX="7"
+                      refY="4"
+                      orient="auto"
+                    >
+                      <path d="M0,0 L8,4 L0,8 Z" fill="#4e92db" />
+                    </marker>
+                  </defs>
+                  {schedule.edges.map((edge) => {
+                    const source = schedule.nodes.find(
+                      (node) => node.node_id === edge.source_node_id,
+                    );
+                    const target = schedule.nodes.find(
+                      (node) => node.node_id === edge.target_node_id,
+                    );
+                    if (!source || !target) return null;
+                    const path = edgePath(source, target);
+                    return (
+                      <g
+                        className={selectedEdgeId === edge.edge_id ? "is-selected" : ""}
+                        key={edge.edge_id}
+                        onClick={(event) => {
+                          event.stopPropagation();
+                          setSelectedEdgeId(edge.edge_id);
+                          setSelectedNodeId(null);
+                        }}
+                        onContextMenu={(event) => openContextMenu(event, {
+                          kind: "edge",
+                          edge,
+                        })}
+                      >
+                        <path className="schedule-edge-hit" d={path} />
+                        <path
+                          className="schedule-edge-line"
+                          d={path}
+                          markerEnd="url(#schedule-arrow)"
+                        />
+                      </g>
+                    );
+                  })}
+                </svg>
+              )}
+
+              {schedule?.nodes.map((node) => (
+                <div
+                  className={`schedule-node${
+                    selectedNodeId === node.node_id ? " is-selected" : ""
+                  }`}
+                  key={node.node_id}
+                  style={{
+                    left: node.position_x,
+                    top: node.position_y,
+                    width: NODE_WIDTH,
+                    height: NODE_HEIGHT,
+                  }}
+                  onPointerDown={(event) => startNodeDrag(event, node)}
+                  onPointerMove={moveNode}
+                  onPointerUp={finishNodeDrag}
+                  onPointerCancel={finishNodeDrag}
+                  onContextMenu={(event) => openContextMenu(event, {
+                    kind: "node",
+                    node,
+                  })}
+                >
+                  <button
+                    className="schedule-node__port schedule-node__port--in"
+                    type="button"
+                    aria-label={`连接到${node.node_name}`}
+                    title={linkSourceId ? "点击完成连线" : "输入端口"}
+                    onPointerDown={(event) => event.stopPropagation()}
+                    onClick={(event) => {
+                      event.stopPropagation();
+                      void connectTo(node.node_id);
+                    }}
+                  />
+                  <div className="schedule-node__heading">
+                    <span className={`schedule-node__type schedule-node__type--${node.version.script_type}`}>
+                      <Icon
+                        name={node.version.script_type === "notebook" ? "notebook" : "python"}
+                        size={14}
+                      />
+                    </span>
+                    <strong>{node.node_name}</strong>
+                    <button
+                      type="button"
+                      aria-label="删除节点"
+                      onPointerDown={(event) => event.stopPropagation()}
+                      onClick={(event) => {
+                        event.stopPropagation();
+                        setSelectedNodeId(node.node_id);
+                        setSelectedEdgeId(null);
+                      }}
+                    >
+                      <Icon name="settings" size={14} />
+                    </button>
+                  </div>
+                  <p>{node.version.script_name}</p>
+                  <footer>
+                    <span>{node.node_key}</span>
+                    <b>{node.version.version_label}</b>
+                  </footer>
+                  <button
+                    className={`schedule-node__port schedule-node__port--out${
+                      linkSourceId === node.node_id ? " is-active" : ""
+                    }`}
+                    type="button"
+                    aria-label={`从${node.node_name}开始连线`}
+                    title="输出端口"
+                    onPointerDown={(event) => event.stopPropagation()}
+                    onClick={(event) => {
+                      event.stopPropagation();
+                      setLinkSourceId((current) => (
+                        current === node.node_id ? null : node.node_id
+                      ));
+                      setSelectedNodeId(node.node_id);
+                      setSelectedEdgeId(null);
+                    }}
+                  />
+                </div>
+              ))}
+
+              {!schedule ? (
+                <div className="schedule-canvas-empty">
+                  <Icon name="schedule" size={34} />
+                  <strong>还没有选中调度方案</strong>
+                  <p>点击“新建”创建一个调度，然后拖入稳定版本脚本。</p>
+                  <button type="button" onClick={openCreateScheduleDialog}>
+                    <Icon name="plus" size={15} />新建调度
+                  </button>
+                </div>
+              ) : schedule.nodes.length === 0 ? (
+                <div className="schedule-canvas-empty">
+                  <Icon name="release" size={34} />
+                  <strong>从稳定版本开始编排</strong>
+                  <p>把左侧脚本卡片拖到这里，或双击卡片快速加入。</p>
+                </div>
+              ) : null}
+            </div>
+          </div>
+          <footer className="schedule-canvas-status">
+            <span className={schedule?.dag_validation.valid ? "is-valid" : ""}>
+              {schedule?.dag_validation.valid ? "✓ DAG 有效" : "○ DAG 待校验"}
+            </span>
+            <span>{schedule?.nodes.length ?? 0} 个节点</span>
+            <span>{schedule?.edges.length ?? 0} 条连线</span>
+            {selectedEdge && (
+              <button type="button" onClick={() => void removeEdge(selectedEdge)}>
+                删除选中连线
+              </button>
+            )}
+          </footer>
+        </main>
+
+        <aside className="schedule-right">
+          <div className="schedule-inspector-scroll">
+            {selectedNode ? (
+              <NodeInspector
+                node={selectedNode}
+                form={nodeForm}
+                busy={Boolean(busy)}
+                onChange={setNodeForm}
+                onSave={() => void saveNode()}
+                onDelete={() => void removeNode(selectedNode)}
+              />
+            ) : (
+              <ScheduleInspector
+                schedule={schedule}
+                form={scheduleForm}
+                cronResult={cronResult}
+                busy={Boolean(busy)}
+                onChange={setScheduleForm}
+                onPreview={() => void runCronPreview()}
+                onSave={() => void saveSchedule()}
+              />
+            )}
+          </div>
+          <RunHistory
+            runs={runs}
+            loading={runsLoading}
+            disabled={!schedule || Boolean(busy)}
+            onRefresh={() => {
+              if (schedule) void refreshRuns(schedule.schedule_id, true);
+            }}
+          />
+        </aside>
+      </div>
+
+      {contextMenu && (
+        <div
+          className="schedule-context-menu"
+          role="menu"
+          style={{ left: contextMenu.x, top: contextMenu.y }}
+          onPointerDown={(event) => event.stopPropagation()}
+        >
+          {contextMenu.kind === "schedule-list" && (
+            <button
+              className="schedule-context-menu__action"
+              type="button"
+              role="menuitem"
+              onClick={openCreateScheduleDialog}
+            >
+              <Icon name="plus" size={14} />
+              新建调度方案
+            </button>
+          )}
+          {contextMenu.kind === "schedule" && (
+            <>
+              <button
+                className="schedule-context-menu__action"
+                type="button"
+                role="menuitem"
+                onClick={openCreateScheduleDialog}
+              >
+                <Icon name="plus" size={14} />
+                新建调度方案
+              </button>
+              <button
+                className="schedule-context-menu__action"
+                type="button"
+                role="menuitem"
+                onClick={() => void renameSchedule(contextMenu.schedule)}
+              >
+                <Icon name="settings" size={14} />
+                改名
+              </button>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => void removeSchedule(contextMenu.schedule)}
+              >
+                <Icon name="close" size={14} />
+                删除调度方案
+              </button>
+            </>
+          )}
+          {contextMenu.kind === "artifact" && (
+            <button
+              type="button"
+              role="menuitem"
+              onClick={() => void removeArtifact(contextMenu.artifact)}
+            >
+              <Icon name="close" size={14} />
+              移出调度列表
+            </button>
+          )}
+          {contextMenu.kind === "node" && (
+            <button
+              type="button"
+              role="menuitem"
+              onClick={() => void removeNode(contextMenu.node)}
+            >
+              <Icon name="close" size={14} />
+              删除画布节点
+            </button>
+          )}
+          {contextMenu.kind === "edge" && (
+            <button
+              type="button"
+              role="menuitem"
+              onClick={() => void removeEdge(contextMenu.edge)}
+            >
+              <Icon name="close" size={14} />
+              删除画布连线
+            </button>
+          )}
+        </div>
+      )}
+
+      {createDialogOpen && (
+        <div className="modal-backdrop" role="presentation">
+          <section
+            className="modal modal--compact"
+            role="dialog"
+            aria-modal="true"
+            aria-labelledby="create-schedule-title"
+          >
+            <div className="modal__header">
+              <div>
+                <span className="modal__eyebrow">SCHEDULE</span>
+                <h2 id="create-schedule-title">新建调度方案</h2>
+              </div>
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="关闭"
+                disabled={Boolean(busy)}
+                onClick={() => setCreateDialogOpen(false)}
+              >
+                <Icon name="close" />
+              </button>
+            </div>
+            <form onSubmit={(event) => void addSchedule(event)}>
+              <label className="form-field">
+                <span>调度方案名称</span>
+                <input
+                  autoFocus
+                  maxLength={255}
+                  placeholder="请输入调度方案名称"
+                  value={newScheduleName}
+                  onChange={(event) => setNewScheduleName(event.target.value)}
+                  onFocus={(event) => event.currentTarget.select()}
+                />
+              </label>
+              <div className="modal__footer">
+                <button
+                  className="secondary-button"
+                  type="button"
+                  disabled={Boolean(busy)}
+                  onClick={() => setCreateDialogOpen(false)}
+                >
+                  取消
+                </button>
+                <button
+                  className="primary-button"
+                  type="submit"
+                  disabled={Boolean(busy) || !newScheduleName.trim()}
+                >
+                  {busy === "create-schedule"
+                    ? <span className="button-spinner" />
+                    : <Icon name="plus" size={15} />}
+                  {busy === "create-schedule" ? "正在创建…" : "创建调度"}
+                </button>
+              </div>
+            </form>
+          </section>
+        </div>
+      )}
+
+      {busy && (
+        <div className="schedule-busy" aria-live="polite">
+          <span />
+          {busy === "run-now" ? "正在创建运行…" : "正在同步调度配置…"}
+        </div>
+      )}
+    </section>
+  );
+}
+
+
+function RunHistory({
+  runs,
+  loading,
+  disabled,
+  onRefresh,
+}: {
+  runs: ScheduleRunSummary[];
+  loading: boolean;
+  disabled: boolean;
+  onRefresh: () => void;
+}) {
+  return (
+    <section className="schedule-run-history">
+      <header>
+        <div>
+          <strong>运行记录</strong>
+          <span>{runs.length}</span>
+        </div>
+        <button
+          type="button"
+          aria-label="刷新运行记录"
+          disabled={disabled || loading}
+          onClick={onRefresh}
+        >
+          <Icon name="refresh" size={13} />
+        </button>
+      </header>
+      <div className="schedule-run-list">
+        {loading && runs.length === 0 ? (
+          <p>正在加载运行记录…</p>
+        ) : runs.length === 0 ? (
+          <p>点击右上角“立即运行”后，这里会显示状态和耗时。</p>
+        ) : (
+          runs.map((run) => (
+            <article className="schedule-run-card" key={run.run_id}>
+              <span className={`run-status-dot is-${run.run_status}`} />
+              <div>
+                <strong>{RUN_STATUS_LABELS[run.run_status]}</strong>
+                <small>
+                  {formatTime(run.queued_at)} · {formatDuration(run.duration_ms)}
+                </small>
+                {run.error_message && <p>{run.error_message}</p>}
+              </div>
+              <code title={run.run_id}>{run.run_id.slice(-8)}</code>
+            </article>
+          ))
+        )}
+      </div>
+    </section>
+  );
+}
+
+
+function ScheduleInspector({
+  schedule,
+  form,
+  cronResult,
+  busy,
+  onChange,
+  onPreview,
+  onSave,
+}: {
+  schedule: Schedule | null;
+  form: ScheduleForm;
+  cronResult: CronPreview | null;
+  busy: boolean;
+  onChange: (form: ScheduleForm) => void;
+  onPreview: () => void;
+  onSave: () => void;
+}) {
+  if (!schedule) {
+    return (
+      <div className="schedule-inspector-empty">
+        <Icon name="settings" size={28} />
+        <strong>调度属性</strong>
+        <p>选中调度方案后可配置触发方式、Cron 和执行策略。</p>
+      </div>
+    );
+  }
+  return (
+    <div className="schedule-inspector">
+      <section>
+        <h3>基本信息</h3>
+        <label>
+          <span>调度名称</span>
+          <input
+            value={form.scheduleName}
+            onChange={(event) => onChange({
+              ...form,
+              scheduleName: event.target.value,
+            })}
+          />
+        </label>
+        <label>
+          <span>说明</span>
+          <textarea
+            rows={2}
+            value={form.description}
+            onChange={(event) => onChange({
+              ...form,
+              description: event.target.value,
+            })}
+          />
+        </label>
+        <label className="schedule-switch-row">
+          <span>
+            <b>启用调度</b>
+            <small>DAG 有效后才能启用</small>
+          </span>
+          <input
+            type="checkbox"
+            checked={form.enabled}
+            onChange={(event) => onChange({
+              ...form,
+              enabled: event.target.checked,
+            })}
+          />
+        </label>
+      </section>
+
+      <section>
+        <h3>触发器</h3>
+        <label>
+          <span>触发方式</span>
+          <select
+            value={form.triggerType}
+            onChange={(event) => onChange({
+              ...form,
+              triggerType: event.target.value as ScheduleForm["triggerType"],
+              enabled: event.target.value === "cron" ? form.enabled : false,
+            })}
+          >
+            <option value="manual">手动触发</option>
+            <option value="cron">Cron 定时</option>
+            <option value="api">API 触发</option>
+          </select>
+        </label>
+        {form.triggerType === "cron" && (
+          <>
+            <label>
+              <span>Cron（分 时 日 月 周）</span>
+              <input
+                value={form.cronExpression}
+                onChange={(event) => onChange({
+                  ...form,
+                  cronExpression: event.target.value,
+                })}
+              />
+            </label>
+            <label>
+              <span>时区</span>
+              <input
+                value={form.timezone}
+                onChange={(event) => onChange({
+                  ...form,
+                  timezone: event.target.value,
+                })}
+              />
+            </label>
+            <button
+              className="inspector-secondary-button"
+              type="button"
+              disabled={busy}
+              onClick={onPreview}
+            >
+              预览未来 5 次
+            </button>
+            {cronResult && (
+              <ol className="cron-preview-list">
+                {cronResult.occurrences.map((item) => (
+                  <li key={item.utc_time}>
+                    {new Date(item.local_time).toLocaleString("zh-CN", {
+                      hour12: false,
+                    })}
+                  </li>
+                ))}
+              </ol>
+            )}
+          </>
+        )}
+      </section>
+
+      <section>
+        <h3>执行策略</h3>
+        <div className="inspector-grid">
+          <label>
+            <span>最大并发</span>
+            <input
+              type="number"
+              min="1"
+              max="64"
+              value={form.maxConcurrency}
+              onChange={(event) => onChange({
+                ...form,
+                maxConcurrency: event.target.value,
+              })}
+            />
+          </label>
+          <label>
+            <span>失败策略</span>
+            <select
+              value={form.failurePolicy}
+              onChange={(event) => onChange({
+                ...form,
+                failurePolicy: event.target.value as "stop" | "continue",
+              })}
+            >
+              <option value="stop">停止后续</option>
+              <option value="continue">继续执行</option>
+            </select>
+          </label>
+        </div>
+        <div className="schedule-next-run">
+          <span>下一次执行</span>
+          <strong>{formatTime(schedule.next_run_at)}</strong>
+        </div>
+      </section>
+
+      <button
+        className="inspector-primary-button"
+        type="button"
+        disabled={busy}
+        onClick={onSave}
+      >
+        保存调度属性
+      </button>
+    </div>
+  );
+}
+
+
+function NodeInspector({
+  node,
+  form,
+  busy,
+  onChange,
+  onSave,
+  onDelete,
+}: {
+  node: ScheduleNode;
+  form: NodeForm;
+  busy: boolean;
+  onChange: (form: NodeForm) => void;
+  onSave: () => void;
+  onDelete: () => void;
+}) {
+  return (
+    <div className="schedule-inspector">
+      <section className="node-inspector-title">
+        <span className={`artifact-card__icon artifact-card__icon--${node.version.script_type}`}>
+          <Icon
+            name={node.version.script_type === "notebook" ? "notebook" : "python"}
+            size={17}
+          />
+        </span>
+        <div>
+          <small>节点配置</small>
+          <strong>{node.node_key}</strong>
+        </div>
+      </section>
+      <section>
+        <h3>稳定版本</h3>
+        <div className="version-readonly">
+          <strong>{node.version.script_name}</strong>
+          <span>{node.version.version_label}</span>
+          <small>versions_id: {node.versions_id}</small>
+          <small>SHA-256: {shortHash(node.version.content_hash)}</small>
+        </div>
+      </section>
+      <section>
+        <h3>节点信息</h3>
+        <label>
+          <span>节点名称</span>
+          <input
+            value={form.nodeName}
+            onChange={(event) => onChange({
+              ...form,
+              nodeName: event.target.value,
+            })}
+          />
+        </label>
+        <div className="inspector-grid">
+          <label>
+            <span>超时（秒）</span>
+            <input
+              type="number"
+              min="1"
+              value={form.timeoutSeconds}
+              onChange={(event) => onChange({
+                ...form,
+                timeoutSeconds: event.target.value,
+              })}
+            />
+          </label>
+          <label>
+            <span>重试次数</span>
+            <input
+              type="number"
+              min="0"
+              max="10"
+              value={form.retryCount}
+              onChange={(event) => onChange({
+                ...form,
+                retryCount: event.target.value,
+              })}
+            />
+          </label>
+        </div>
+        <label>
+          <span>重试间隔（秒）</span>
+          <input
+            type="number"
+            min="0"
+            value={form.retryIntervalSec}
+            onChange={(event) => onChange({
+              ...form,
+              retryIntervalSec: event.target.value,
+            })}
+          />
+        </label>
+      </section>
+      <section>
+        <h3>运行参数</h3>
+        <label>
+          <span>arguments_json</span>
+          <textarea
+            className="json-editor"
+            rows={5}
+            spellCheck={false}
+            value={form.argumentsJson}
+            onChange={(event) => onChange({
+              ...form,
+              argumentsJson: event.target.value,
+            })}
+          />
+        </label>
+        <label>
+          <span>env_refs_json</span>
+          <textarea
+            className="json-editor"
+            rows={4}
+            spellCheck={false}
+            value={form.envRefsJson}
+            onChange={(event) => onChange({
+              ...form,
+              envRefsJson: event.target.value,
+            })}
+          />
+        </label>
+      </section>
+      <div className="node-inspector-actions">
+        <button
+          className="inspector-primary-button"
+          type="button"
+          disabled={busy}
+          onClick={onSave}
+        >
+          保存节点
+        </button>
+        <button
+          className="inspector-danger-button"
+          type="button"
+          disabled={busy}
+          onClick={onDelete}
+        >
+          删除节点
+        </button>
+      </div>
+    </div>
+  );
+}
+
+
+function withSuppressedError(action: () => Promise<void>): void {
+  void action().catch(() => undefined);
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/root.tsx b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/root.tsx
new file mode 100644
index 0000000..6cce2dc
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/root.tsx
@@ -0,0 +1,75 @@
+import {
+  isRouteErrorResponse,
+  Links,
+  Meta,
+  Outlet,
+  Scripts,
+  ScrollRestoration,
+} from "react-router";
+
+import type { Route } from "./+types/root";
+import "./app.css";
+
+export const links: Route.LinksFunction = () => [
+  { rel: "preconnect", href: "https://fonts.googleapis.com" },
+  {
+    rel: "preconnect",
+    href: "https://fonts.gstatic.com",
+    crossOrigin: "anonymous",
+  },
+  {
+    rel: "stylesheet",
+    href: "https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap",
+  },
+];
+
+export function Layout({ children }: { children: React.ReactNode }) {
+  return (
+    <html lang="zh-CN">
+      <head>
+        <meta charSet="utf-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1" />
+        <Meta />
+        <Links />
+      </head>
+      <body>
+        {children}
+        <ScrollRestoration />
+        <Scripts />
+      </body>
+    </html>
+  );
+}
+
+export default function App() {
+  return <Outlet />;
+}
+
+export function ErrorBoundary({ error }: Route.ErrorBoundaryProps) {
+  let message = "页面加载失败";
+  let details = "系统发生了未预期的错误。";
+  let stack: string | undefined;
+
+  if (isRouteErrorResponse(error)) {
+    message = error.status === 404 ? "404" : "请求失败";
+    details =
+      error.status === 404
+        ? "没有找到请求的页面。"
+        : error.statusText || details;
+  } else if (import.meta.env.DEV && error && error instanceof Error) {
+    details = error.message;
+    stack = error.stack;
+  }
+
+  return (
+    <main className="pt-16 p-4 container mx-auto">
+      <h1>{message}</h1>
+      <p>{details}</p>
+      {stack && (
+        <pre className="w-full p-4 overflow-x-auto">
+          <code>{stack}</code>
+        </pre>
+      )}
+    </main>
+  );
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/routes.ts b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/routes.ts
new file mode 100644
index 0000000..87d802e
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/routes.ts
@@ -0,0 +1,3 @@
+import { type RouteConfig, route } from "@react-router/dev/routes";
+
+export default [route("*", "routes/platform.tsx")] satisfies RouteConfig;
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/routes/platform.tsx b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/routes/platform.tsx
new file mode 100644
index 0000000..6f9b64c
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/routes/platform.tsx
@@ -0,0 +1,13 @@
+import type { Route } from "./+types/platform";
+import ModelPlatformApp from "../features/platform/ModelPlatformApp";
+
+export function meta({}: Route.MetaArgs) {
+  return [
+    { title: "模型实验开发平台" },
+    { name: "description", content: "模型实验、脚本版本与 DAG 调度平台" },
+  ];
+}
+
+export default function PlatformRoute() {
+  return <ModelPlatformApp />;
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/services/api.ts b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/services/api.ts
new file mode 100644
index 0000000..766b150
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/services/api.ts
@@ -0,0 +1,853 @@
+export type DemoUser = {
+  userId: string;
+  userName: string;
+  username: string;
+  roleCode: "admin" | "developer";
+  roleName: string;
+};
+
+export type DemoWorkspace = {
+  workspaceId: string;
+  workspaceName: string;
+};
+
+export const demoUsers: DemoUser[] = [
+  { userId: "0000000000RF6FG1SDBXG59S13", userName: "张三", username: "admin-zhang", roleCode: "admin", roleName: "管理员" },
+  { userId: "0000000000H2QYCGPCWQM1JSGS", userName: "李四", username: "admin-li", roleCode: "admin", roleName: "管理员" },
+  { userId: "0000000000RWG40ESZPGJT629J", userName: "王五", username: "dev-wang", roleCode: "developer", roleName: "开发人员" },
+  { userId: "00000000004CQV7WASJA6N6FW4", userName: "赵六", username: "dev-zhao", roleCode: "developer", roleName: "开发人员" },
+];
+
+export const demoWorkspaces: DemoWorkspace[] = [
+  { workspaceId: "00000000000BM630VT9ARVFZPC", workspaceName: "模型开发 Workspace" },
+  { workspaceId: "0000000000AE0NC0V5T424KK86", workspaceName: "风险验证 Workspace" },
+];
+
+function readStoredContext(): Partial<{
+  userId: string;
+  workspaceId: string;
+}> {
+  if (typeof window === "undefined") return {};
+  try {
+    return JSON.parse(
+      window.localStorage.getItem("model-platform-demo-context") ?? "{}",
+    ) as Partial<{ userId: string; workspaceId: string }>;
+  } catch {
+    return {};
+  }
+}
+
+const storedContext = readStoredContext();
+const initialUser = demoUsers.find((item) => item.userId === storedContext.userId)
+  ?? demoUsers[0];
+const initialWorkspace = demoWorkspaces.find(
+  (item) => item.workspaceId === storedContext.workspaceId,
+) ?? demoWorkspaces[0];
+
+export const demoContext = {
+  ...initialUser,
+  ...initialWorkspace,
+};
+
+export function setDemoContext(input: {
+  user?: DemoUser;
+  workspace?: DemoWorkspace;
+}): void {
+  if (input.user) Object.assign(demoContext, input.user);
+  if (input.workspace) Object.assign(demoContext, input.workspace);
+  if (typeof window !== "undefined") {
+    window.localStorage.setItem("model-platform-demo-context", JSON.stringify({
+      userId: demoContext.userId,
+      workspaceId: demoContext.workspaceId,
+    }));
+  }
+}
+
+export type ScriptType = "python" | "notebook";
+export type Visibility = "private" | "workspace" | "public";
+
+export type Employee = {
+  user_id: string;
+  username: string;
+  display_name: string;
+  email: string | null;
+  status: "active" | "disabled" | "locked";
+  role_code: "admin" | "developer";
+  role_name: string;
+  created_at: string;
+};
+
+export type ScriptItem = {
+  script_id: string;
+  workspace_id: string;
+  current_object_id: string;
+  owner_user_id: string;
+  script_name: string;
+  script_type: ScriptType;
+  visibility: Visibility;
+  status: string;
+  relative_path: string;
+  content_hash: string;
+  size_bytes: number;
+  created_at: string;
+  updated_at: string;
+};
+
+export type WorkspaceDirectory = {
+  path: string;
+  name: string;
+  parent_path: string;
+};
+
+type ApiEnvelope<T> = {
+  request_id: string;
+  data: T;
+  meta: Record<string, unknown>;
+};
+
+type ApiErrorEnvelope = {
+  detail?: string | {
+    code?: string;
+    message?: string;
+  };
+  error?: {
+    code?: string;
+    message?: string;
+    details?: {
+      editor_name?: string;
+      lease_expires_at?: string;
+    };
+  };
+};
+
+export class ApiRequestError extends Error {
+  readonly status: number;
+  readonly code?: string;
+
+  constructor(message: string, status: number, code?: string) {
+    super(message);
+    this.name = "ApiRequestError";
+    this.status = status;
+    this.code = code;
+  }
+}
+
+async function apiRequest<T>(
+  path: string,
+  init: RequestInit = {},
+): Promise<T> {
+  const response = await fetch(path, {
+    ...init,
+    credentials: "same-origin",
+    headers: {
+      "X-User-ID": demoContext.userId,
+      "X-Workspace-ID": demoContext.workspaceId,
+      "X-Request-ID": crypto.randomUUID().replaceAll("-", ""),
+      ...(init.body ? { "Content-Type": "application/json" } : {}),
+      ...init.headers,
+    },
+  });
+
+  const payload = (await response.json().catch(() => ({}))) as
+    | ApiEnvelope<T>
+    | ApiErrorEnvelope;
+  if (!response.ok) {
+    const error = payload as ApiErrorEnvelope;
+    const detailMessage = typeof error.detail === "string"
+      ? error.detail
+      : error.detail?.message;
+    const editor = error.error?.details?.editor_name;
+    throw new ApiRequestError(
+      (editor ? `${error.error?.message ?? "文件正在编辑"}（${editor}）` : undefined)
+        ?? error.error?.message
+        ?? detailMessage
+        ?? `请求失败（HTTP ${response.status}）`,
+      response.status,
+      typeof error.detail === "object"
+        ? error.detail?.code
+        : error.error?.code,
+    );
+  }
+  return (payload as ApiEnvelope<T>).data;
+}
+
+export async function listScripts(): Promise<ScriptItem[]> {
+  return apiRequest<ScriptItem[]>("/api/v1/scripts");
+}
+
+function initialContent(scriptType: ScriptType): string {
+  if (scriptType === "python") {
+    return [
+      '"""模型实验开发平台构建脚本。"""',
+      "",
+      "",
+      "def main() -> None:",
+      '    print("Hello, Model Platform!")',
+      "",
+      "",
+      'if __name__ == "__main__":',
+      "    main()",
+      "",
+    ].join("\n");
+  }
+
+  return JSON.stringify(
+    {
+      cells: [
+        {
+          cell_type: "markdown",
+          metadata: {},
+          source: ["# 新建模型实验\\n", "在这里开始数据探索与模型构建。"],
+        },
+        {
+          cell_type: "code",
+          execution_count: null,
+          metadata: {},
+          outputs: [],
+          source: ["print('Hello, Model Platform!')\\n"],
+        },
+      ],
+      metadata: {
+        kernelspec: {
+          display_name: "Python 3",
+          language: "python",
+          name: "python3",
+        },
+        language_info: {
+          name: "python",
+          version: "3.12",
+        },
+      },
+      nbformat: 4,
+      nbformat_minor: 5,
+    },
+    null,
+    2,
+  );
+}
+
+export async function createScript(input: {
+  name: string;
+  scriptType: ScriptType;
+  visibility: Visibility;
+  parentPath?: string | null;
+}): Promise<ScriptItem> {
+  return apiRequest<ScriptItem>("/api/v1/scripts", {
+    method: "POST",
+    body: JSON.stringify({
+      script_name: input.name.trim(),
+      script_type: input.scriptType,
+      visibility: input.visibility,
+      content: initialContent(input.scriptType),
+      parent_path: input.parentPath,
+    }),
+  });
+}
+
+export async function uploadScript(
+  file: File,
+  parentPath = "",
+  visibility: Visibility = "workspace",
+): Promise<ScriptItem> {
+  const parameters = new URLSearchParams({
+    file_name: file.name,
+    parent_path: parentPath,
+    visibility,
+  });
+  return apiRequest<ScriptItem>(
+    `/api/v1/scripts/upload?${parameters.toString()}`,
+    {
+      method: "POST",
+      headers: { "Content-Type": "application/octet-stream" },
+      body: file,
+    },
+  );
+}
+
+export async function deleteScript(
+  scriptId: string,
+): Promise<{ script_id: string; status: string; versions_preserved: boolean }> {
+  return apiRequest(`/api/v1/scripts/${scriptId}`, { method: "DELETE" });
+}
+
+export async function listWorkspaceDirectories(): Promise<
+  WorkspaceDirectory[]
+> {
+  const data = await apiRequest<{ directories: WorkspaceDirectory[] }>(
+    "/api/v1/workspace-tree",
+  );
+  return data.directories;
+}
+
+export async function createWorkspaceDirectory(
+  directoryName: string,
+  parentPath = "",
+): Promise<WorkspaceDirectory> {
+  return apiRequest<WorkspaceDirectory>("/api/v1/workspace-directories", {
+    method: "POST",
+    body: JSON.stringify({
+      directory_name: directoryName,
+      parent_path: parentPath,
+    }),
+  });
+}
+
+export async function deleteWorkspaceDirectory(
+  path: string,
+): Promise<{
+  path: string;
+  status: string;
+  deleted_scripts: number;
+  versions_preserved: boolean;
+}> {
+  const parameters = new URLSearchParams({ path });
+  return apiRequest(`/api/v1/workspace-directories?${parameters.toString()}`, {
+    method: "DELETE",
+  });
+}
+
+export type FileLockSession = {
+  edit_session_id: string;
+  workspace_id: string;
+  storage_object_id: string;
+  user_id: string;
+  session_status: "active" | "closed" | "expired";
+  lease_seconds: number;
+  heartbeat_interval_seconds: number;
+  expires_at: string;
+  runtime_id: string;
+  jupyter_session_id: string;
+  jupyter_url?: string;
+  relative_path?: string;
+  lock_token?: string;
+};
+
+export type ActiveEditSession = FileLockSession & {
+  script_id: string;
+  script_name: string;
+  lock_token: string;
+  ticket_expires_at?: string;
+};
+
+export type JupyterAccessTicket = {
+  edit_session_id: string;
+  jupyter_url: string;
+  expires_at: string;
+};
+
+export type StableVersion = {
+  versions_id: string;
+  workspace_id: string;
+  script_id: string;
+  source_object_id: string;
+  artifact_object_id: string;
+  version_no: number;
+  version_label: string;
+  source_path: string;
+  artifact_path: string;
+  content_hash: string;
+  file_size_bytes: number;
+  visibility: Visibility;
+  release_note: string | null;
+  created_by: string;
+  created_at: string;
+};
+
+export async function acquireFileLock(
+  script: ScriptItem,
+): Promise<ActiveEditSession> {
+  const session = await apiRequest<FileLockSession>(
+    `/api/v1/files/${script.current_object_id}/lock`,
+    { method: "POST" },
+  );
+  if (!session.lock_token) {
+    throw new Error("加锁成功响应缺少 lock_token");
+  }
+  return {
+    ...session,
+    script_id: script.script_id,
+    script_name: script.script_name,
+    lock_token: session.lock_token,
+  };
+}
+
+export async function heartbeatFileLock(
+  session: ActiveEditSession,
+): Promise<FileLockSession> {
+  return apiRequest<FileLockSession>(
+    `/api/v1/file-locks/${session.edit_session_id}/heartbeat`,
+    {
+      method: "POST",
+      body: JSON.stringify({ lock_token: session.lock_token }),
+    },
+  );
+}
+
+export async function releaseFileLock(
+  session: ActiveEditSession,
+): Promise<FileLockSession> {
+  return apiRequest<FileLockSession>(
+    `/api/v1/file-locks/${session.edit_session_id}`,
+    {
+      method: "DELETE",
+      body: JSON.stringify({ lock_token: session.lock_token }),
+    },
+  );
+}
+
+export function releaseFileLockOnUnload(session: ActiveEditSession): void {
+  void fetch(`/api/v1/file-locks/${session.edit_session_id}`, {
+    method: "DELETE",
+    credentials: "same-origin",
+    keepalive: true,
+    headers: {
+      "Content-Type": "application/json",
+      "X-User-ID": demoContext.userId,
+      "X-Workspace-ID": demoContext.workspaceId,
+      "X-Request-ID": crypto.randomUUID().replaceAll("-", ""),
+    },
+    body: JSON.stringify({ lock_token: session.lock_token }),
+  });
+}
+
+export async function createJupyterAccessTicket(
+  session: ActiveEditSession,
+): Promise<JupyterAccessTicket> {
+  return apiRequest<JupyterAccessTicket>("/api/v1/jupyter/access-tickets", {
+    method: "POST",
+    body: JSON.stringify({
+      edit_session_id: session.edit_session_id,
+      lock_token: session.lock_token,
+    }),
+  });
+}
+
+export async function listScriptVersions(
+  scriptId: string,
+): Promise<StableVersion[]> {
+  return apiRequest<StableVersion[]>(`/api/v1/scripts/${scriptId}/versions`);
+}
+
+export async function publishScriptVersion(input: {
+  script: ScriptItem;
+  releaseNote: string;
+  visibility: Visibility;
+}): Promise<StableVersion> {
+  return apiRequest<StableVersion>(
+    `/api/v1/scripts/${input.script.script_id}/versions`,
+    {
+      method: "POST",
+      body: JSON.stringify({
+        source_object_id: input.script.current_object_id,
+        release_note: input.releaseNote.trim() || null,
+        visibility: input.visibility,
+      }),
+    },
+  );
+}
+
+export type ScheduleArtifact = {
+  versions_id: string;
+  version_label: string;
+  script_id: string;
+  script_name: string;
+  script_type: ScriptType;
+  content_hash: string;
+  file_size_bytes: number;
+  visibility: Visibility;
+  created_by: string;
+  created_at: string;
+};
+
+export type ScheduleNode = {
+  node_id: string;
+  schedule_id: string;
+  node_key: string;
+  node_name: string;
+  versions_id: string;
+  timeout_seconds: number;
+  retry_count: number;
+  retry_interval_sec: number;
+  position_x: number;
+  position_y: number;
+  arguments_json: Record<string, unknown>;
+  env_refs_json: Record<string, string>;
+  created_at: string;
+  updated_at: string;
+  version: {
+    versions_id: string;
+    version_label: string;
+    script_id: string;
+    script_name: string;
+    script_type: ScriptType;
+    content_hash: string;
+    created_at: string;
+  };
+};
+
+export type ScheduleEdge = {
+  edge_id: string;
+  schedule_id: string;
+  source_node_id: string;
+  target_node_id: string;
+  condition_expr: string | null;
+  created_at: string;
+};
+
+export type DagValidation = {
+  valid: boolean;
+  node_count: number;
+  edge_count: number;
+  root_node_ids: string[];
+  leaf_node_ids: string[];
+  topological_order: string[];
+  errors: Array<{
+    code: string;
+    message: string;
+    edge_id?: string;
+    node_ids?: string[];
+  }>;
+};
+
+export type Schedule = {
+  schedule_id: string;
+  workspace_id: string;
+  schedule_name: string;
+  description: string | null;
+  trigger_type: "manual" | "cron" | "api";
+  cron_expression: string | null;
+  timezone: string;
+  enabled: boolean;
+  workflow_version: number;
+  max_concurrency: number;
+  failure_policy: "stop" | "continue";
+  last_run_at: string | null;
+  next_run_at: string | null;
+  created_by: string;
+  updated_by: string;
+  created_at: string;
+  updated_at: string;
+  node_count: number;
+  edge_count: number;
+  nodes: ScheduleNode[];
+  edges: ScheduleEdge[];
+  dag_validation: DagValidation;
+};
+
+export type CronPreview = {
+  cron_expression: string;
+  timezone: string;
+  base_time: string;
+  occurrences: Array<{
+    local_time: string;
+    utc_time: string;
+  }>;
+};
+
+export type ScheduleRunStatus =
+  | "queued"
+  | "running"
+  | "succeeded"
+  | "failed"
+  | "cancelled"
+  | "timed_out";
+
+export type ScheduleNodeRunStatus =
+  | ScheduleRunStatus
+  | "skipped";
+
+export type ScheduleRunSummary = {
+  run_id: string;
+  schedule_id: string;
+  workspace_id: string;
+  workflow_version: number;
+  trigger_type: "manual" | "cron" | "api" | "retry";
+  run_status: ScheduleRunStatus;
+  state_version: number;
+  queued_at: string;
+  started_at: string | null;
+  finished_at: string | null;
+  duration_ms: number | null;
+  error_code: string | null;
+  error_message: string | null;
+  logs_object_id: string | null;
+  result_object_id: string | null;
+};
+
+export type ScheduleNodeRun = {
+  node_run_id: string;
+  run_id: string;
+  node_id: string;
+  versions_id: string;
+  attempt_no: number;
+  node_status: ScheduleNodeRunStatus;
+  state_version: number;
+  started_at: string | null;
+  finished_at: string | null;
+  duration_ms: number | null;
+  exit_code: number | null;
+  message: string | null;
+  logs_object_id: string | null;
+  result_object_id: string | null;
+};
+
+export type ScheduleRunDetail = ScheduleRunSummary & {
+  node_runs: ScheduleNodeRun[];
+};
+
+export async function listSchedules(): Promise<Schedule[]> {
+  return apiRequest<Schedule[]>("/api/v1/schedules");
+}
+
+export async function getSchedule(scheduleId: string): Promise<Schedule> {
+  return apiRequest<Schedule>(`/api/v1/schedules/${scheduleId}`);
+}
+
+export async function createSchedule(input: {
+  schedule_name: string;
+  description?: string | null;
+  trigger_type?: "manual" | "cron" | "api";
+  cron_expression?: string | null;
+  timezone?: string;
+  enabled?: boolean;
+  max_concurrency?: number;
+  failure_policy?: "stop" | "continue";
+}): Promise<Schedule> {
+  return apiRequest<Schedule>("/api/v1/schedules", {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function updateSchedule(
+  scheduleId: string,
+  input: {
+    workflow_version: number;
+    schedule_name?: string;
+    description?: string | null;
+    trigger_type?: "manual" | "cron" | "api";
+    cron_expression?: string | null;
+    timezone?: string;
+    enabled?: boolean;
+    max_concurrency?: number;
+    failure_policy?: "stop" | "continue";
+  },
+): Promise<Schedule> {
+  return apiRequest<Schedule>(`/api/v1/schedules/${scheduleId}`, {
+    method: "PATCH",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function deleteSchedule(
+  scheduleId: string,
+  workflowVersion: number,
+): Promise<{ schedule_id: string; deleted: boolean; workflow_version: number }> {
+  return apiRequest(`/api/v1/schedules/${scheduleId}`, {
+    method: "DELETE",
+    body: JSON.stringify({ workflow_version: workflowVersion }),
+  });
+}
+
+export async function listScheduleArtifacts(): Promise<ScheduleArtifact[]> {
+  return apiRequest<ScheduleArtifact[]>("/api/v1/schedule-artifacts");
+}
+
+export async function hideScheduleArtifact(
+  versionsId: string,
+): Promise<{
+  versions_id: string;
+  deleted: boolean;
+  artifact_preserved: boolean;
+}> {
+  return apiRequest(`/api/v1/versions/${versionsId}`, {
+    method: "DELETE",
+  });
+}
+
+export async function listEmployees(): Promise<Employee[]> {
+  return apiRequest<Employee[]>("/api/v1/admin/employees");
+}
+
+export async function createEmployee(input: {
+  username: string;
+  display_name: string;
+  email?: string | null;
+  role_code: "admin" | "developer";
+}): Promise<Employee> {
+  return apiRequest<Employee>("/api/v1/admin/employees", {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function updateEmployee(
+  userId: string,
+  input: {
+    display_name?: string;
+    email?: string | null;
+    role_code?: "admin" | "developer";
+    status?: "active" | "disabled" | "locked";
+  },
+): Promise<Employee> {
+  return apiRequest<Employee>(`/api/v1/admin/employees/${userId}`, {
+    method: "PATCH",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function deleteEmployee(
+  userId: string,
+): Promise<{ user_id: string; deleted: boolean }> {
+  return apiRequest(`/api/v1/admin/employees/${userId}`, {
+    method: "DELETE",
+  });
+}
+
+export async function createScheduleNode(
+  scheduleId: string,
+  input: {
+    workflow_version: number;
+    node_key: string;
+    node_name: string;
+    versions_id: string;
+    timeout_seconds?: number;
+    retry_count?: number;
+    retry_interval_sec?: number;
+    position_x?: number;
+    position_y?: number;
+    arguments_json?: Record<string, unknown>;
+    env_refs_json?: Record<string, string>;
+  },
+): Promise<Schedule> {
+  return apiRequest<Schedule>(`/api/v1/schedules/${scheduleId}/nodes`, {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function updateScheduleNode(
+  scheduleId: string,
+  nodeId: string,
+  input: {
+    workflow_version: number;
+    node_name?: string;
+    versions_id?: string;
+    timeout_seconds?: number;
+    retry_count?: number;
+    retry_interval_sec?: number;
+    position_x?: number;
+    position_y?: number;
+    arguments_json?: Record<string, unknown>;
+    env_refs_json?: Record<string, string>;
+  },
+): Promise<Schedule> {
+  return apiRequest<Schedule>(
+    `/api/v1/schedules/${scheduleId}/nodes/${nodeId}`,
+    {
+      method: "PUT",
+      body: JSON.stringify(input),
+    },
+  );
+}
+
+export async function deleteScheduleNode(
+  scheduleId: string,
+  nodeId: string,
+  workflowVersion: number,
+): Promise<Schedule> {
+  return apiRequest<Schedule>(
+    `/api/v1/schedules/${scheduleId}/nodes/${nodeId}`,
+    {
+      method: "DELETE",
+      body: JSON.stringify({ workflow_version: workflowVersion }),
+    },
+  );
+}
+
+export async function createScheduleEdge(
+  scheduleId: string,
+  input: {
+    workflow_version: number;
+    source_node_id: string;
+    target_node_id: string;
+    condition_expr?: string | null;
+  },
+): Promise<Schedule> {
+  return apiRequest<Schedule>(`/api/v1/schedules/${scheduleId}/edges`, {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function deleteScheduleEdge(
+  scheduleId: string,
+  edgeId: string,
+  workflowVersion: number,
+): Promise<Schedule> {
+  return apiRequest<Schedule>(
+    `/api/v1/schedules/${scheduleId}/edges/${edgeId}`,
+    {
+      method: "DELETE",
+      body: JSON.stringify({ workflow_version: workflowVersion }),
+    },
+  );
+}
+
+export async function validateSchedule(
+  scheduleId: string,
+): Promise<DagValidation & {
+  schedule_id: string;
+  workflow_version: number;
+}> {
+  return apiRequest(`/api/v1/schedules/${scheduleId}/validate`, {
+    method: "POST",
+  });
+}
+
+export async function previewCron(input: {
+  cron_expression: string;
+  timezone: string;
+  count?: number;
+  base_time?: string;
+}): Promise<CronPreview> {
+  return apiRequest<CronPreview>("/api/v1/cron/preview", {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function runScheduleNow(
+  scheduleId: string,
+): Promise<ScheduleRunDetail> {
+  return apiRequest<ScheduleRunDetail>(
+    `/api/v1/schedules/${scheduleId}/run`,
+    {
+      method: "POST",
+      headers: {
+        "Idempotency-Key": crypto.randomUUID(),
+      },
+      body: JSON.stringify({ reason: "manual_run" }),
+    },
+  );
+}
+
+export async function listScheduleRuns(input: {
+  scheduleId?: string;
+  status?: ScheduleRunStatus;
+  limit?: number;
+} = {}): Promise<ScheduleRunSummary[]> {
+  const query = new URLSearchParams();
+  if (input.scheduleId) query.set("schedule_id", input.scheduleId);
+  if (input.status) query.set("status", input.status);
+  query.set("limit", String(input.limit ?? 20));
+  return apiRequest<ScheduleRunSummary[]>(
+    `/api/v1/schedule-runs?${query.toString()}`,
+  );
+}
+
+export async function getScheduleRun(
+  runId: string,
+): Promise<ScheduleRunDetail> {
+  return apiRequest<ScheduleRunDetail>(`/api/v1/schedule-runs/${runId}`);
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/admin.css b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/admin.css
new file mode 100644
index 0000000..bbc9519
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/admin.css
@@ -0,0 +1 @@
+.dashboard-page,.admin-page{height:100%;padding:24px;overflow:auto;background:#f3f6f9}.dashboard-hero{display:flex;align-items:center;justify-content:space-between;padding:34px;border-radius:12px;color:#fff;background:linear-gradient(125deg,#0b3d69,#1978d4);box-shadow:0 12px 30px rgb(19 80 137/18%)}.dashboard-hero span{font-size:10px;letter-spacing:.12em;opacity:.82}.dashboard-hero h2{margin:8px 0 5px;font-size:25px}.dashboard-hero p{margin:0;font-size:12px;opacity:.88}.dashboard-hero__badge{padding:8px 12px;border-radius:20px;background:rgb(255 255 255/16%)}.dashboard-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.dashboard-metrics article{display:flex;align-items:center;gap:14px;padding:20px;border:1px solid #e0e8ef;border-radius:9px;background:#fff}.dashboard-metrics svg{color:#1978d4}.dashboard-metrics span{display:flex;flex-direction:column}.dashboard-metrics b{color:#20364c;font-size:21px}.dashboard-metrics small{color:#8796a6}.dashboard-actions{display:flex;gap:12px;margin-top:18px}.dashboard-actions button{display:flex;align-items:center;gap:8px;padding:13px 18px;border:1px solid #d8e4ef;border-radius:7px;color:#346587;background:#fff;cursor:pointer}.admin-page__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px;padding:20px 22px;border:1px solid #dee7ef;border-radius:9px;background:#fff}.admin-page__header span{color:#1978d4;font-size:10px;font-weight:800}.admin-page__header h2{margin:4px 0;color:#20364c}.admin-page__header p{margin:0;color:#8a99a8;font-size:11px}.admin-readonly{margin-bottom:12px;padding:10px 13px;border:1px solid #f1d79c;border-radius:6px;color:#8a6416;background:#fff8e8;font-size:11px}.employee-table{overflow:hidden;border:1px solid #dfe7ee;border-radius:9px;background:#fff}.employee-table__head,.employee-row{display:grid;grid-template-columns:1.5fr 1fr .7fr .65fr .8fr;align-items:center;gap:12px;padding:12px 17px}.employee-table__head{color:#748598;background:#f5f8fb;font-size:10px;font-weight:700}.employee-row{min-height:64px;border-top:1px solid #edf1f5;color:#44576a;font-size:11px}.employee-name{display:flex;align-items:center;gap:10px}.employee-name .avatar{display:grid;width:32px;height:32px;place-items:center}.employee-name>span{display:flex;min-width:0;flex-direction:column}.employee-name strong{color:#23384e}.employee-name small{margin-top:3px;color:#93a0ae}.employee-row code{color:#60758b}.role-pill,.status-pill{width:max-content;padding:4px 8px;border-radius:12px}.role-pill{color:#1d6ab3;background:#eaf4ff}.role-pill.is-admin{color:#87580f;background:#fff2d6}.status-pill{color:#138657;background:#e8f8f1}.status-pill.is-disabled,.status-pill.is-locked{color:#a64b4b;background:#ffeded}.employee-actions{display:flex;gap:6px}.employee-actions button{padding:5px 9px;border:1px solid #d9e3ec;border-radius:4px;color:#4c6c88;background:#fff;cursor:pointer}.employee-actions button.is-danger{color:#c14a4a}.employee-actions button:disabled{cursor:not-allowed;opacity:.45}.admin-empty{padding:25px;text-align:center;color:#8796a6}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/dashboard.css b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/dashboard.css
new file mode 100644
index 0000000..8331a96
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/dashboard.css
@@ -0,0 +1,185 @@
+.dashboard-grid {
+  display: grid;
+  grid-template-columns: minmax(0, 1.6fr) minmax(310px, .9fr);
+  gap: 14px;
+  margin-top: 18px;
+  padding-bottom: 25px;
+}
+.dashboard-panel {
+  border: 1px solid #dfe7ee;
+  border-radius: 10px;
+  background: #fff;
+  box-shadow: 0 5px 16px rgb(33 65 97 / 5%);
+}
+.dashboard-panel > header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 17px 20px;
+  border-bottom: 1px solid #edf1f5;
+}
+.dashboard-panel header span {
+  color: #7890a6;
+  font-size: 9px;
+  font-weight: 800;
+  letter-spacing: .09em;
+}
+.dashboard-panel h3 {
+  margin: 4px 0 0;
+  color: #263b50;
+  font-size: 14px;
+}
+.dashboard-panel--trend > header > b {
+  padding: 5px 9px;
+  border-radius: 13px;
+  color: #16855a;
+  background: #e8f8f1;
+  font-size: 10px;
+}
+.trend-chart {
+  display: flex;
+  height: 190px;
+  align-items: flex-end;
+  gap: 18px;
+  padding: 26px 28px 17px;
+  background: repeating-linear-gradient(to bottom, #fff 0, #fff 44px, #eef3f7 45px);
+}
+.trend-column {
+  display: flex;
+  height: 100%;
+  flex: 1;
+  align-items: center;
+  justify-content: flex-end;
+  flex-direction: column;
+  gap: 5px;
+}
+.trend-column i {
+  display: block;
+  width: min(36px, 72%);
+  min-height: 12px;
+  border-radius: 5px 5px 2px 2px;
+  background: linear-gradient(#49a0eb, #207bd1);
+  box-shadow: 0 4px 9px rgb(32 123 209 / 18%);
+}
+.trend-column__value, .trend-column small {
+  color: #7890a3;
+  font-size: 9px;
+}
+.dashboard-panel--trend footer {
+  display: flex;
+  justify-content: center;
+  gap: 22px;
+  padding: 10px;
+  color: #708397;
+  font-size: 9px;
+}
+.dashboard-panel footer span {
+  display: flex;
+  align-items: center;
+  gap: 5px;
+}
+.legend-dot {
+  display: inline-block;
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+}
+.legend-dot.is-success { background: #27b87c; }
+.legend-dot.is-failed { background: #ed7777; }
+.legend-dot.is-notebook { background: #318de0; }
+.legend-dot.is-python { background: #72c9b0; }
+.legend-dot.is-version { background: #f3b75c; }
+.donut-layout {
+  display: flex;
+  min-height: 226px;
+  align-items: center;
+  justify-content: center;
+  gap: 28px;
+  padding: 20px;
+}
+.donut-chart {
+  position: relative;
+  display: grid;
+  width: 128px;
+  height: 128px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 50%;
+  background: conic-gradient(#318de0 0 67%, #72c9b0 67% 86%, #f3b75c 86% 100%);
+}
+.donut-chart::after {
+  position: absolute;
+  width: 78px;
+  height: 78px;
+  border-radius: 50%;
+  background: #fff;
+  content: "";
+}
+.donut-chart span {
+  z-index: 1;
+  display: flex;
+  align-items: center;
+  flex-direction: column;
+}
+.donut-chart b { color: #273d53; font-size: 20px; }
+.donut-chart small { color: #8a9aaa; font-size: 8px; }
+.donut-legend { display: flex; flex-direction: column; gap: 15px; }
+.donut-legend > span {
+  display: grid;
+  grid-template-columns: 8px 1fr;
+  align-items: center;
+  column-gap: 7px;
+}
+.donut-legend b { color: #40566c; font-size: 10px; }
+.donut-legend small { grid-column: 2; color: #8a9baa; font-size: 8px; }
+.dashboard-panel--activity { grid-column: 1 / -1; }
+.dashboard-panel--activity > header > button {
+  border: 0;
+  color: #257bcb;
+  background: transparent;
+  font-size: 10px;
+}
+.activity-table__head, .activity-row {
+  display: grid;
+  grid-template-columns: 2fr .7fr .55fr .5fr;
+  align-items: center;
+  gap: 15px;
+  padding: 11px 20px;
+}
+.activity-table__head {
+  color: #8595a5;
+  background: #f7f9fb;
+  font-size: 9px;
+  font-weight: 700;
+}
+.activity-row {
+  border-top: 1px solid #edf1f5;
+  color: #607488;
+  font-size: 10px;
+}
+.activity-row > span:first-child {
+  display: flex;
+  align-items: center;
+  gap: 9px;
+  color: #344c63;
+}
+.activity-icon {
+  display: grid;
+  width: 25px;
+  height: 25px;
+  place-items: center;
+  border-radius: 6px;
+  color: #277fcc;
+  background: #eaf4ff;
+}
+.activity-row b {
+  padding: 3px 7px;
+  border-radius: 10px;
+  color: #16855a;
+  background: #e9f8f2;
+  font-size: 9px;
+}
+@media (max-width: 1200px) {
+  .dashboard-grid { grid-template-columns: 1fr; }
+  .dashboard-panel--activity { grid-column: auto; }
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/platform.css b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/platform.css
new file mode 100644
index 0000000..de9e162
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/platform.css
@@ -0,0 +1,1868 @@
+:root {
+  font-family:
+    Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system,
+    BlinkMacSystemFont, "Segoe UI", sans-serif;
+  color: #1d2a3b;
+  background: #eef2f6;
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+body {
+  min-width: 1120px;
+  min-height: 100vh;
+  margin: 0;
+  overflow: hidden;
+}
+
+button,
+input,
+select {
+  font: inherit;
+}
+
+button {
+  color: inherit;
+}
+
+.app-shell {
+  display: flex;
+  min-height: 100vh;
+  background: #eef2f6;
+}
+
+.sidebar {
+  position: relative;
+  z-index: 3;
+  display: flex;
+  width: 210px;
+  min-width: 210px;
+  flex-direction: column;
+  min-height: 100vh;
+  color: #c9d7e7;
+  background:
+    radial-gradient(circle at 10% 1%, rgb(28 105 186 / 25%), transparent 27%),
+    #09233f;
+  box-shadow: 5px 0 18px rgb(19 47 77 / 9%);
+}
+
+.brand {
+  display: flex;
+  height: 70px;
+  align-items: center;
+  gap: 10px;
+  padding: 0 17px;
+  border-bottom: 1px solid rgb(255 255 255 / 8%);
+  color: #fff;
+}
+
+.brand__mark {
+  display: grid;
+  width: 36px;
+  height: 36px;
+  flex: 0 0 auto;
+  place-items: center;
+  color: #5ca9ff;
+}
+
+.brand__name {
+  white-space: nowrap;
+  font-size: 15px;
+  font-weight: 700;
+  letter-spacing: .01em;
+}
+
+.navigation {
+  display: flex;
+  flex-direction: column;
+  gap: 7px;
+  padding: 19px 9px;
+}
+
+.nav-item,
+.sidebar-footer {
+  display: flex;
+  height: 48px;
+  align-items: center;
+  gap: 13px;
+  padding: 0 17px;
+  border: 0;
+  border-radius: 6px;
+  color: #b9cade;
+  background: transparent;
+  cursor: pointer;
+  font-size: 14px;
+  text-align: left;
+  transition: .18s ease;
+}
+
+.nav-item:hover,
+.sidebar-footer:hover {
+  color: #fff;
+  background: rgb(255 255 255 / 6%);
+}
+
+.nav-item--active {
+  color: #fff;
+  background: linear-gradient(135deg, #1479e8, #1267ca);
+  box-shadow: 0 7px 18px rgb(7 96 193 / 26%);
+}
+
+.sidebar-footer {
+  width: calc(100% - 18px);
+  margin: auto 9px 17px;
+}
+
+.main-area {
+  display: flex;
+  min-width: 0;
+  flex: 1;
+  flex-direction: column;
+  height: 100vh;
+}
+
+.topbar {
+  position: relative;
+  z-index: 2;
+  display: flex;
+  height: 70px;
+  min-height: 70px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 22px;
+  border-bottom: 1px solid #dfe6ee;
+  background: #fff;
+}
+
+.page-title,
+.topbar__actions,
+.workspace-switcher,
+.user-menu {
+  display: flex;
+  align-items: center;
+}
+
+.page-title {
+  gap: 9px;
+}
+
+.page-title h1 {
+  margin: 1px 0 0;
+  color: #14243a;
+  font-size: 18px;
+  line-height: 1.1;
+}
+
+.page-title__eyebrow {
+  color: #94a2b3;
+  font-size: 10px;
+  font-weight: 650;
+  letter-spacing: .08em;
+  text-transform: uppercase;
+}
+
+.icon-button {
+  display: grid;
+  width: 34px;
+  height: 34px;
+  place-items: center;
+  border: 1px solid #dfe6ed;
+  border-radius: 7px;
+  background: #fff;
+  cursor: pointer;
+}
+
+.icon-button:hover {
+  border-color: #b9c9da;
+  background: #f7faff;
+}
+
+.icon-button--back {
+  width: 31px;
+  border-color: transparent;
+  color: #7b8999;
+  transform: rotate(180deg);
+}
+
+.topbar__actions {
+  gap: 14px;
+}
+
+.topbar-menu-wrap {
+  position: relative;
+}
+
+.topbar-dropdown {
+  position: absolute;
+  z-index: 50;
+  top: calc(100% + 7px);
+  right: 0;
+  width: 260px;
+  padding: 6px;
+  border: 1px solid #dce5ed;
+  border-radius: 8px;
+  background: #fff;
+  box-shadow: 0 14px 38px rgb(17 43 70 / 18%);
+}
+
+.topbar-dropdown--users {
+  width: 220px;
+}
+
+.topbar-dropdown > button {
+  display: flex;
+  width: 100%;
+  align-items: center;
+  gap: 10px;
+  padding: 9px 10px;
+  border: 0;
+  border-radius: 6px;
+  color: #40576d;
+  background: transparent;
+  text-align: left;
+  cursor: pointer;
+}
+
+.topbar-dropdown > button:hover,
+.topbar-dropdown > button.is-selected {
+  background: #edf6ff;
+}
+
+.topbar-dropdown > button > span:not(.avatar) {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.topbar-dropdown strong {
+  overflow: hidden;
+  color: #243a50;
+  font-size: 11px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.topbar-dropdown small {
+  color: #8797a7;
+  font-size: 9px;
+}
+
+.api-state {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+  color: #768597;
+  font-size: 12px;
+}
+
+.api-state__dot {
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+  background: #d05151;
+  box-shadow: 0 0 0 3px rgb(208 81 81 / 10%);
+}
+
+.api-state__dot.is-online {
+  background: #19b878;
+  box-shadow: 0 0 0 3px rgb(25 184 120 / 11%);
+}
+
+.workspace-switcher,
+.user-menu {
+  height: 46px;
+  gap: 9px;
+  padding: 0 11px;
+  border: 1px solid #e0e7ee;
+  border-radius: 8px;
+  background: #fff;
+  cursor: pointer;
+}
+
+.workspace-switcher:hover,
+.user-menu:hover {
+  border-color: #b9cce0;
+}
+
+.workspace-switcher__icon {
+  display: grid;
+  width: 30px;
+  height: 30px;
+  place-items: center;
+  border-radius: 7px;
+  color: #fff;
+  background: linear-gradient(145deg, #23aa73, #158d5d);
+}
+
+.workspace-switcher span:not(.workspace-switcher__icon),
+.user-menu__copy {
+  display: flex;
+  min-width: 155px;
+  flex-direction: column;
+  align-items: flex-start;
+}
+
+.workspace-switcher small,
+.user-menu small {
+  color: #97a3b1;
+  font-size: 10px;
+}
+
+.workspace-switcher strong,
+.user-menu strong {
+  max-width: 190px;
+  overflow: hidden;
+  color: #26384d;
+  font-size: 13px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.user-menu {
+  border-color: transparent;
+}
+
+.user-menu__copy {
+  min-width: 55px;
+}
+
+.avatar {
+  display: grid;
+  width: 34px;
+  height: 34px;
+  place-items: center;
+  border-radius: 50%;
+  color: #fff;
+  background: linear-gradient(145deg, #3b92ed, #1869c9);
+  font-size: 14px;
+  font-weight: 700;
+}
+
+.workspace-layout {
+  display: grid;
+  min-height: 0;
+  flex: 1;
+  grid-template-columns: 310px minmax(0, 1fr);
+  gap: 10px;
+  padding: 10px;
+}
+
+.explorer,
+.editor-area {
+  min-height: 0;
+  border: 1px solid #dce4ec;
+  border-radius: 7px;
+  background: #fff;
+  box-shadow: 0 2px 7px rgb(25 46 73 / 3%);
+}
+
+.explorer {
+  display: flex;
+  overflow: hidden;
+  flex-direction: column;
+}
+
+.explorer__header {
+  display: flex;
+  min-height: 64px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 14px;
+  border-bottom: 1px solid #e8edf2;
+}
+
+.explorer__header h2 {
+  margin: 0 0 2px;
+  color: #1d2d42;
+  font-size: 16px;
+}
+
+.explorer__header > div > span {
+  color: #9aa7b6;
+  font-size: 10px;
+}
+
+.explorer__actions {
+  display: flex;
+  align-items: center;
+  gap: 9px;
+}
+
+.text-button {
+  display: inline-flex;
+  align-items: center;
+  gap: 3px;
+  padding: 5px 1px;
+  border: 0;
+  color: #1474d4;
+  background: transparent;
+  cursor: pointer;
+  font-size: 12px;
+  font-weight: 600;
+}
+
+.text-button:hover {
+  color: #0d58a2;
+}
+
+.text-button:disabled {
+  cursor: wait;
+  opacity: .55;
+}
+
+.visually-hidden {
+  position: absolute !important;
+  width: 1px !important;
+  height: 1px !important;
+  overflow: hidden !important;
+  clip: rect(0 0 0 0) !important;
+  clip-path: inset(50%) !important;
+  white-space: nowrap !important;
+}
+
+.search-box {
+  display: flex;
+  height: 38px;
+  align-items: center;
+  gap: 7px;
+  margin: 11px 12px 7px;
+  padding: 0 9px;
+  border: 1px solid #dce5ed;
+  border-radius: 6px;
+  color: #95a2b1;
+  background: #fbfcfd;
+}
+
+.search-box:focus-within {
+  border-color: #6aa9e9;
+  box-shadow: 0 0 0 3px rgb(31 119 207 / 8%);
+}
+
+.search-box input {
+  min-width: 0;
+  flex: 1;
+  border: 0;
+  outline: 0;
+  color: #26384d;
+  background: transparent;
+  font-size: 12px;
+}
+
+.search-box input::placeholder {
+  color: #a7b2bf;
+}
+
+.search-box button {
+  display: grid;
+  width: 24px;
+  height: 24px;
+  place-items: center;
+  border: 0;
+  color: #8d9aaa;
+  background: transparent;
+  cursor: pointer;
+}
+
+.is-spinning svg {
+  animation: spin .7s linear infinite;
+}
+
+.tree-scroll {
+  min-height: 0;
+  flex: 1;
+  overflow-y: auto;
+  padding: 5px 7px 14px;
+}
+
+.tree-group {
+  margin-bottom: 7px;
+}
+
+.tree-group__title {
+  display: flex;
+  width: 100%;
+  height: 33px;
+  align-items: center;
+  gap: 6px;
+  padding: 0 7px;
+  border: 0;
+  color: #43556a;
+  background: transparent;
+  font-family: inherit;
+  font-size: 12px;
+  font-weight: 650;
+  text-align: left;
+  cursor: pointer;
+}
+
+.tree-group__title > svg:first-child {
+  color: #98a5b2;
+  transform: rotate(0);
+  transition: transform 0.15s ease;
+}
+
+.tree-group__title.is-open > svg:first-child {
+  transform: rotate(90deg);
+}
+
+.tree-group__title:hover {
+  background: #f4f8fc;
+}
+
+.tree-group__title > svg:nth-child(2) {
+  color: #eab434;
+  fill: #f7c84a;
+  stroke: #e0a828;
+}
+
+.tree-group__title em {
+  display: grid;
+  min-width: 19px;
+  height: 18px;
+  margin-left: auto;
+  place-items: center;
+  border-radius: 10px;
+  color: #778698;
+  background: #eef2f6;
+  font-size: 10px;
+  font-style: normal;
+}
+
+.tree-group__items {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  padding-left: 13px;
+}
+
+.directory-branch {
+  display: flex;
+  flex-direction: column;
+}
+
+.directory-row {
+  display: flex;
+  width: 100%;
+  height: 32px;
+  align-items: center;
+  gap: 6px;
+  padding-right: 9px;
+  border: 0;
+  border-radius: 5px;
+  color: #45586c;
+  background: transparent;
+  cursor: pointer;
+  text-align: left;
+}
+
+.directory-row:hover {
+  background: #f4f7fa;
+}
+
+.directory-row > svg {
+  flex: 0 0 auto;
+  color: #e2aa27;
+  fill: #f7c84a;
+}
+
+.directory-row strong {
+  overflow: hidden;
+  font-size: 11px;
+  font-weight: 650;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.directory-row__chevron {
+  display: grid;
+  flex: 0 0 auto;
+  place-items: center;
+  color: #94a2b1;
+  transition: transform .15s ease;
+}
+
+.directory-row__chevron.is-open {
+  transform: rotate(90deg);
+}
+
+.script-row {
+  display: flex;
+  width: 100%;
+  height: 47px;
+  align-items: center;
+  gap: 8px;
+  padding: 0 9px;
+  border: 1px solid transparent;
+  border-radius: 6px;
+  background: transparent;
+  cursor: pointer;
+  text-align: left;
+}
+
+.script-row:hover {
+  background: #f4f7fa;
+}
+
+.script-row--active {
+  border-color: #c6ddf4;
+  background: #eaf4ff;
+}
+
+.file-icon {
+  display: grid;
+  width: 25px;
+  height: 25px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 5px;
+}
+
+.file-icon--notebook {
+  color: #e15e50;
+  background: #fff0ed;
+}
+
+.file-icon--python {
+  color: #2e73c6;
+  background: #eaf3ff;
+}
+
+.script-row__copy {
+  display: flex;
+  min-width: 0;
+  flex: 1;
+  flex-direction: column;
+}
+
+.script-row__copy strong {
+  overflow: hidden;
+  color: #34475d;
+  font-size: 12px;
+  font-weight: 600;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.script-row__copy small {
+  margin-top: 2px;
+  color: #9ba8b7;
+  font-size: 9px;
+}
+
+.visibility-dot {
+  width: 6px;
+  height: 6px;
+  flex: 0 0 auto;
+  border-radius: 50%;
+  background: #1dbd7c;
+  box-shadow: 0 0 0 3px rgb(29 189 124 / 10%);
+}
+
+.tree-group__empty {
+  margin: 2px 0 7px 35px;
+  color: #a5b0bc;
+  font-size: 11px;
+}
+
+.tree-context-menu {
+  position: fixed;
+  z-index: 50;
+  display: flex;
+  width: 180px;
+  padding: 6px;
+  border: 1px solid #d9e2ea;
+  border-radius: 8px;
+  flex-direction: column;
+  background: #fff;
+  box-shadow: 0 14px 34px rgb(18 43 68 / 20%);
+}
+
+.tree-context-menu button {
+  display: flex;
+  height: 34px;
+  align-items: center;
+  gap: 9px;
+  padding: 0 9px;
+  border: 0;
+  border-radius: 5px;
+  color: #34475a;
+  background: transparent;
+  cursor: pointer;
+  font-size: 11px;
+  text-align: left;
+}
+
+.tree-context-menu button:hover {
+  color: #136dbd;
+  background: #eef6fd;
+}
+
+.tree-context-menu button.is-danger {
+  color: #c74848;
+}
+
+.tree-context-menu button.is-danger:hover {
+  background: #fff0f0;
+}
+
+.tree-context-menu__separator {
+  height: 1px;
+  margin: 5px 3px;
+  background: #e7ecf1;
+}
+
+.tree-empty {
+  display: flex;
+  align-items: center;
+  flex-direction: column;
+  padding: 34px 18px;
+  color: #97a4b4;
+  text-align: center;
+}
+
+.tree-empty__icon {
+  display: grid;
+  width: 46px;
+  height: 46px;
+  margin-bottom: 12px;
+  place-items: center;
+  border-radius: 13px;
+  color: #6796c5;
+  background: #eff6fd;
+}
+
+.tree-empty strong {
+  color: #637286;
+  font-size: 12px;
+}
+
+.tree-empty p {
+  margin: 6px 0 14px;
+  font-size: 10px;
+  line-height: 1.5;
+}
+
+.tree-empty button {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  padding: 7px 11px;
+  border: 1px solid #bcd6ee;
+  border-radius: 6px;
+  color: #176cc1;
+  background: #fff;
+  cursor: pointer;
+  font-size: 11px;
+}
+
+.tree-skeleton {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  padding: 15px 8px;
+}
+
+.tree-skeleton span {
+  height: 43px;
+  border-radius: 6px;
+  background: linear-gradient(90deg, #f2f5f8, #fafbfc, #f2f5f8);
+  background-size: 200% 100%;
+  animation: shimmer 1.3s infinite;
+}
+
+.editor-area {
+  display: flex;
+  overflow: hidden;
+  flex-direction: column;
+}
+
+.tabbar {
+  display: flex;
+  height: 43px;
+  min-height: 43px;
+  align-items: stretch;
+  border-bottom: 1px solid #e5ebf1;
+  background: #f7f9fb;
+}
+
+.editor-tab {
+  position: relative;
+  display: flex;
+  min-width: 190px;
+  max-width: 290px;
+  align-items: center;
+  gap: 8px;
+  padding: 0 11px;
+  border-right: 1px solid #e4eaf0;
+  color: #4b5c70;
+  background: #fff;
+  font-size: 12px;
+}
+
+.editor-tab--active::before {
+  position: absolute;
+  top: 0;
+  right: 0;
+  left: 0;
+  height: 2px;
+  background: #2381e5;
+  content: "";
+}
+
+.editor-tab > span:nth-child(2) {
+  overflow: hidden;
+  flex: 1;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.editor-tab button,
+.new-tab {
+  display: grid;
+  width: 25px;
+  height: 25px;
+  place-items: center;
+  border: 0;
+  color: #8e9baa;
+  background: transparent;
+  cursor: pointer;
+}
+
+.editor-tab button:hover,
+.new-tab:hover {
+  color: #43566c;
+  background: #edf1f5;
+}
+
+.new-tab {
+  align-self: center;
+  margin-left: 5px;
+  border-radius: 4px;
+}
+
+.editor-toolbar {
+  display: flex;
+  min-height: 53px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 14px;
+  border-bottom: 1px solid #e6ebf0;
+  background: #fff;
+}
+
+.editor-toolbar__path,
+.editor-toolbar__actions {
+  display: flex;
+  align-items: center;
+}
+
+.editor-toolbar__path {
+  min-width: 0;
+  gap: 7px;
+  color: #8794a3;
+  font-size: 11px;
+}
+
+.editor-toolbar__path strong {
+  overflow: hidden;
+  max-width: 300px;
+  color: #45576b;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.editor-toolbar__actions {
+  gap: 7px;
+}
+
+.editor-toolbar__actions button {
+  height: 31px;
+  padding: 0 11px;
+  border: 1px solid #d9e3ec;
+  border-radius: 5px;
+  color: #52708d;
+  background: #fff;
+  cursor: pointer;
+  font-size: 11px;
+}
+
+.editor-toolbar__actions button:hover {
+  border-color: #9dbbd8;
+  background: #f7fbff;
+}
+
+.editor-toolbar__actions button:disabled,
+.open-editor-button:disabled {
+  cursor: wait;
+  opacity: .7;
+}
+
+.editor-toolbar__actions .end-edit-button {
+  border-color: #e1b8b8;
+  color: #a34c4c;
+  background: #fff8f8;
+}
+
+.editor-toolbar__actions .release-button {
+  border-color: #e7c689;
+  color: #9b6a18;
+  background: #fffbf3;
+}
+
+.stage-badge {
+  display: inline-flex;
+  height: 29px;
+  align-items: center;
+  gap: 6px;
+  padding: 0 10px;
+  border-radius: 15px;
+  color: #16845c;
+  background: #eaf9f3;
+  font-size: 10px;
+}
+
+.stage-badge span {
+  width: 6px;
+  height: 6px;
+  border-radius: 50%;
+  background: #20bc7f;
+}
+
+.stage-badge.is-editing {
+  color: #126b9d;
+  background: #e9f5fd;
+}
+
+.stage-badge.is-editing span {
+  background: #2495d3;
+  box-shadow: 0 0 0 3px rgb(36 149 211 / 13%);
+  animation: lock-pulse 1.8s ease-in-out infinite;
+}
+
+.editor-canvas {
+  min-height: 0;
+  flex: 1;
+  overflow: auto;
+  background:
+    linear-gradient(rgb(255 255 255 / 82%), rgb(255 255 255 / 82%)),
+    radial-gradient(circle, #c9d8e7 1px, transparent 1px);
+  background-color: #f4f7fa;
+  background-size: auto, 18px 18px;
+}
+
+.editor-canvas.is-embedded {
+  overflow: hidden;
+  background: #fff;
+}
+
+.embedded-jupyter {
+  display: flex;
+  width: 100%;
+  height: 100%;
+  min-height: 0;
+  flex-direction: column;
+  background: #fff;
+}
+
+.embedded-jupyter__status {
+  display: flex;
+  min-height: 34px;
+  align-items: center;
+  gap: 18px;
+  padding: 0 14px;
+  border-bottom: 1px solid #dfe6ec;
+  color: #718195;
+  background: #f8fafc;
+  font-size: 9px;
+}
+
+.embedded-jupyter__status > span {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.embedded-jupyter__status > span:first-child {
+  color: #197b59;
+  font-weight: 650;
+}
+
+.embedded-jupyter__status i {
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+  background: #20b77d;
+  box-shadow: 0 0 0 3px rgb(32 183 125 / 12%);
+}
+
+.embedded-jupyter__status code {
+  margin-left: auto;
+  color: #72859a;
+  font-size: 9px;
+}
+
+.embedded-jupyter iframe {
+  width: 100%;
+  min-height: 0;
+  flex: 1;
+  border: 0;
+  background: #fff;
+}
+
+.editor-opening-state {
+  display: flex;
+  width: min(520px, calc(100% - 48px));
+  min-height: 260px;
+  align-items: center;
+  justify-content: center;
+  flex-direction: column;
+  margin: 64px auto;
+  padding: 36px;
+  border: 1px solid #dce5ed;
+  border-radius: 10px;
+  color: #66788d;
+  background: rgb(255 255 255 / 94%);
+  box-shadow: 0 12px 34px rgb(31 64 98 / 7%);
+  text-align: center;
+}
+
+.editor-opening-state__icon {
+  display: grid;
+  width: 54px;
+  height: 54px;
+  place-items: center;
+  margin-bottom: 16px;
+  border-radius: 50%;
+  color: #247bc5;
+  background: #edf6ff;
+}
+
+.editor-opening-state__icon .button-spinner {
+  width: 24px;
+  height: 24px;
+  border-width: 3px;
+}
+
+.editor-opening-state strong {
+  color: #1d344d;
+  font-size: 16px;
+}
+
+.editor-opening-state p {
+  max-width: 430px;
+  margin: 9px 0 0;
+  color: #7a8a9b;
+  font-size: 12px;
+  line-height: 1.7;
+  overflow-wrap: anywhere;
+}
+
+.editor-opening-state.has-error {
+  border-color: #f0cfcc;
+}
+
+.editor-opening-state.has-error .editor-opening-state__icon {
+  color: #c84f49;
+  background: #fff1f0;
+}
+
+.editor-opening-state .open-editor-button {
+  margin-top: 18px;
+}
+
+.script-overview {
+  width: min(1020px, calc(100% - 48px));
+  margin: 24px auto 38px;
+}
+
+.script-overview__header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 20px;
+  padding: 23px 26px;
+  border: 1px solid #dce5ed;
+  border-radius: 9px 9px 0 0;
+  background: #fff;
+}
+
+.section-kicker {
+  color: #2b7fca;
+  font-size: 9px;
+  font-weight: 800;
+  letter-spacing: .13em;
+}
+
+.script-overview__header h2 {
+  margin: 6px 0 4px;
+  color: #1b2d43;
+  font-size: 22px;
+}
+
+.script-overview__header p {
+  margin: 0;
+  color: #8997a6;
+  font-family: Consolas, "SFMono-Regular", monospace;
+  font-size: 10px;
+}
+
+.open-editor-button,
+.primary-button,
+.secondary-button {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 7px;
+  border-radius: 6px;
+  cursor: pointer;
+  font-weight: 650;
+}
+
+.open-editor-button {
+  height: 37px;
+  padding: 0 14px;
+  border: 1px solid #b9d4ef;
+  color: #176cc0;
+  background: #f4f9ff;
+  font-size: 11px;
+}
+
+.open-editor-button:hover {
+  border-color: #7eafe0;
+  background: #eaf4ff;
+}
+
+.open-editor-button.is-editing {
+  border-color: #69b79a;
+  color: #137a55;
+  background: #effaf5;
+}
+
+.button-spinner--blue {
+  border-color: rgb(34 121 199 / 22%);
+  border-top-color: #2279c7;
+}
+
+.metadata-grid {
+  display: grid;
+  grid-template-columns: repeat(4, 1fr);
+  border-right: 1px solid #dce5ed;
+  border-bottom: 1px solid #dce5ed;
+  border-left: 1px solid #dce5ed;
+  background: #f9fbfd;
+}
+
+.metadata-grid > div {
+  display: flex;
+  min-height: 64px;
+  justify-content: center;
+  flex-direction: column;
+  padding: 0 21px;
+  border-right: 1px solid #e4eaf0;
+}
+
+.metadata-grid > div:last-child {
+  border-right: 0;
+}
+
+.metadata-grid span {
+  color: #94a0ae;
+  font-size: 9px;
+}
+
+.metadata-grid strong {
+  margin-top: 4px;
+  color: #405368;
+  font-size: 12px;
+}
+
+.preview-card {
+  overflow: hidden;
+  margin-top: 15px;
+  border: 1px solid #d8e1e9;
+  border-radius: 9px;
+  background: #fff;
+  box-shadow: 0 8px 25px rgb(23 52 81 / 7%);
+}
+
+.preview-card__bar {
+  display: grid;
+  height: 39px;
+  align-items: center;
+  grid-template-columns: 1fr auto 1fr;
+  padding: 0 13px;
+  border-bottom: 1px solid #e4e9ee;
+  color: #66778a;
+  background: #f4f6f8;
+  font-size: 10px;
+}
+
+.preview-card__bar > div {
+  display: flex;
+  gap: 6px;
+}
+
+.preview-card__bar em {
+  justify-self: end;
+  color: #9aa6b3;
+  font-style: normal;
+}
+
+.window-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+}
+
+.window-dot--red { background: #ef6b62; }
+.window-dot--yellow { background: #e9b949; }
+.window-dot--green { background: #49b97b; }
+
+.notebook-menu {
+  display: flex;
+  height: 34px;
+  align-items: center;
+  gap: 19px;
+  padding: 0 19px;
+  border-bottom: 1px solid #edf0f3;
+  color: #29394c;
+  font-family: Arial, sans-serif;
+  font-size: 10px;
+}
+
+.notebook-tools {
+  display: flex;
+  height: 37px;
+  align-items: center;
+  gap: 5px;
+  padding: 0 17px;
+  border-bottom: 1px solid #e8ecf0;
+  color: #5d6c7b;
+  background: #fbfcfd;
+  font-size: 10px;
+}
+
+.notebook-tools button {
+  width: 24px;
+  height: 23px;
+  border: 1px solid #dfe5eb;
+  border-radius: 3px;
+  color: #677585;
+  background: #fff;
+}
+
+.notebook-tools span {
+  min-width: 100px;
+  margin-left: 7px;
+  padding: 5px 9px;
+  border: 1px solid #dfe5eb;
+  background: #fff;
+}
+
+.notebook-tools em {
+  margin-left: auto;
+  color: #728091;
+  font-style: normal;
+}
+
+.notebook-preview {
+  min-height: 300px;
+}
+
+.cell {
+  position: relative;
+  width: calc(100% - 65px);
+  margin: 23px 21px 13px 44px;
+  padding: 13px 17px;
+  border: 1px solid #d9e1e8;
+  border-left: 3px solid #2e83d3;
+  background: #f8fafc;
+}
+
+.cell--muted {
+  border-left-color: #9ab1c7;
+}
+
+.cell__prompt {
+  position: absolute;
+  left: -37px;
+  color: #4b79ab;
+  font-family: Consolas, monospace;
+  font-size: 10px;
+}
+
+.cell pre,
+.python-preview pre {
+  margin: 0;
+  color: #293b50;
+  font: 11px/1.75 Consolas, "SFMono-Regular", monospace;
+}
+
+.cell pre b,
+.python-preview b {
+  color: #9c35a5;
+}
+
+.cell pre i,
+.python-preview i {
+  color: #b35336;
+  font-style: normal;
+}
+
+.cell pre span {
+  color: #8392a1;
+}
+
+.python-preview {
+  display: flex;
+  min-height: 330px;
+  padding: 25px 0;
+  background: #fbfcfe;
+}
+
+.line-numbers {
+  width: 45px;
+  margin-right: 16px;
+  padding-right: 13px;
+  border-right: 1px solid #e4e9ee;
+  color: #abb5c0;
+  font: 11px/1.75 Consolas, monospace;
+  text-align: right;
+}
+
+.code-comment { color: #799469; }
+.code-function { color: #3269a8; }
+
+.integrity-row {
+  display: flex;
+  align-items: center;
+  gap: 24px;
+  margin-top: 12px;
+  padding: 0 3px;
+  color: #8795a4;
+  font-size: 10px;
+}
+
+.integrity-row span {
+  display: inline-flex;
+  align-items: center;
+  gap: 5px;
+}
+
+.integrity-row span:first-child {
+  color: #25875e;
+}
+
+.welcome-panel {
+  display: flex;
+  min-height: 100%;
+  align-items: center;
+  justify-content: center;
+  flex-direction: column;
+  padding: 35px;
+  background:
+    radial-gradient(circle at 50% 39%, rgb(74 150 225 / 9%), transparent 24%),
+    radial-gradient(circle, #d3dee8 1px, transparent 1px);
+  background-size: auto, 18px 18px;
+  text-align: center;
+}
+
+.welcome-panel__visual {
+  display: grid;
+  width: 86px;
+  height: 86px;
+  margin-bottom: 21px;
+  place-items: center;
+  border: 1px solid #cfe0f0;
+  border-radius: 25px;
+  color: #3d8cd9;
+  background: linear-gradient(145deg, #fff, #eaf4fd);
+  box-shadow: 0 16px 35px rgb(40 103 165 / 12%);
+}
+
+.welcome-panel__label {
+  color: #2e81ce;
+  font-size: 10px;
+  font-weight: 800;
+  letter-spacing: .12em;
+}
+
+.welcome-panel h2 {
+  margin: 9px 0 7px;
+  color: #21354c;
+  font-size: 23px;
+}
+
+.welcome-panel p {
+  width: min(430px, 100%);
+  margin: 0 0 22px;
+  color: #76879a;
+  font-size: 12px;
+  line-height: 1.8;
+}
+
+.primary-button {
+  min-height: 37px;
+  padding: 0 15px;
+  border: 1px solid #126ac3;
+  color: #fff;
+  background: linear-gradient(135deg, #1881e7, #1268c9);
+  box-shadow: 0 6px 15px rgb(20 111 202 / 18%);
+  font-size: 12px;
+}
+
+.primary-button:hover:not(:disabled) {
+  background: linear-gradient(135deg, #1175d8, #0e5bad);
+}
+
+.primary-button:disabled {
+  cursor: not-allowed;
+  opacity: .58;
+}
+
+.secondary-button {
+  min-height: 37px;
+  padding: 0 15px;
+  border: 1px solid #d8e1e9;
+  color: #56687c;
+  background: #fff;
+  font-size: 12px;
+}
+
+.modal-backdrop {
+  position: fixed;
+  z-index: 20;
+  display: grid;
+  inset: 0;
+  place-items: center;
+  background: rgb(10 27 45 / 43%);
+  backdrop-filter: blur(2px);
+}
+
+.modal {
+  width: min(520px, calc(100vw - 40px));
+  overflow: hidden;
+  border: 1px solid #dce4eb;
+  border-radius: 11px;
+  background: #fff;
+  box-shadow: 0 24px 70px rgb(8 27 48 / 25%);
+  animation: modal-in .18s ease-out;
+}
+
+.modal--compact {
+  width: min(430px, calc(100vw - 40px));
+}
+
+.modal__header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 20px 22px 16px;
+  border-bottom: 1px solid #e7ecf1;
+}
+
+.modal__eyebrow {
+  color: #2d82d4;
+  font-size: 9px;
+  font-weight: 800;
+  letter-spacing: .12em;
+}
+
+.modal__header h2 {
+  margin: 4px 0 0;
+  color: #1c2d42;
+  font-size: 19px;
+}
+
+.modal form {
+  padding: 19px 22px 0;
+}
+
+.destination-chip {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+  margin-bottom: 15px;
+  padding: 9px 10px;
+  border: 1px solid #dce7ef;
+  border-radius: 6px;
+  color: #587087;
+  background: #f7fafc;
+  font-size: 10px;
+}
+
+.destination-chip svg {
+  color: #dda321;
+  fill: #f7c84a;
+}
+
+.form-field {
+  display: flex;
+  margin-bottom: 17px;
+  flex-direction: column;
+  gap: 7px;
+  color: #3c4e62;
+  font-size: 12px;
+  font-weight: 650;
+}
+
+.form-field input,
+.form-field select,
+.form-field textarea {
+  width: 100%;
+  padding: 0 11px;
+  border: 1px solid #d6e0e9;
+  border-radius: 6px;
+  outline: 0;
+  color: #283a4e;
+  background: #fff;
+  font-size: 12px;
+}
+
+.form-field input,
+.form-field select {
+  height: 39px;
+}
+
+.form-field textarea {
+  min-height: 92px;
+  padding-top: 10px;
+  resize: vertical;
+  font-family: inherit;
+  line-height: 1.55;
+}
+
+.form-field input:focus,
+.form-field select:focus,
+.form-field textarea:focus {
+  border-color: #5b9ddb;
+  box-shadow: 0 0 0 3px rgb(38 125 207 / 8%);
+}
+
+.form-field small {
+  color: #98a5b3;
+  font-size: 9px;
+  font-weight: 400;
+}
+
+.publish-source {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 17px;
+  padding: 11px 12px;
+  border: 1px solid #dce6ef;
+  border-radius: 7px;
+  background: #f8fbfd;
+}
+
+.publish-source > span:last-child {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.publish-source strong {
+  overflow: hidden;
+  color: #34485d;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.publish-source small {
+  color: #8b99a8;
+  font-size: 9px;
+}
+
+.version-receipt {
+  width: min(470px, calc(100vw - 40px));
+  padding: 30px 28px 25px;
+  text-align: center;
+}
+
+.version-receipt__check {
+  display: grid;
+  width: 58px;
+  height: 58px;
+  margin: 0 auto 14px;
+  place-items: center;
+  border-radius: 50%;
+  color: #fff;
+  background: linear-gradient(145deg, #24b67d, #149566);
+  box-shadow: 0 9px 24px rgb(25 157 104 / 25%);
+}
+
+.version-receipt h2 {
+  margin: 5px 0 8px;
+  color: #24374a;
+  font-size: 20px;
+}
+
+.version-receipt > p {
+  max-width: 360px;
+  margin: 0 auto 20px;
+  color: #718093;
+  font-size: 11px;
+  line-height: 1.65;
+}
+
+.version-id-box {
+  display: grid;
+  grid-template-columns: auto minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 9px;
+  padding: 11px 12px;
+  border: 1px solid #dce6ee;
+  border-radius: 7px;
+  background: #f7fafc;
+  text-align: left;
+}
+
+.version-id-box span {
+  color: #8795a4;
+  font-size: 9px;
+}
+
+.version-id-box code {
+  overflow: hidden;
+  color: #275271;
+  font-size: 10px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.version-id-box button {
+  padding: 4px 8px;
+  border: 1px solid #bad3e8;
+  border-radius: 4px;
+  color: #2475b7;
+  background: #fff;
+  cursor: pointer;
+  font-size: 9px;
+}
+
+.version-receipt__close {
+  width: 100%;
+  height: 39px;
+  margin-top: 17px;
+  border: 0;
+  color: #fff;
+  background: #1976cf;
+}
+
+.type-picker {
+  display: grid;
+  margin: 0 0 17px;
+  padding: 0;
+  border: 0;
+  grid-template-columns: 1fr 1fr;
+  gap: 9px;
+}
+
+.type-picker legend {
+  margin-bottom: 7px;
+  color: #3c4e62;
+  font-size: 12px;
+  font-weight: 650;
+}
+
+.type-picker button {
+  position: relative;
+  display: flex;
+  min-height: 72px;
+  align-items: center;
+  gap: 9px;
+  padding: 10px;
+  border: 1px solid #dae2ea;
+  border-radius: 7px;
+  background: #fff;
+  cursor: pointer;
+  text-align: left;
+}
+
+.type-picker button:hover {
+  border-color: #a9c6e1;
+}
+
+.type-picker button.is-selected {
+  border-color: #4d98df;
+  background: #f4f9ff;
+  box-shadow: 0 0 0 2px rgb(49 133 216 / 7%);
+}
+
+.type-picker__icon {
+  display: grid;
+  width: 37px;
+  height: 37px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 8px;
+}
+
+.type-picker__icon--notebook {
+  color: #dd5a4c;
+  background: #fff0ed;
+}
+
+.type-picker__icon--python {
+  color: #2a75c5;
+  background: #e9f3ff;
+}
+
+.type-picker button > span:nth-child(2) {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+}
+
+.type-picker strong {
+  color: #34475b;
+  font-size: 11px;
+}
+
+.type-picker small {
+  margin-top: 3px;
+  color: #919eac;
+  font-size: 8px;
+  line-height: 1.35;
+}
+
+.type-picker__check {
+  position: absolute;
+  top: 6px;
+  right: 6px;
+  display: none;
+  width: 17px;
+  height: 17px;
+  place-items: center;
+  border-radius: 50%;
+  color: #fff;
+  background: #2e88dd;
+}
+
+.is-selected .type-picker__check {
+  display: grid;
+}
+
+.modal__footer {
+  display: flex;
+  justify-content: flex-end;
+  gap: 8px;
+  margin: 3px -22px 0;
+  padding: 14px 22px;
+  border-top: 1px solid #e8edf2;
+  background: #fafbfc;
+}
+
+.button-spinner {
+  width: 13px;
+  height: 13px;
+  border: 2px solid rgb(255 255 255 / 45%);
+  border-top-color: #fff;
+  border-radius: 50%;
+  animation: spin .7s linear infinite;
+}
+
+.button-spinner.button-spinner--blue {
+  border-color: rgb(34 121 199 / 22%);
+  border-top-color: #2279c7;
+}
+
+.toast {
+  position: fixed;
+  z-index: 30;
+  top: 82px;
+  right: 21px;
+  display: flex;
+  min-width: 260px;
+  max-width: 410px;
+  min-height: 46px;
+  align-items: center;
+  gap: 9px;
+  padding: 10px 14px;
+  border: 1px solid #cfdbe6;
+  border-radius: 8px;
+  color: #43566a;
+  background: #fff;
+  box-shadow: 0 12px 35px rgb(20 42 66 / 14%);
+  font-size: 12px;
+  animation: toast-in .2s ease-out;
+}
+
+.toast > span {
+  display: grid;
+  width: 27px;
+  height: 27px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 50%;
+}
+
+.toast--success > span {
+  color: #177b55;
+  background: #e6f7f0;
+}
+
+.toast--error > span {
+  color: #b94a4a;
+  background: #fff0f0;
+}
+
+.toast--info > span {
+  color: #2675bf;
+  background: #eaf4fd;
+}
+
+@keyframes spin {
+  to { transform: rotate(360deg); }
+}
+
+@keyframes shimmer {
+  to { background-position: -200% 0; }
+}
+
+@keyframes modal-in {
+  from { opacity: 0; transform: translateY(8px) scale(.985); }
+}
+
+@keyframes toast-in {
+  from { opacity: 0; transform: translateY(-7px); }
+}
+
+@keyframes lock-pulse {
+  50% { opacity: .5; transform: scale(.78); }
+}
+
+@media (max-width: 1280px) {
+  .sidebar {
+    width: 184px;
+    min-width: 184px;
+  }
+
+  .brand__name {
+    font-size: 13px;
+  }
+
+  .workspace-layout {
+    grid-template-columns: 285px minmax(0, 1fr);
+  }
+
+  .api-state {
+    display: none;
+  }
+
+  .workspace-switcher span:not(.workspace-switcher__icon) {
+    min-width: 130px;
+  }
+
+  .script-overview {
+    width: calc(100% - 30px);
+  }
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/schedule.css b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/schedule.css
new file mode 100644
index 0000000..ce245f3
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/app/styles/schedule.css
@@ -0,0 +1,1176 @@
+.schedule-page {
+  position: relative;
+  display: flex;
+  min-height: 0;
+  flex: 1;
+  flex-direction: column;
+  gap: 10px;
+  padding: 10px;
+  overflow: hidden;
+}
+
+.schedule-toolbar {
+  display: flex;
+  min-height: 56px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 14px;
+  border: 1px solid #dce4ec;
+  border-radius: 7px;
+  background: #fff;
+  box-shadow: 0 2px 7px rgb(25 46 73 / 3%);
+}
+
+.schedule-toolbar > div:first-child {
+  display: flex;
+  align-items: baseline;
+  gap: 10px;
+}
+
+.schedule-toolbar strong {
+  color: #1c2d42;
+  font-size: 16px;
+}
+
+.schedule-toolbar > div:first-child span {
+  color: #8b99a9;
+  font-size: 11px;
+}
+
+.schedule-toolbar__actions {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.schedule-toolbar__actions button,
+.schedule-canvas-title button,
+.schedule-canvas-status button {
+  display: inline-flex;
+  min-height: 32px;
+  align-items: center;
+  justify-content: center;
+  gap: 5px;
+  padding: 0 12px;
+  border: 1px solid #dce5ee;
+  border-radius: 6px;
+  color: #526477;
+  background: #fff;
+  cursor: pointer;
+  font-size: 12px;
+  font-weight: 600;
+}
+
+.schedule-toolbar__actions button:hover:not(:disabled),
+.schedule-canvas-title button:hover,
+.schedule-canvas-status button:hover {
+  border-color: #aac6e5;
+  color: #126aca;
+  background: #f6faff;
+}
+
+.schedule-toolbar__actions button:disabled {
+  cursor: not-allowed;
+  opacity: .5;
+}
+
+.schedule-toolbar__actions .schedule-action--primary {
+  border-color: #126fd4;
+  color: #fff;
+  background: #126fd4;
+}
+
+.schedule-toolbar__actions .schedule-action--primary:hover:not(:disabled) {
+  border-color: #0e5fb9;
+  color: #fff;
+  background: #0e5fb9;
+}
+
+.schedule-toolbar__actions .schedule-action--danger {
+  border-color: #f1cccc;
+  color: #c14c4c;
+}
+
+.schedule-toolbar__actions .schedule-action--run {
+  border-color: #159466;
+  color: #fff;
+  background: #159466;
+}
+
+.schedule-toolbar__actions .schedule-action--run:hover:not(:disabled) {
+  border-color: #0f7d55;
+  color: #fff;
+  background: #0f7d55;
+}
+
+.schedule-workbench {
+  display: grid;
+  min-height: 0;
+  flex: 1;
+  grid-template-columns: 278px minmax(420px, 1fr) 316px;
+  gap: 10px;
+}
+
+.schedule-left,
+.schedule-center,
+.schedule-right {
+  min-height: 0;
+  border: 1px solid #dce4ec;
+  border-radius: 7px;
+  background: #fff;
+  box-shadow: 0 2px 7px rgb(25 46 73 / 3%);
+}
+
+.schedule-left {
+  display: grid;
+  overflow: hidden;
+  grid-template-rows: minmax(210px, 42%) minmax(260px, 58%);
+}
+
+.schedule-panel {
+  display: flex;
+  min-height: 0;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.schedule-list-panel {
+  border-bottom: 1px solid #e3e9ef;
+}
+
+.schedule-panel__title {
+  display: flex;
+  min-height: 48px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 12px;
+}
+
+.schedule-panel__title > div {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+}
+
+.schedule-panel__title strong {
+  color: #223247;
+  font-size: 14px;
+}
+
+.schedule-panel__title span {
+  display: inline-grid;
+  min-width: 20px;
+  height: 20px;
+  place-items: center;
+  padding: 0 5px;
+  border-radius: 10px;
+  color: #718195;
+  background: #eef3f8;
+  font-size: 10px;
+}
+
+.schedule-search {
+  display: flex;
+  min-height: 35px;
+  align-items: center;
+  gap: 7px;
+  margin: 0 10px 7px;
+  padding: 0 9px;
+  border: 1px solid #dce5ed;
+  border-radius: 6px;
+  color: #95a3b2;
+  background: #fff;
+}
+
+.schedule-search:focus-within {
+  border-color: #8db9e8;
+  box-shadow: 0 0 0 3px rgb(38 124 216 / 8%);
+}
+
+.schedule-search input {
+  min-width: 0;
+  flex: 1;
+  border: 0;
+  outline: 0;
+  color: #33475d;
+  background: transparent;
+  font-size: 12px;
+}
+
+.schedule-search input::placeholder {
+  color: #a6b2be;
+}
+
+.schedule-list,
+.artifact-list {
+  min-height: 0;
+  padding: 0 8px 9px;
+  overflow: auto;
+}
+
+.schedule-card {
+  position: relative;
+  display: flex;
+  width: 100%;
+  min-height: 62px;
+  align-items: center;
+  gap: 9px;
+  margin-bottom: 6px;
+  padding: 8px 10px;
+  border: 1px solid #e1e8ef;
+  border-radius: 6px;
+  color: #526276;
+  background: #fff;
+  cursor: pointer;
+  text-align: left;
+}
+
+.schedule-card:hover {
+  border-color: #b9cfe7;
+  background: #f8fbff;
+}
+
+.schedule-card--active {
+  border-color: #89b8ec;
+  color: #1c64b1;
+  background: #edf6ff;
+  box-shadow: inset 3px 0 #247fdc;
+}
+
+.schedule-card > span:last-child {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.schedule-card strong {
+  max-width: 205px;
+  overflow: hidden;
+  color: #283b50;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-card small {
+  color: #8d9aab;
+  font-size: 10px;
+}
+
+.schedule-status {
+  width: 8px;
+  height: 8px;
+  flex: 0 0 auto;
+  border-radius: 50%;
+  background: #aeb9c5;
+  box-shadow: 0 0 0 3px rgb(142 156 171 / 11%);
+}
+
+.schedule-status.is-enabled {
+  background: #18b979;
+  box-shadow: 0 0 0 3px rgb(24 185 121 / 12%);
+}
+
+.artifact-tip {
+  margin: 0 11px 8px;
+  padding: 7px 8px;
+  border-radius: 5px;
+  color: #6f8297;
+  background: #f3f7fb;
+  font-size: 10px;
+  line-height: 1.45;
+}
+
+.artifact-card {
+  display: flex;
+  min-height: 58px;
+  align-items: center;
+  gap: 9px;
+  margin-bottom: 6px;
+  padding: 8px 9px;
+  border: 1px solid #e2e9f0;
+  border-radius: 6px;
+  background: #fff;
+  cursor: grab;
+  user-select: none;
+}
+
+.artifact-card:hover {
+  border-color: #98bee7;
+  box-shadow: 0 3px 10px rgb(40 96 155 / 8%);
+  transform: translateY(-1px);
+}
+
+.artifact-card:active {
+  cursor: grabbing;
+}
+
+.artifact-card__icon {
+  display: grid;
+  width: 31px;
+  height: 31px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 6px;
+}
+
+.artifact-card__icon--notebook {
+  color: #e05e53;
+  background: #fff0ee;
+}
+
+.artifact-card__icon--python {
+  color: #326fc1;
+  background: #eaf3ff;
+}
+
+.artifact-card > span:last-child {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.artifact-card strong {
+  max-width: 190px;
+  overflow: hidden;
+  color: #2f4257;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.artifact-card small {
+  color: #8e9bab;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 9px;
+}
+
+.schedule-empty {
+  margin: 18px 10px;
+  color: #95a2b0;
+  font-size: 11px;
+  line-height: 1.6;
+  text-align: center;
+}
+
+.schedule-center {
+  display: flex;
+  overflow: hidden;
+  flex-direction: column;
+}
+
+.schedule-canvas-title {
+  display: flex;
+  min-height: 53px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 12px;
+  border-bottom: 1px solid #e4eaf0;
+}
+
+.schedule-canvas-title > div {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 3px;
+}
+
+.schedule-canvas-title strong {
+  color: #27394d;
+  font-size: 14px;
+}
+
+.schedule-canvas-title span {
+  overflow: hidden;
+  color: #93a0ae;
+  font-size: 10px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-canvas-title button {
+  min-height: 28px;
+  color: #b25a4f;
+}
+
+.schedule-canvas {
+  position: relative;
+  min-height: 0;
+  flex: 1;
+  overflow: auto;
+  background-color: #f9fbfd;
+  background-image:
+    linear-gradient(#e7edf3 1px, transparent 1px),
+    linear-gradient(90deg, #e7edf3 1px, transparent 1px),
+    linear-gradient(#f1f4f7 1px, transparent 1px),
+    linear-gradient(90deg, #f1f4f7 1px, transparent 1px);
+  background-position: -1px -1px;
+  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px;
+}
+
+.schedule-canvas.is-linking {
+  cursor: crosshair;
+}
+
+.schedule-canvas__surface {
+  position: relative;
+}
+
+.schedule-edges {
+  position: absolute;
+  z-index: 1;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+  overflow: visible;
+}
+
+.schedule-edge-line {
+  fill: none;
+  stroke: #4e92db;
+  stroke-width: 2.2;
+  transition: stroke .15s, stroke-width .15s;
+}
+
+.schedule-edge-hit {
+  fill: none;
+  stroke: transparent;
+  stroke-width: 14;
+  cursor: pointer;
+  pointer-events: stroke;
+}
+
+.schedule-edges g.is-selected .schedule-edge-line {
+  stroke: #df8142;
+  stroke-width: 3.4;
+}
+
+.schedule-node {
+  position: absolute;
+  z-index: 2;
+  display: flex;
+  flex-direction: column;
+  padding: 11px 12px 9px;
+  border: 1px solid #91b7de;
+  border-radius: 8px;
+  color: #34516f;
+  background: #fff;
+  box-shadow: 0 7px 18px rgb(36 75 117 / 11%);
+  cursor: grab;
+  touch-action: none;
+  user-select: none;
+}
+
+.schedule-context-menu {
+  position: fixed;
+  z-index: 60;
+  min-width: 168px;
+  padding: 5px;
+  border: 1px solid #d9e3ec;
+  border-radius: 8px;
+  background: #fff;
+  box-shadow: 0 14px 36px rgb(14 35 57 / 22%);
+}
+
+.schedule-context-menu button {
+  display: flex;
+  width: 100%;
+  align-items: center;
+  gap: 9px;
+  padding: 9px 10px;
+  border: 0;
+  border-radius: 5px;
+  color: #c23b3b;
+  background: transparent;
+  font: inherit;
+  font-size: 12px;
+  text-align: left;
+  cursor: pointer;
+}
+
+.schedule-context-menu button:hover {
+  background: #fff0f0;
+}
+
+.schedule-context-menu button.schedule-context-menu__action {
+  color: #173a5e;
+}
+
+.schedule-context-menu button.schedule-context-menu__action:hover {
+  background: #eef6ff;
+}
+
+.schedule-node:active {
+  cursor: grabbing;
+}
+
+.schedule-node.is-selected {
+  border-color: #1978d4;
+  box-shadow:
+    0 0 0 3px rgb(25 120 212 / 11%),
+    0 8px 22px rgb(36 75 117 / 13%);
+}
+
+.schedule-node__heading {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+}
+
+.schedule-node__heading strong {
+  min-width: 0;
+  flex: 1;
+  overflow: hidden;
+  color: #243b53;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-node__heading > button {
+  display: grid;
+  width: 23px;
+  height: 23px;
+  place-items: center;
+  padding: 0;
+  border: 0;
+  border-radius: 4px;
+  color: #8b99a7;
+  background: transparent;
+  cursor: pointer;
+}
+
+.schedule-node__heading > button:hover {
+  color: #1978d4;
+  background: #edf5fd;
+}
+
+.schedule-node__type {
+  display: grid;
+  width: 25px;
+  height: 25px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 5px;
+}
+
+.schedule-node__type--notebook {
+  color: #da5c52;
+  background: #fff0ef;
+}
+
+.schedule-node__type--python {
+  color: #316fbf;
+  background: #eaf3ff;
+}
+
+.schedule-node > p {
+  margin: 8px 0 6px;
+  overflow: hidden;
+  color: #7e8d9d;
+  font-size: 10px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-node footer {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding-top: 6px;
+  border-top: 1px solid #edf1f5;
+}
+
+.schedule-node footer span {
+  max-width: 145px;
+  overflow: hidden;
+  color: #8d9baa;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 9px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-node footer b {
+  color: #1978d4;
+  font-size: 10px;
+}
+
+.schedule-node__port {
+  position: absolute;
+  z-index: 4;
+  top: calc(50% - 7px);
+  width: 14px;
+  height: 14px;
+  padding: 0;
+  border: 2px solid #4e92db;
+  border-radius: 50%;
+  background: #fff;
+  cursor: crosshair;
+}
+
+.schedule-node__port:hover,
+.schedule-node__port.is-active {
+  border-color: #176ec5;
+  background: #4e92db;
+  box-shadow: 0 0 0 4px rgb(45 124 207 / 16%);
+}
+
+.schedule-node__port--in {
+  left: -8px;
+}
+
+.schedule-node__port--out {
+  right: -8px;
+}
+
+.schedule-canvas-empty {
+  position: sticky;
+  z-index: 0;
+  left: 50%;
+  top: 46%;
+  display: flex;
+  width: 350px;
+  margin: 190px auto 0;
+  flex-direction: column;
+  align-items: center;
+  color: #9aa8b6;
+  text-align: center;
+}
+
+.schedule-canvas-empty > svg {
+  margin-bottom: 12px;
+  color: #8cb4de;
+}
+
+.schedule-canvas-empty strong {
+  color: #567089;
+  font-size: 14px;
+}
+
+.schedule-canvas-empty p {
+  margin: 7px 0 13px;
+  font-size: 11px;
+}
+
+.schedule-canvas-empty button {
+  display: inline-flex;
+  min-height: 32px;
+  align-items: center;
+  gap: 4px;
+  padding: 0 12px;
+  border: 1px solid #2580da;
+  border-radius: 6px;
+  color: #fff;
+  background: #2580da;
+  cursor: pointer;
+  font-size: 11px;
+}
+
+.schedule-canvas-status {
+  display: flex;
+  min-height: 35px;
+  align-items: center;
+  gap: 14px;
+  padding: 0 12px;
+  border-top: 1px solid #e4eaf0;
+  color: #8b99a9;
+  background: #fff;
+  font-size: 10px;
+}
+
+.schedule-canvas-status span:first-child {
+  color: #b17a48;
+}
+
+.schedule-canvas-status span.is-valid {
+  color: #16875b;
+}
+
+.schedule-canvas-status button {
+  min-height: 24px;
+  margin-left: auto;
+  padding: 0 8px;
+  color: #bd504b;
+  font-size: 10px;
+}
+
+.schedule-right {
+  display: grid;
+  overflow: hidden;
+  grid-template-rows: minmax(0, 1fr) 236px;
+}
+
+.schedule-inspector-scroll {
+  min-height: 0;
+  overflow: auto;
+}
+
+.schedule-inspector {
+  display: flex;
+  min-height: 100%;
+  flex-direction: column;
+}
+
+.schedule-inspector > section {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  padding: 14px;
+  border-bottom: 1px solid #e7ecf1;
+}
+
+.schedule-inspector h3 {
+  margin: 0 0 2px;
+  color: #273b50;
+  font-size: 13px;
+}
+
+.schedule-inspector label {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+}
+
+.schedule-inspector label > span {
+  color: #758497;
+  font-size: 10px;
+  font-weight: 600;
+}
+
+.schedule-inspector input:not([type="checkbox"]),
+.schedule-inspector select,
+.schedule-inspector textarea {
+  width: 100%;
+  border: 1px solid #dce4ec;
+  border-radius: 5px;
+  outline: 0;
+  color: #32475d;
+  background: #fff;
+  font-size: 11px;
+}
+
+.schedule-inspector input:not([type="checkbox"]),
+.schedule-inspector select {
+  height: 33px;
+  padding: 0 8px;
+}
+
+.schedule-inspector textarea {
+  padding: 7px 8px;
+  line-height: 1.5;
+  resize: vertical;
+}
+
+.schedule-inspector input:focus,
+.schedule-inspector select:focus,
+.schedule-inspector textarea:focus {
+  border-color: #81b2e7;
+  box-shadow: 0 0 0 3px rgb(38 124 216 / 8%);
+}
+
+.schedule-switch-row {
+  flex-direction: row !important;
+  align-items: center;
+  justify-content: space-between;
+  padding: 8px 9px;
+  border-radius: 6px;
+  background: #f5f8fb;
+}
+
+.schedule-switch-row > span {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.schedule-switch-row b {
+  color: #45596f;
+  font-size: 11px;
+}
+
+.schedule-switch-row small {
+  color: #94a1ae;
+  font-size: 9px;
+  font-weight: 400;
+}
+
+.schedule-switch-row input {
+  width: 34px;
+  height: 18px;
+  accent-color: #1978d4;
+}
+
+.inspector-grid {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 8px;
+}
+
+.inspector-secondary-button,
+.inspector-primary-button,
+.inspector-danger-button {
+  display: flex;
+  min-height: 34px;
+  align-items: center;
+  justify-content: center;
+  border-radius: 6px;
+  cursor: pointer;
+  font-size: 11px;
+  font-weight: 650;
+}
+
+.inspector-secondary-button {
+  border: 1px solid #bcd2e9;
+  color: #2871bb;
+  background: #f7fbff;
+}
+
+.inspector-primary-button {
+  margin: 14px;
+  border: 1px solid #1978d4;
+  color: #fff;
+  background: #1978d4;
+}
+
+.inspector-danger-button {
+  border: 1px solid #efc6c6;
+  color: #bd4f4f;
+  background: #fff7f7;
+}
+
+.inspector-primary-button:disabled,
+.inspector-secondary-button:disabled,
+.inspector-danger-button:disabled {
+  cursor: not-allowed;
+  opacity: .55;
+}
+
+.cron-preview-list {
+  margin: 0;
+  padding: 8px 8px 8px 28px;
+  border-radius: 5px;
+  color: #5d7186;
+  background: #f5f8fb;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 9px;
+  line-height: 1.7;
+}
+
+.schedule-next-run {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 8px 9px;
+  border-radius: 5px;
+  color: #8b99a8;
+  background: #f5f8fb;
+  font-size: 10px;
+}
+
+.schedule-next-run strong {
+  color: #425970;
+  font-size: 10px;
+}
+
+.schedule-inspector-empty {
+  display: flex;
+  min-height: 100%;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  padding: 30px;
+  color: #9aa8b6;
+  text-align: center;
+}
+
+.schedule-inspector-empty svg {
+  margin-bottom: 10px;
+  color: #93b4d6;
+}
+
+.schedule-inspector-empty strong {
+  color: #516a82;
+  font-size: 14px;
+}
+
+.schedule-inspector-empty p {
+  font-size: 11px;
+  line-height: 1.6;
+}
+
+.schedule-run-history {
+  display: flex;
+  min-height: 0;
+  flex-direction: column;
+  border-top: 1px solid #e0e7ee;
+  background: #fbfcfe;
+}
+
+.schedule-run-history > header {
+  display: flex;
+  min-height: 44px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 12px;
+  border-bottom: 1px solid #e8edf2;
+  background: #fff;
+}
+
+.schedule-run-history > header > div {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+}
+
+.schedule-run-history > header strong {
+  color: #2b4056;
+  font-size: 12px;
+}
+
+.schedule-run-history > header span {
+  display: inline-grid;
+  min-width: 18px;
+  height: 18px;
+  place-items: center;
+  border-radius: 9px;
+  color: #71849a;
+  background: #edf2f7;
+  font-size: 9px;
+}
+
+.schedule-run-history > header button {
+  display: grid;
+  width: 27px;
+  height: 27px;
+  place-items: center;
+  border: 1px solid #dce5ee;
+  border-radius: 5px;
+  color: #66809a;
+  background: #fff;
+  cursor: pointer;
+}
+
+.schedule-run-history > header button:disabled {
+  cursor: not-allowed;
+  opacity: .45;
+}
+
+.schedule-run-list {
+  display: flex;
+  min-height: 0;
+  flex: 1;
+  flex-direction: column;
+  gap: 7px;
+  padding: 9px;
+  overflow: auto;
+}
+
+.schedule-run-list > p {
+  margin: auto;
+  padding: 12px;
+  color: #929fac;
+  font-size: 10px;
+  line-height: 1.6;
+  text-align: center;
+}
+
+.schedule-run-card {
+  display: grid;
+  align-items: start;
+  gap: 7px;
+  padding: 8px;
+  border: 1px solid #e1e8ef;
+  border-radius: 6px;
+  background: #fff;
+  grid-template-columns: 8px minmax(0, 1fr) auto;
+}
+
+.schedule-run-card > div {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.schedule-run-card strong {
+  color: #425970;
+  font-size: 10px;
+}
+
+.schedule-run-card small {
+  color: #8b99a8;
+  font-size: 8px;
+}
+
+.schedule-run-card p {
+  margin: 2px 0 0;
+  overflow: hidden;
+  color: #b65353;
+  font-size: 8px;
+  line-height: 1.4;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-run-card code {
+  color: #8b9bad;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 8px;
+}
+
+.run-status-dot {
+  width: 7px;
+  height: 7px;
+  margin-top: 3px;
+  border-radius: 50%;
+  background: #9aa8b6;
+}
+
+.run-status-dot.is-queued {
+  background: #e6a33c;
+}
+
+.run-status-dot.is-running {
+  background: #2788dc;
+  box-shadow: 0 0 0 3px rgb(39 136 220 / 12%);
+}
+
+.run-status-dot.is-succeeded {
+  background: #25a46f;
+}
+
+.run-status-dot.is-failed,
+.run-status-dot.is-cancelled,
+.run-status-dot.is-timed_out {
+  background: #d75b5b;
+}
+
+.node-inspector-title {
+  flex-direction: row !important;
+  align-items: center;
+}
+
+.node-inspector-title > div {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 3px;
+}
+
+.node-inspector-title small {
+  color: #96a2af;
+  font-size: 9px;
+}
+
+.node-inspector-title strong {
+  overflow: hidden;
+  color: #30465d;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 11px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.version-readonly {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+  padding: 9px;
+  border: 1px solid #dae6f2;
+  border-radius: 6px;
+  background: #f6faff;
+}
+
+.version-readonly strong {
+  color: #35516e;
+  font-size: 11px;
+}
+
+.version-readonly span {
+  width: fit-content;
+  padding: 2px 6px;
+  border-radius: 8px;
+  color: #176ec5;
+  background: #e3f0fd;
+  font-size: 9px;
+  font-weight: 700;
+}
+
+.version-readonly small {
+  overflow: hidden;
+  color: #8190a0;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 8px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.json-editor {
+  color: #37516a !important;
+  background: #f8fafc !important;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 10px !important;
+}
+
+.node-inspector-actions {
+  display: grid;
+  grid-template-columns: 1fr 90px;
+  gap: 7px;
+  margin-top: auto;
+  padding: 14px;
+}
+
+.node-inspector-actions .inspector-primary-button {
+  margin: 0;
+}
+
+.schedule-busy {
+  position: absolute;
+  z-index: 20;
+  right: 22px;
+  bottom: 22px;
+  display: flex;
+  min-height: 38px;
+  align-items: center;
+  gap: 8px;
+  padding: 0 13px;
+  border: 1px solid #c9dcee;
+  border-radius: 7px;
+  color: #4e657d;
+  background: #fff;
+  box-shadow: 0 8px 25px rgb(28 56 86 / 15%);
+  font-size: 11px;
+}
+
+.schedule-busy span {
+  width: 15px;
+  height: 15px;
+  border: 2px solid #b9d4ef;
+  border-top-color: #1978d4;
+  border-radius: 50%;
+  animation: spin .7s linear infinite;
+}
+
+@media (max-width: 1500px) {
+  .schedule-workbench {
+    grid-template-columns: 250px minmax(380px, 1fr) 292px;
+  }
+
+  .schedule-toolbar > div:first-child span,
+  .schedule-canvas-title span {
+    display: none;
+  }
+}
+
+@media (max-width: 1280px) {
+  .schedule-workbench {
+    grid-template-columns: 225px minmax(360px, 1fr) 270px;
+  }
+
+  .schedule-toolbar__actions button {
+    padding: 0 8px;
+  }
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/package.json b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/package.json
new file mode 100644
index 0000000..83ef744
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/package.json
@@ -0,0 +1,30 @@
+{
+  "name": "frontend",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build": "react-router build",
+    "dev": "react-router dev",
+    "start": "react-router-serve ./build/server/index.js",
+    "typecheck": "react-router typegen && tsc"
+  },
+  "dependencies": {
+    "@react-router/node": "^8",
+    "@react-router/serve": "^8",
+    "isbot": "^5.1.36",
+    "react": "^19.2.7",
+    "react-dom": "^19.2.7",
+    "react-router": "^8"
+  },
+  "devDependencies": {
+    "@react-router/dev": "^8",
+    "@tailwindcss/vite": "^4.2.2",
+    "@types/node": "^22",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "tailwindcss": "^4.2.2",
+    "typescript": "^5.9.3",
+    "vite": "^8.0.3"
+  },
+  "packageManager": "pnpm@10.15.1"
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/pnpm-lock.yaml b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/pnpm-lock.yaml
new file mode 100644
index 0000000..c70aa89
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/pnpm-lock.yaml
@@ -0,0 +1,2327 @@
+lockfileVersion: '9.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+importers:
+
+  .:
+    dependencies:
+      '@react-router/node':
+        specifier: ^8
+        version: 8.3.0(react-router@8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8))(typescript@5.9.3)
+      '@react-router/serve':
+        specifier: ^8
+        version: 8.3.0(react-router@8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8))(typescript@5.9.3)
+      isbot:
+        specifier: ^5.1.36
+        version: 5.2.1
+      react:
+        specifier: ^19.2.7
+        version: 19.2.8
+      react-dom:
+        specifier: ^19.2.7
+        version: 19.2.8(react@19.2.8)
+      react-router:
+        specifier: ^8
+        version: 8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8)
+    devDependencies:
+      '@react-router/dev':
+        specifier: ^8
+        version: 8.3.0(@react-router/serve@8.3.0(react-router@8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8))(typescript@5.9.3))(react-router@8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8))(typescript@5.9.3)(vite@8.1.5(@types/node@22.20.1)(jiti@2.7.0))
+      '@tailwindcss/vite':
+        specifier: ^4.2.2
+        version: 4.3.3(vite@8.1.5(@types/node@22.20.1)(jiti@2.7.0))
+      '@types/node':
+        specifier: ^22
+        version: 22.20.1
+      '@types/react':
+        specifier: ^19.2.14
+        version: 19.2.17
+      '@types/react-dom':
+        specifier: ^19.2.3
+        version: 19.2.3(@types/react@19.2.17)
+      tailwindcss:
+        specifier: ^4.2.2
+        version: 4.3.3
+      typescript:
+        specifier: ^5.9.3
+        version: 5.9.3
+      vite:
+        specifier: ^8.0.3
+        version: 8.1.5(@types/node@22.20.1)(jiti@2.7.0)
+
+packages:
+
+  '@babel/code-frame@7.29.7':
+    resolution: {integrity: sha512-Aup7aUOfpbAUg2ROOJN6Iw5f9DMBlzu0mIkm/malLQFN/YQgO48wCj0Kxa3sEHJvPVFg7siR+qRInwXd2qhQKw==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/compat-data@7.29.7':
+    resolution: {integrity: sha512-locTkQyKvwIEgBzVrn8693ebc97F2U8ZHjbXwDXJ5Fn2TCpNwTlKcaKLkdHop5c/icOFE7qt7Q9JC5hnKNa6Gg==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/core@7.29.7':
+    resolution: {integrity: sha512-RgHBCvtjbOK2gXSNBNIkNoEc9qoVEtau3hj8gEqKQuL3HZAibKarWFEI3Lfm6EYKkLalOh8eSrj9b+ch9H/VBA==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/generator@7.29.7':
+    resolution: {integrity: sha512-DkXD5OJQaAQIdZ1bt3UZdEnHAn9Imd3IVBdX03UFe+ony9Ojw5pzr9YVKGDY1jt+Gcn/FnGkNf8r+Vj5NOJWtQ==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-annotate-as-pure@7.29.7':
+    resolution: {integrity: sha512-OoK6239jHPuSQOoS0kfTVKn0b/rVTk0seKq4Gd2UMLtmOVLjDC0ki3e+c90Trqv2gMfvJFqkiljrr568+qddiw==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-compilation-targets@7.29.7':
+    resolution: {integrity: sha512-wem6WaBj4NaVYVdNhLPPVacES6ZJ+KBBfSkTMD3YZxbP3rm3Di85tJU5ljaUNhaOynt+Aj0xruhYuzQBt8n71g==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-create-class-features-plugin@7.29.7':
+    resolution: {integrity: sha512-IY3ZD9Tmooqr3TUhc3DUWxiuo8xx1DWLhd5M7hQ+ZWJamqM2BbalrBJb2MisSLoYorOj75U03qULCxQTY9r3hg==}
+    engines: {node: '>=6.9.0'}
+    peerDependencies:
+      '@babel/core': ^7.0.0
+
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+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-member-expression-to-functions@7.29.7':
+    resolution: {integrity: sha512-j+7JYmk1JYDtACIGj0QJqqWZjoUpMoEikQGADMaHgCMCSDqd2+P32rfcibUNrGOMWrlzK1WJBdxrB3JJQZwWtg==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-module-imports@7.29.7':
+    resolution: {integrity: sha512-ejHwrQQYcm9xnTivShn2IDOlIzInN34AXskvq9QicvCtEzq1Vzclu/tKF8Jq1Cg8JG2GL6/EmjgsCT7lXepE3g==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-module-transforms@7.29.7':
+    resolution: {integrity: sha512-UPUVSyXbOh627KiCIGQSgwWzGeBKLkaJ9PJEdrngIwMSzxLR4jS4+f1f1jb7VzBbg8nFLaYotvVPFCTqdrmTAg==}
+    engines: {node: '>=6.9.0'}
+    peerDependencies:
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+    engines: {node: '>=6.9.0'}
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+    resolution: {integrity: sha512-G7sHYigPY17oO5SYWnfD/0MTBwVR781S/JI643e/JhUYgVgWE/61SoW3NH9KWUKyKq5LVh3npif99Wkt6j86Jw==}
+    engines: {node: '>=6.9.0'}
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+    resolution: {integrity: sha512-atfGXWSeCiF4DnKZIfmJfQRkSw9b9gNNXR1kqKjbhG4pGYCOnkp8OcTB8E3NXjBu8NpheSnOeNKz8KT7UNFTmQ==}
+    engines: {node: '>=6.9.0'}
+    peerDependencies:
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+    resolution: {integrity: sha512-brcMGQaVzIeUb+6/bs1Av0f8YuNNjKY2JyvfRCsFuFsdKccEQ5Ges2y74D74NZ1Rz8lKJ9ksJkfqwQFJ/iNEyQ==}
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+    engines: {node: '>=6.9.0'}
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+
+  setprototypeof@1.2.0: {}
+
+  side-channel-list@1.0.1:
+    dependencies:
+      es-errors: 1.3.0
+      object-inspect: 1.13.4
+
+  side-channel-map@1.0.1:
+    dependencies:
+      call-bound: 1.0.4
+      es-errors: 1.3.0
+      get-intrinsic: 1.3.0
+      object-inspect: 1.13.4
+
+  side-channel-weakmap@1.0.2:
+    dependencies:
+      call-bound: 1.0.4
+      es-errors: 1.3.0
+      get-intrinsic: 1.3.0
+      object-inspect: 1.13.4
+      side-channel-map: 1.0.1
+
+  side-channel@1.1.1:
+    dependencies:
+      es-errors: 1.3.0
+      object-inspect: 1.13.4
+      side-channel-list: 1.0.1
+      side-channel-map: 1.0.1
+      side-channel-weakmap: 1.0.2
+
+  source-map-js@1.2.1: {}
+
+  source-map-support@0.5.21:
+    dependencies:
+      buffer-from: 1.1.2
+      source-map: 0.6.0
+
+  source-map@0.6.0: {}
+
+  statuses@2.0.2: {}
+
+  tailwindcss@4.3.3: {}
+
+  tapable@2.3.3: {}
+
+  tinyglobby@0.2.17:
+    dependencies:
+      fdir: 6.5.0(picomatch@4.0.5)
+      picomatch: 4.0.5
+
+  toidentifier@1.0.1: {}
+
+  tslib@2.8.1:
+    optional: true
+
+  type-is@2.1.0:
+    dependencies:
+      content-type: 2.0.0
+      media-typer: 1.1.1
+      mime-types: 3.0.2
+
+  typescript@5.9.3: {}
+
+  undici-types@6.21.0: {}
+
+  unpipe@1.0.0: {}
+
+  update-browserslist-db@1.2.3(browserslist@4.28.7):
+    dependencies:
+      browserslist: 4.28.7
+      escalade: 3.2.0
+      picocolors: 1.1.1
+
+  valibot@1.4.2(typescript@5.9.3):
+    optionalDependencies:
+      typescript: 5.9.3
+
+  vary@1.1.2: {}
+
+  vite@8.1.5(@types/node@22.20.1)(jiti@2.7.0):
+    dependencies:
+      lightningcss: 1.33.0
+      picomatch: 4.0.5
+      postcss: 8.5.24
+      rolldown: 1.1.5
+      tinyglobby: 0.2.17
+    optionalDependencies:
+      '@types/node': 22.20.1
+      fsevents: 2.3.3
+      jiti: 2.7.0
+
+  wrappy@1.0.2: {}
+
+  yallist@3.1.1: {}
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diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/react-router.config.ts b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/react-router.config.ts
new file mode 100644
index 0000000..b8b143a
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/react-router.config.ts
@@ -0,0 +1,7 @@
+import type { Config } from "@react-router/dev/config";
+
+export default {
+  // Config options...
+  // Server-side render by default, to enable SPA mode set this to `false`
+  ssr: false,
+} satisfies Config;
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/tsconfig.json b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/tsconfig.json
new file mode 100644
index 0000000..cbe49c7
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/tsconfig.json
@@ -0,0 +1,26 @@
+{
+  "include": [
+    "**/*",
+    "**/.server/**/*",
+    "**/.client/**/*",
+    ".react-router/types/**/*"
+  ],
+  "compilerOptions": {
+    "lib": ["DOM", "DOM.Iterable", "ES2022"],
+    "types": ["node", "vite/client"],
+    "target": "ES2022",
+    "module": "ES2022",
+    "moduleResolution": "bundler",
+    "jsx": "react-jsx",
+    "rootDirs": [".", "./.react-router/types"],
+    "paths": {
+      "~/*": ["./app/*"]
+    },
+    "esModuleInterop": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+    "resolveJsonModule": true,
+    "skipLibCheck": true,
+    "strict": true
+  }
+}
diff --git a/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/vite.config.ts b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/vite.config.ts
new file mode 100644
index 0000000..cd65060
--- /dev/null
+++ b/.pnpm-store/v11/projects/2dad80fd1dced2194639b53db6e470b3/vite.config.ts
@@ -0,0 +1,21 @@
+import { reactRouter } from "@react-router/dev/vite";
+import { defineConfig } from "vite";
+
+export default defineConfig({
+  plugins: [reactRouter()],
+  server: {
+    host: "0.0.0.0",
+    port: 5173,
+    proxy: {
+      "/api": {
+        target: process.env.VITE_GATEWAY_URL || "http://127.0.0.1:8081",
+        changeOrigin: true,
+      },
+      "/jupyter": {
+        target: process.env.VITE_GATEWAY_URL || "http://127.0.0.1:8081",
+        changeOrigin: true,
+        ws: true,
+      },
+    },
+  },
+});
diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
new file mode 100644
index 0000000..633687e
--- /dev/null
+++ b/ARCHITECTURE.md
@@ -0,0 +1,39 @@
+# 简化系统架构
+
+```text
+Browser
+  |
+  v
+Nginx Gateway (静态 React Router SPA + /api + /jupyter 代理)
+  |-----------------------------|
+  | /api/v1                     | /jupyter/
+  v                             v
+FastAPI Backend              Shared Jupyter Server
+  |                             ^
+  | Runtime HTTP                | Runtime 管理会话/票据
+  v                             |
+Runtime Manager ---------------|
+  |
+  +------ MySQL（编辑租约、运行实例）
+
+FastAPI Backend
+  | 1. 写 schedule_runs + outbox_events
+  | 2. 尝试 HTTP 立即推送
+  v
+Schedule Executor（APScheduler）
+  |-- MySQL APSchedulerJobStore
+  |-- MySQL Outbox 轮询兜底
+  |-- DAG 节点执行与重试
+  |-- RustFS 日志/结果
+  +-- Backend 内部 Storage API
+```
+
+## 关键简化
+
+1. 删除 Redis 服务、Redis Streams 和 Redis 文件锁。
+2. 调度定义、运行记录、Outbox、Inbox、Cron JobStore 都由 MySQL 保存。
+3. 立即运行采用 Backend -> Schedule Executor 内部 HTTP 推送；推送失败由 MySQL Outbox 轮询兜底。
+4. Schedule Executor 自带 APScheduler，负责 Cron 触发和 DAG 执行。
+5. 文件编辑锁改为 MySQL 租约，Runtime 单副本运行。
+6. Jupyter 使用一个共享容器，工作区目录通过 Volume 挂载同步。
+7. 前端改为 React Router SPA，并按 feature / route / service / component 分层。
diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..32cb110
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,64 @@
+# Repository Guide
+
+## Current architecture
+
+- `frontend`: React Router SPA. Production files are built in `nginx/Dockerfile`.
+- `backend`: public FastAPI API and internal RustFS storage API in one process.
+- `runtime`: shared Jupyter lifecycle, MySQL edit leases and short-lived in-memory access tickets.
+- `schedule`: APScheduler, MySQL JobStore, MySQL Outbox polling and DAG execution.
+- `common`: SQLAlchemy models, database/session helpers, IDs and object-store helpers.
+- `migrations`: Alembic schema and seed migrations.
+- `nginx`: static frontend, `/api/` proxy and authenticated `/jupyter/` proxy.
+
+Redis and the former separate Storage API container are intentionally removed.
+
+## Commands
+
+From the repository root:
+
+```bash
+# Local Python workspace
+uv sync --all-packages
+
+# Static Python check
+python -m compileall common/src backend/src runtime/src schedule/src
+
+# Database migration
+uv run --package backend alembic upgrade head
+
+# Full Docker stack
+cp .env.example .env
+docker compose config
+docker compose up -d --build
+```
+
+Frontend development:
+
+```bash
+cd frontend
+pnpm install
+pnpm dev
+pnpm typecheck
+pnpm build
+```
+
+## Service rules
+
+- Browser traffic enters through Gateway only.
+- Frontend API calls use same-origin `/api/v1/...` paths.
+- Backend writes `schedule_runs` and `outbox_events`, then performs best-effort HTTP dispatch to Schedule Executor.
+- Schedule Executor always polls pending MySQL Outbox rows, so HTTP dispatch failure does not lose a task.
+- Cron jobs are persisted by APScheduler in MySQL table `apscheduler_jobs`.
+- Runtime must stay single-replica while file leases and Jupyter tickets use the simplified implementation.
+- Never expose the internal Jupyter token to the browser.
+- Never delete Docker volumes when preserving MySQL or RustFS data is required.
+
+## Main entrypoints
+
+```text
+frontend/app/routes/platform.tsx
+backend/src/backend/main.py
+runtime/src/runtime/main.py
+schedule/src/schedule/main.py
+nginx/default.conf.template
+```
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c8f71cd
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,22 @@
+.PHONY: sync backend runtime schedule migrate up down
+
+sync:
+	uv sync --all-packages
+
+backend:
+	uv run --package backend uvicorn backend.main:app --host 0.0.0.0 --port 8010 --reload
+
+runtime:
+	uv run --package runtime uvicorn runtime.main:app --host 0.0.0.0 --port 8012 --reload
+
+schedule:
+	uv run --package schedule uvicorn schedule.main:app --host 0.0.0.0 --port 8013 --reload
+
+migrate:
+	uv run --package backend alembic upgrade head
+
+up:
+	docker compose up -d --build
+
+down:
+	docker compose down
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..85dbcc9
--- /dev/null
+++ b/README.md
@@ -0,0 +1,69 @@
+# Model Platform Refactored
+
+本项目是简化后的模型实验开发平台：React Router 前端、FastAPI Backend、
+Runtime、Schedule Executor、MySQL、RustFS、共享 Jupyter 与 Nginx Gateway。
+Redis 已移除。
+
+## 目录
+
+```text
+frontend/app/
+  components/          通用组件
+  features/platform/   平台主框架与脚本工作台
+  features/schedules/  调度画布
+  features/admin/      工作台与系统管理
+  routes/              React Router 路由
+  services/            API 调用与 DTO
+backend/                核心业务 API
+runtime/                Jupyter 与文件编辑租约
+schedule/               APScheduler + DAG Executor
+common/                 数据库模型和公共能力
+nginx/                  前端静态站点与统一反向代理
+```
+
+## 简化后的调用链
+
+```text
+Browser -> Nginx Gateway -> FastAPI Backend -> MySQL / RustFS
+                         -> Runtime -> shared Jupyter
+Backend --HTTP push-----> Schedule Executor
+Schedule Executor --poll MySQL Outbox / APScheduler--> execute DAG
+```
+
+## 启动
+
+Windows PowerShell：
+
+```powershell
+Copy-Item .env.example .env
+docker compose config
+docker compose up -d --build
+docker compose ps
+```
+
+Git Bash/Linux：
+
+```bash
+cp .env.example .env
+docker compose config
+docker compose up -d --build
+docker compose ps
+```
+
+访问：`http://127.0.0.1:8081`。
+
+查看日志：
+
+```bash
+docker compose logs -f backend runtime schedule gateway
+```
+
+数据库迁移由 `migrate` 一次性容器在 Backend 启动前自动执行。
+
+## Windows 快速脚本
+
+```powershell
+.\scripts\start.ps1
+.\scripts\logs.ps1
+.\scripts\stop.ps1
+```
diff --git a/REFACTOR_NOTES.md b/REFACTOR_NOTES.md
new file mode 100644
index 0000000..4b17b93
--- /dev/null
+++ b/REFACTOR_NOTES.md
@@ -0,0 +1,56 @@
+# 本次重构说明
+
+## 已完成
+
+### 前端
+
+- 将原 `frontend/src` 页面迁入 React Router SPA 结构；
+- 主入口改为 `app/routes/platform.tsx`；
+- 拆分为 `components / features / routes / services / styles`；
+- 保留脚本管理、目录管理、Jupyter 编辑、版本发布、调度画布、运行记录和系统管理功能；
+- 将原 Hash 页面切换改为 React Router 路径：`/`、`/scripts`、`/schedules`、`/system`；
+- Nginx 使用 SPA fallback，刷新子路径不会 404。
+
+### 后端
+
+- 合并 Platform API 和 Storage API 到同一个 `backend` 进程；
+- 删除 Redis 容器、依赖、Streams 消费和锁实现；
+- 文件锁改为 MySQL `edit_sessions` 租约；
+- Jupyter 短期票据由单 Runtime 进程内存保存；
+- Schedule Executor 内置 APScheduler，并使用 MySQL `apscheduler_jobs`；
+- Backend 创建运行和 Outbox 后，通过内部 HTTP 尝试立即推送；
+- Schedule Executor 轮询 MySQL Outbox 作为失败兜底；
+- 增加迁移 `20260730_0004`，兼容旧数据库的 `redis_lock_key -> lock_key`。
+
+### Docker
+
+最终容器：
+
+```text
+mysql
+rustfs
+jupyter
+migrate（一次性）
+backend
+runtime
+schedule
+gateway
+```
+
+## 已执行检查
+
+- Python 全项目 `compileall` 通过；
+- SQLAlchemy 模型导入通过，共加载 26 张表；
+- Alembic `upgrade head --sql` 离线生成通过；
+- `docker-compose.yml` YAML 解析通过；
+- 前端 feature、route 和 root 文件 TypeScript 静态检查通过。
+
+## 未在当前沙箱执行
+
+当前执行环境没有 Docker 命令，并且无法连接 npm/PyPI，因此没有在沙箱内完成：
+
+- `docker compose up --build`；
+- 正式 `pnpm install && pnpm build`；
+- Python 依赖在线安装后的集成测试。
+
+请在安装了 Docker Desktop且网络可访问依赖仓库的 Windows 电脑上执行根目录 README 中的启动命令。
diff --git a/alembic.ini b/alembic.ini
new file mode 100644
index 0000000..c1c4732
--- /dev/null
+++ b/alembic.ini
@@ -0,0 +1,41 @@
+[alembic]
+script_location = %(here)s/migrations
+prepend_sys_path = .
+path_separator = os
+
+# 真实连接串必须通过 DATABASE_URL 注入，禁止在仓库内保存数据库密码。
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/backend/.gitignore b/backend/.gitignore
new file mode 100644
index 0000000..505a3b1
--- /dev/null
+++ b/backend/.gitignore
@@ -0,0 +1,10 @@
+# Python-generated files
+__pycache__/
+*.py[oc]
+build/
+dist/
+wheels/
+*.egg-info
+
+# Virtual environments
+.venv
diff --git a/backend/.python-version b/backend/.python-version
new file mode 100644
index 0000000..e4fba21
--- /dev/null
+++ b/backend/.python-version
@@ -0,0 +1 @@
+3.12
diff --git a/backend/Dockerfile b/backend/Dockerfile
new file mode 100644
index 0000000..a76c832
--- /dev/null
+++ b/backend/Dockerfile
@@ -0,0 +1,13 @@
+FROM python:3.12-slim-bookworm
+
+ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1 PYTHONPATH=/app
+WORKDIR /app
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
+COPY common ./common
+COPY backend ./backend
+COPY alembic.ini ./
+COPY migrations ./migrations
+RUN uv pip install --system ./common ./backend
+
+EXPOSE 8000
+CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8000"]
diff --git a/backend/README.md b/backend/README.md
new file mode 100644
index 0000000..eea5476
--- /dev/null
+++ b/backend/README.md
@@ -0,0 +1,5 @@
+# Backend
+
+统一 FastAPI 管理服务。包含用户、Workspace、脚本、稳定版本、调度定义、
+立即运行以及 RustFS 对象接口。原 `platform_api` 与 `storage_api` 已在此
+模块合并，外部 REST 契约保持不变。
diff --git a/backend/pyproject.toml b/backend/pyproject.toml
new file mode 100644
index 0000000..f8a6b83
--- /dev/null
+++ b/backend/pyproject.toml
@@ -0,0 +1,23 @@
+[project]
+name = "backend"
+version = "0.2.0"
+requires-python = ">=3.12"
+dependencies = [
+    "common",
+    "fastapi==0.116.1",
+    "uvicorn[standard]==0.35.0",
+    "httpx==0.28.1",
+    "croniter==6.2.4",
+    "alembic==1.18.5",
+    "cryptography==49.0.0",
+]
+
+[tool.uv.sources]
+common = { path = "../common" }
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/backend"]
diff --git a/backend/src/backend/__init__.py b/backend/src/backend/__init__.py
new file mode 100644
index 0000000..d90a9a5
--- /dev/null
+++ b/backend/src/backend/__init__.py
@@ -0,0 +1 @@
+"""Platform API application."""
diff --git a/backend/src/backend/admin.py b/backend/src/backend/admin.py
new file mode 100644
index 0000000..d911bd7
--- /dev/null
+++ b/backend/src/backend/admin.py
@@ -0,0 +1,218 @@
+from __future__ import annotations
+
+from typing import Any, Literal
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from pydantic import BaseModel, ConfigDict, Field
+from sqlalchemy import delete, func, or_, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db.models import Roles, Users, WorkspaceMembers
+from common.ids import new_ulid
+from backend.dependencies import (
+    RequestContext,
+    database_session,
+    request_context,
+)
+
+
+router = APIRouter(prefix="/api/v1/admin", tags=["admin"])
+
+
+class EmployeeCreate(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    username: str = Field(min_length=2, max_length=64)
+    display_name: str = Field(min_length=1, max_length=100)
+    email: str | None = Field(default=None, max_length=255)
+    role_code: Literal["admin", "developer"] = "developer"
+
+
+class EmployeeUpdate(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    display_name: str | None = Field(default=None, min_length=1, max_length=100)
+    email: str | None = Field(default=None, max_length=255)
+    role_code: Literal["admin", "developer"] | None = None
+    status: Literal["active", "disabled", "locked"] | None = None
+
+
+def require_admin(context: RequestContext) -> None:
+    if not context.is_admin:
+        raise HTTPException(status.HTTP_403_FORBIDDEN, "仅管理员可以管理员工")
+
+
+def employee_payload(user: Users, role: Roles) -> dict[str, Any]:
+    return {
+        "user_id": user.user_id,
+        "username": user.username,
+        "display_name": user.display_name,
+        "email": user.email,
+        "status": user.status,
+        "role_code": role.role_code,
+        "role_name": role.role_name,
+        "created_at": user.created_at.isoformat(),
+    }
+
+
+async def member_row(
+    user_id: str,
+    context: RequestContext,
+    session: AsyncSession,
+) -> tuple[Users, WorkspaceMembers, Roles]:
+    row = (
+        await session.execute(
+            select(Users, WorkspaceMembers, Roles)
+            .join(
+                WorkspaceMembers,
+                WorkspaceMembers.user_id == Users.user_id,
+            )
+            .join(Roles, Roles.role_id == WorkspaceMembers.role_id)
+            .where(
+                WorkspaceMembers.workspace_id == context.workspace.workspace_id,
+                Users.user_id == user_id,
+            )
+        )
+    ).first()
+    if row is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "员工不存在")
+    return row
+
+
+@router.get("/employees")
+async def list_employees(
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    rows = (
+        await session.execute(
+            select(Users, Roles)
+            .join(
+                WorkspaceMembers,
+                WorkspaceMembers.user_id == Users.user_id,
+            )
+            .join(Roles, Roles.role_id == WorkspaceMembers.role_id)
+            .where(
+                WorkspaceMembers.workspace_id == context.workspace.workspace_id,
+                WorkspaceMembers.member_status == "active",
+            )
+            .order_by(Users.created_at, Users.user_id)
+        )
+    ).all()
+    return {
+        "request_id": context.request_id,
+        "data": [employee_payload(user, role) for user, role in rows],
+        "meta": {"count": len(rows), "can_manage": context.is_admin},
+    }
+
+
+@router.post("/employees", status_code=status.HTTP_201_CREATED)
+async def create_employee(
+    payload: EmployeeCreate,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    require_admin(context)
+    username = payload.username.strip()
+    display_name = payload.display_name.strip()
+    duplicate_conditions = [Users.username == username]
+    if payload.email:
+        duplicate_conditions.append(Users.email == payload.email.strip())
+    duplicate = await session.scalar(
+        select(Users.user_id).where(or_(*duplicate_conditions))
+    )
+    if duplicate is not None:
+        raise HTTPException(status.HTTP_409_CONFLICT, "用户名或邮箱已存在")
+    role = await session.scalar(
+        select(Roles).where(Roles.role_code == payload.role_code)
+    )
+    if role is None:
+        raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "角色不存在")
+    user = Users(
+        user_id=new_ulid(),
+        username=username,
+        display_name=display_name,
+        email=payload.email.strip() if payload.email else None,
+        password_hash="demo-login-disabled",
+        status="active",
+    )
+    session.add(user)
+    session.add(
+        WorkspaceMembers(
+            workspace_id=context.workspace.workspace_id,
+            user_id=user.user_id,
+            role_id=role.role_id,
+            member_status="active",
+        )
+    )
+    await session.flush()
+    await session.refresh(user)
+    return {
+        "request_id": context.request_id,
+        "data": employee_payload(user, role),
+        "meta": {},
+    }
+
+
+@router.patch("/employees/{user_id}")
+async def update_employee(
+    user_id: str,
+    payload: EmployeeUpdate,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    require_admin(context)
+    user, membership, role = await member_row(user_id, context, session)
+    if payload.display_name is not None:
+        user.display_name = payload.display_name.strip()
+    if payload.email is not None:
+        user.email = payload.email.strip() or None
+    if payload.status is not None:
+        user.status = payload.status
+    if payload.role_code is not None and payload.role_code != role.role_code:
+        next_role = await session.scalar(
+            select(Roles).where(Roles.role_code == payload.role_code)
+        )
+        if next_role is None:
+            raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "角色不存在")
+        membership.role_id = next_role.role_id
+        role = next_role
+    await session.flush()
+    await session.refresh(user)
+    return {
+        "request_id": context.request_id,
+        "data": employee_payload(user, role),
+        "meta": {},
+    }
+
+
+@router.delete("/employees/{user_id}")
+async def delete_employee(
+    user_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    require_admin(context)
+    if user_id == context.user.user_id:
+        raise HTTPException(status.HTTP_409_CONFLICT, "不能删除当前登录员工")
+    user, _, role = await member_row(user_id, context, session)
+    if role.role_code == "admin":
+        raise HTTPException(status.HTTP_409_CONFLICT, "管理员账号不能删除")
+    await session.execute(
+        delete(WorkspaceMembers).where(
+            WorkspaceMembers.workspace_id == context.workspace.workspace_id,
+            WorkspaceMembers.user_id == user_id,
+        )
+    )
+    memberships = await session.scalar(
+        select(func.count())
+        .select_from(WorkspaceMembers)
+        .where(WorkspaceMembers.user_id == user_id)
+    )
+    if memberships == 0:
+        user.status = "disabled"
+    return {
+        "request_id": context.request_id,
+        "data": {"user_id": user_id, "deleted": True},
+        "meta": {},
+    }
diff --git a/backend/src/backend/dependencies.py b/backend/src/backend/dependencies.py
new file mode 100644
index 0000000..f646a77
--- /dev/null
+++ b/backend/src/backend/dependencies.py
@@ -0,0 +1,79 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import AsyncIterator
+
+from fastapi import Header, HTTPException, Request, status
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db.models import (
+    Roles,
+    Users,
+    WorkspaceMembers,
+    Workspaces,
+)
+from common.ids import new_ulid
+
+
+@dataclass(frozen=True)
+class RequestContext:
+    request_id: str
+    user: Users
+    workspace: Workspaces
+    role: Roles
+
+    @property
+    def is_admin(self) -> bool:
+        return self.role.role_code == "admin"
+
+
+async def database_session(request: Request) -> AsyncIterator[AsyncSession]:
+    async with request.app.state.session_factory() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise
+
+
+async def request_context(
+    request: Request,
+    x_user_id: str = Header(alias="X-User-ID"),
+    x_workspace_id: str = Header(alias="X-Workspace-ID"),
+    x_request_id: str | None = Header(default=None, alias="X-Request-ID"),
+) -> RequestContext:
+    async with request.app.state.session_factory() as session:
+        statement = (
+            select(Users, Workspaces, Roles)
+            .join(
+                WorkspaceMembers,
+                WorkspaceMembers.user_id == Users.user_id,
+            )
+            .join(
+                Workspaces,
+                Workspaces.workspace_id == WorkspaceMembers.workspace_id,
+            )
+            .join(Roles, Roles.role_id == WorkspaceMembers.role_id)
+            .where(
+                Users.user_id == x_user_id,
+                Users.status == "active",
+                WorkspaceMembers.workspace_id == x_workspace_id,
+                WorkspaceMembers.member_status == "active",
+                Workspaces.status == "active",
+            )
+        )
+        row = (await session.execute(statement)).one_or_none()
+        if row is None:
+            raise HTTPException(
+                status.HTTP_403_FORBIDDEN,
+                "active workspace membership is required",
+            )
+        user, workspace, role = row
+        return RequestContext(
+            request_id=x_request_id or new_ulid(),
+            user=user,
+            workspace=workspace,
+            role=role,
+        )
diff --git a/backend/src/backend/file_locks.py b/backend/src/backend/file_locks.py
new file mode 100644
index 0000000..7a82cb3
--- /dev/null
+++ b/backend/src/backend/file_locks.py
@@ -0,0 +1,110 @@
+from __future__ import annotations
+
+from typing import Any, Awaitable, Callable
+
+from fastapi import APIRouter, Depends, Request, status
+from fastapi.responses import JSONResponse
+
+from backend.dependencies import (
+    RequestContext,
+    request_context,
+)
+from backend.runtime_client import RuntimeClientError
+from backend.schemas import FileLockTokenRequest
+
+
+router = APIRouter(tags=["file-locks"])
+
+
+async def runtime_response(
+    context: RequestContext,
+    operation: Callable[[], Awaitable[dict[str, Any]]],
+    *,
+    success_status: int = status.HTTP_200_OK,
+) -> JSONResponse:
+    try:
+        data = await operation()
+    except RuntimeClientError as exc:
+        error = exc.detail
+        if not isinstance(error, dict) or "code" not in error:
+            error = {
+                "code": "RUNTIME_REQUEST_FAILED",
+                "message": str(error),
+                "retryable": exc.status_code >= 500,
+                "details": {},
+            }
+        return JSONResponse(
+            status_code=exc.status_code,
+            content={"request_id": context.request_id, "error": error},
+        )
+    return JSONResponse(
+        status_code=success_status,
+        content={
+            "request_id": context.request_id,
+            "data": data,
+            "meta": {},
+        },
+    )
+
+
+@router.post(
+    "/api/v1/files/{storage_object_id}/lock",
+    status_code=status.HTTP_201_CREATED,
+)
+async def acquire_file_lock(
+    storage_object_id: str,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+) -> JSONResponse:
+    return await runtime_response(
+        context,
+        lambda: request.app.state.runtime_client.acquire_file_lock(
+            {
+                "workspace_id": context.workspace.workspace_id,
+                "storage_object_id": storage_object_id,
+                "user_id": context.user.user_id,
+                "request_id": context.request_id,
+            }
+        ),
+        success_status=status.HTTP_201_CREATED,
+    )
+
+
+@router.post("/api/v1/file-locks/{edit_session_id}/heartbeat")
+async def heartbeat_file_lock(
+    edit_session_id: str,
+    payload: FileLockTokenRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+) -> JSONResponse:
+    return await runtime_response(
+        context,
+        lambda: request.app.state.runtime_client.heartbeat_file_lock(
+            edit_session_id,
+            {
+                "workspace_id": context.workspace.workspace_id,
+                "user_id": context.user.user_id,
+                "lock_token": payload.lock_token,
+            },
+        ),
+    )
+
+
+@router.delete("/api/v1/file-locks/{edit_session_id}")
+async def release_file_lock(
+    edit_session_id: str,
+    payload: FileLockTokenRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+) -> JSONResponse:
+    return await runtime_response(
+        context,
+        lambda: request.app.state.runtime_client.release_file_lock(
+            edit_session_id,
+            {
+                "workspace_id": context.workspace.workspace_id,
+                "user_id": context.user.user_id,
+                "lock_token": payload.lock_token,
+            },
+        ),
+    )
diff --git a/backend/src/backend/jupyter.py b/backend/src/backend/jupyter.py
new file mode 100644
index 0000000..bf68028
--- /dev/null
+++ b/backend/src/backend/jupyter.py
@@ -0,0 +1,84 @@
+from __future__ import annotations
+
+import os
+
+from fastapi import APIRouter, Depends, Request, status
+from fastapi.responses import JSONResponse
+
+from backend.dependencies import (
+    RequestContext,
+    request_context,
+)
+from backend.runtime_client import RuntimeClientError
+from backend.schemas import (
+    CreateJupyterAccessTicketRequest,
+)
+
+
+router = APIRouter(tags=["jupyter"])
+
+
+def cookie_secure() -> bool:
+    return os.getenv("COOKIE_SECURE", "false").strip().lower() in {
+        "1",
+        "true",
+        "yes",
+        "on",
+    }
+
+
+@router.post(
+    "/api/v1/jupyter/access-tickets",
+    status_code=status.HTTP_201_CREATED,
+)
+async def create_jupyter_access_ticket(
+    payload: CreateJupyterAccessTicketRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+) -> JSONResponse:
+    try:
+        ticket_data = (
+            await request.app.state.runtime_client
+            .create_jupyter_access_ticket(
+                payload.edit_session_id,
+                {
+                    "workspace_id": context.workspace.workspace_id,
+                    "user_id": context.user.user_id,
+                    "lock_token": payload.lock_token,
+                },
+            )
+        )
+    except RuntimeClientError as exc:
+        error = exc.detail
+        if not isinstance(error, dict) or "code" not in error:
+            error = {
+                "code": "JUPYTER_TICKET_FAILED",
+                "message": str(error),
+                "retryable": exc.status_code >= 500,
+                "details": {},
+            }
+        return JSONResponse(
+            status_code=exc.status_code,
+            content={"request_id": context.request_id, "error": error},
+        )
+
+    raw_ticket = ticket_data.pop("ticket")
+    max_age = int(ticket_data.pop("expires_in_seconds"))
+    response = JSONResponse(
+        status_code=status.HTTP_201_CREATED,
+        content={
+            "request_id": context.request_id,
+            "data": ticket_data,
+            "meta": {},
+        },
+    )
+    response.set_cookie(
+        key="jupyter_access",
+        value=raw_ticket,
+        max_age=max_age,
+        path="/jupyter/",
+        secure=cookie_secure(),
+        httponly=True,
+        samesite="lax",
+    )
+    return response
diff --git a/backend/src/backend/main.py b/backend/src/backend/main.py
new file mode 100644
index 0000000..976b952
--- /dev/null
+++ b/backend/src/backend/main.py
@@ -0,0 +1,108 @@
+from __future__ import annotations
+
+import asyncio
+import os
+from contextlib import asynccontextmanager
+from pathlib import Path
+from typing import Any, AsyncIterator
+
+import httpx
+from fastapi.routing import APIRoute
+
+from common.db import create_database_engine, create_session_factory
+from common.service_app import create_service_app
+from common.storage import RustFSObjectStore
+from backend.admin import router as admin_router
+from backend.file_locks import router as file_locks_router
+from backend.jupyter import router as jupyter_router
+from backend.resources import router as resources_router
+from backend.runtime_client import RuntimeClient
+from backend.schedule_runs import router as schedule_runs_router
+from backend.schedule_client import ScheduleExecutorClient
+from backend.schedules import router as schedules_router
+from backend.scripts import router as scripts_router
+from backend.storage_api import app as storage_app
+from backend.storage_client import StorageClient
+
+
+@asynccontextmanager
+async def lifespan(app: Any) -> AsyncIterator[None]:
+    engine = create_database_engine(os.environ["DATABASE_URL"])
+    app.state.session_factory = create_session_factory(engine)
+    workspace_root = Path(
+        os.getenv("WORKSPACE_ROOT", "/workspace/workspaces")
+    )
+    workspace_root.mkdir(parents=True, exist_ok=True)
+
+    # Storage API is now part of the backend process. Platform routers keep
+    # their existing client contract, but calls are dispatched in-process.
+    app.state.object_store = RustFSObjectStore(
+        internal_endpoint=os.getenv(
+            "RUSTFS_INTERNAL_ENDPOINT",
+            "http://rustfs:9000",
+        ),
+        public_endpoint=os.getenv(
+            "RUSTFS_PUBLIC_ENDPOINT",
+            "http://localhost:9000",
+        ),
+        access_key=os.environ["RUSTFS_ACCESS_KEY"],
+        secret_key=os.environ["RUSTFS_SECRET_KEY"],
+    )
+    app.state.default_bucket = os.getenv(
+        "RUSTFS_DEFAULT_BUCKET",
+        "model-platform",
+    )
+    await asyncio.to_thread(
+        app.state.object_store.ensure_bucket,
+        app.state.default_bucket,
+    )
+    storage_http_client = httpx.AsyncClient(
+        transport=httpx.ASGITransport(app=app),
+        base_url="http://backend.internal",
+        timeout=httpx.Timeout(30.0),
+    )
+    app.state.storage_client = StorageClient(
+        storage_http_client,
+        os.environ["INTERNAL_SERVICE_TOKEN"],
+    )
+    runtime_http_client = httpx.AsyncClient(
+        base_url=os.getenv("RUNTIME_API_URL", "http://runtime:8000"),
+        timeout=httpx.Timeout(30.0),
+    )
+    app.state.runtime_client = RuntimeClient(
+        runtime_http_client,
+        os.environ["INTERNAL_SERVICE_TOKEN"],
+    )
+    schedule_http_client = httpx.AsyncClient(
+        base_url=os.getenv("SCHEDULE_API_URL", "http://schedule:8000"),
+        timeout=httpx.Timeout(10.0),
+    )
+    app.state.schedule_client = ScheduleExecutorClient(
+        schedule_http_client,
+        os.environ["INTERNAL_SERVICE_TOKEN"],
+    )
+    try:
+        yield
+    finally:
+        await runtime_http_client.aclose()
+        await schedule_http_client.aclose()
+        await storage_http_client.aclose()
+        await engine.dispose()
+
+
+app = create_service_app(
+    os.getenv("SERVICE_NAME", "backend"),
+    lifespan=lifespan,
+)
+app.include_router(file_locks_router)
+app.include_router(jupyter_router)
+app.include_router(resources_router)
+app.include_router(schedule_runs_router)
+app.include_router(schedules_router)
+app.include_router(scripts_router)
+app.include_router(admin_router)
+
+# Reuse the proven storage endpoints without running another FastAPI service.
+for route in storage_app.routes:
+    if isinstance(route, APIRoute) and route.path.startswith("/internal/"):
+        app.router.routes.append(route)
diff --git a/backend/src/backend/resources.py b/backend/src/backend/resources.py
new file mode 100644
index 0000000..14a4d7b
--- /dev/null
+++ b/backend/src/backend/resources.py
@@ -0,0 +1,293 @@
+from __future__ import annotations
+
+from datetime import UTC, datetime
+from typing import Any
+
+from fastapi import APIRouter, Depends, Header, HTTPException, Query, Request, status
+from sqlalchemy import or_, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db.models import DataResources, StorageObjects
+from common.ids import new_ulid
+from backend.dependencies import (
+    RequestContext,
+    database_session,
+    request_context,
+)
+from backend.schemas import (
+    CompleteResourceUploadRequest,
+    CreateResourceUploadRequest,
+    DownloadUrlRequest,
+)
+
+router = APIRouter(prefix="/api/v1/data-resources", tags=["data-resources"])
+
+
+def resource_payload(
+    resource: DataResources,
+    storage_object: StorageObjects,
+) -> dict[str, Any]:
+    return {
+        "resource_id": resource.resource_id,
+        "workspace_id": resource.workspace_id,
+        "storage_object_id": resource.storage_object_id,
+        "owner_user_id": resource.owner_user_id,
+        "resource_name": resource.resource_name,
+        "description": resource.description,
+        "visibility": resource.visibility,
+        "status": resource.status,
+        "created_at": resource.created_at.isoformat(),
+        "updated_at": resource.updated_at.isoformat(),
+        "file": {
+            "file_name": storage_object.file_name,
+            "file_extension": storage_object.file_extension,
+            "mime_type": storage_object.mime_type,
+            "size_bytes": storage_object.size_bytes,
+            "content_hash": storage_object.content_hash,
+            "object_status": storage_object.object_status,
+        },
+    }
+
+
+def can_view(resource: DataResources, context: RequestContext) -> bool:
+    return (
+        resource.owner_user_id == context.user.user_id
+        or resource.visibility in {"workspace", "public"}
+        or context.is_admin
+    )
+
+
+@router.post("/uploads", status_code=status.HTTP_201_CREATED)
+async def create_resource_upload(
+    payload: CreateResourceUploadRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    idempotency_key: str = Header(
+        min_length=8,
+        max_length=128,
+        alias="Idempotency-Key",
+    ),
+) -> dict[str, Any]:
+    data = await request.app.state.storage_client.create_upload(
+        {
+            "workspace_id": context.workspace.workspace_id,
+            "user_id": context.user.user_id,
+            "usage_type": "data_resource",
+            "file_name": payload.file_name,
+            "content_type": payload.content_type,
+            "expected_size_bytes": payload.expected_size_bytes,
+            "expected_hash": payload.expected_hash,
+            "idempotency_key": idempotency_key,
+            "url_scope": "public",
+        }
+    )
+    return {"request_id": context.request_id, "data": data, "meta": {}}
+
+
+@router.post("/uploads/{upload_id}/complete")
+async def complete_resource_upload(
+    upload_id: str,
+    payload: CompleteResourceUploadRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    storage_data = await request.app.state.storage_client.complete_upload(
+        upload_id,
+        {
+            "usage_type": "data_resource",
+            "visibility": payload.visibility,
+            "is_immutable": False,
+        },
+    )
+    if storage_data["workspace_id"] != context.workspace.workspace_id:
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "upload belongs to another workspace",
+        )
+    if storage_data["owner_user_id"] != context.user.user_id:
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "upload belongs to another user",
+        )
+    existing = await session.scalar(
+        select(DataResources).where(
+            DataResources.storage_object_id
+            == storage_data["storage_object_id"]
+        )
+    )
+    reused = existing is not None
+    if existing is None:
+        existing = DataResources(
+            resource_id=new_ulid(),
+            workspace_id=context.workspace.workspace_id,
+            storage_object_id=storage_data["storage_object_id"],
+            owner_user_id=context.user.user_id,
+            resource_name=payload.resource_name,
+            description=payload.description,
+            visibility=payload.visibility,
+            status="active",
+        )
+        session.add(existing)
+        await session.flush()
+        await session.refresh(existing)
+    storage_object = await session.get(
+        StorageObjects,
+        existing.storage_object_id,
+    )
+    if storage_object is None:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "storage object metadata is missing",
+        )
+    return {
+        "request_id": context.request_id,
+        "data": resource_payload(existing, storage_object),
+        "meta": {"reused": reused},
+    }
+
+
+@router.get("")
+async def list_resources(
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+    visibility: str | None = Query(default=None),
+    keyword: str | None = Query(default=None, max_length=100),
+) -> dict[str, Any]:
+    statement = (
+        select(DataResources, StorageObjects)
+        .join(
+            StorageObjects,
+            StorageObjects.storage_object_id
+            == DataResources.storage_object_id,
+        )
+        .where(
+            DataResources.workspace_id == context.workspace.workspace_id,
+            DataResources.status == "active",
+            StorageObjects.object_status == "available",
+        )
+        .order_by(DataResources.updated_at.desc())
+    )
+    if not context.is_admin:
+        statement = statement.where(
+            or_(
+                DataResources.owner_user_id == context.user.user_id,
+                DataResources.visibility.in_(["workspace", "public"]),
+            )
+        )
+    if visibility:
+        if visibility not in {"private", "workspace", "public"}:
+            raise HTTPException(
+                status.HTTP_422_UNPROCESSABLE_ENTITY,
+                "invalid visibility",
+            )
+        statement = statement.where(DataResources.visibility == visibility)
+    if keyword:
+        statement = statement.where(
+            DataResources.resource_name.like(f"%{keyword.strip()}%")
+        )
+    rows = (await session.execute(statement)).all()
+    return {
+        "request_id": context.request_id,
+        "data": [
+            resource_payload(resource, storage_object)
+            for resource, storage_object in rows
+        ],
+        "meta": {"count": len(rows)},
+    }
+
+
+async def get_visible_resource(
+    resource_id: str,
+    context: RequestContext,
+    session: AsyncSession,
+) -> tuple[DataResources, StorageObjects]:
+    row = (
+        await session.execute(
+            select(DataResources, StorageObjects)
+            .join(
+                StorageObjects,
+                StorageObjects.storage_object_id
+                == DataResources.storage_object_id,
+            )
+            .where(
+                DataResources.resource_id == resource_id,
+                DataResources.workspace_id
+                == context.workspace.workspace_id,
+                DataResources.status == "active",
+            )
+        )
+    ).one_or_none()
+    if row is None or not can_view(row[0], context):
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "resource not found")
+    return row
+
+
+@router.get("/{resource_id}")
+async def get_resource(
+    resource_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    resource, storage_object = await get_visible_resource(
+        resource_id,
+        context,
+        session,
+    )
+    return {
+        "request_id": context.request_id,
+        "data": resource_payload(resource, storage_object),
+        "meta": {},
+    }
+
+
+@router.post("/{resource_id}/download-url")
+async def resource_download_url(
+    resource_id: str,
+    payload: DownloadUrlRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    resource, _ = await get_visible_resource(
+        resource_id,
+        context,
+        session,
+    )
+    data = await request.app.state.storage_client.create_download_url(
+        resource.storage_object_id,
+        payload.expires_seconds,
+    )
+    return {"request_id": context.request_id, "data": data, "meta": {}}
+
+
+@router.delete("/{resource_id}")
+async def delete_resource(
+    resource_id: str,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    resource, _ = await get_visible_resource(
+        resource_id,
+        context,
+        session,
+    )
+    if (
+        resource.owner_user_id != context.user.user_id
+        and not context.is_admin
+    ):
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "resource can only be deleted by its owner or an administrator",
+        )
+    await request.app.state.storage_client.delete_object(
+        resource.storage_object_id
+    )
+    resource.status = "deleted"
+    resource.deleted_at = datetime.now(UTC).replace(tzinfo=None)
+    return {
+        "request_id": context.request_id,
+        "data": {"resource_id": resource_id, "status": "deleted"},
+        "meta": {},
+    }
diff --git a/backend/src/backend/runtime_client.py b/backend/src/backend/runtime_client.py
new file mode 100644
index 0000000..e843b30
--- /dev/null
+++ b/backend/src/backend/runtime_client.py
@@ -0,0 +1,104 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Any
+
+import httpx
+
+
+@dataclass(frozen=True)
+class RuntimeClientError(Exception):
+    status_code: int
+    detail: Any
+
+
+class RuntimeClient:
+    def __init__(
+        self,
+        client: httpx.AsyncClient,
+        service_token: str,
+    ) -> None:
+        self.client = client
+        self.headers = {"X-Service-Token": service_token}
+
+    async def _request(
+        self,
+        method: str,
+        path: str,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        try:
+            response = await self.client.request(
+                method,
+                path,
+                json=payload,
+                headers=self.headers,
+            )
+        except httpx.RequestError as exc:
+            raise RuntimeClientError(
+                503,
+                {
+                    "code": "RUNTIME_UNAVAILABLE",
+                    "message": "Runtime Manager 暂时不可用",
+                    "retryable": True,
+                    "details": {},
+                },
+            ) from exc
+        if response.is_error:
+            try:
+                detail = response.json().get("detail", response.text)
+            except ValueError:
+                detail = response.text
+            raise RuntimeClientError(response.status_code, detail)
+        return response.json()
+
+    async def acquire_file_lock(
+        self,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        return (
+            await self._request(
+                "POST",
+                "/internal/v1/file-locks/acquire",
+                payload,
+            )
+        )["data"]
+
+    async def heartbeat_file_lock(
+        self,
+        edit_session_id: str,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        return (
+            await self._request(
+                "POST",
+                f"/internal/v1/file-locks/{edit_session_id}/heartbeat",
+                payload,
+            )
+        )["data"]
+
+    async def release_file_lock(
+        self,
+        edit_session_id: str,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        return (
+            await self._request(
+                "DELETE",
+                f"/internal/v1/file-locks/{edit_session_id}",
+                payload,
+            )
+        )["data"]
+
+    async def create_jupyter_access_ticket(
+        self,
+        edit_session_id: str,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        return (
+            await self._request(
+                "POST",
+                f"/internal/v1/jupyter/access-tickets/{edit_session_id}",
+                payload,
+            )
+        )["data"]
diff --git a/backend/src/backend/schedule_client.py b/backend/src/backend/schedule_client.py
new file mode 100644
index 0000000..ba804e5
--- /dev/null
+++ b/backend/src/backend/schedule_client.py
@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+import logging
+
+import httpx
+
+
+LOGGER = logging.getLogger(__name__)
+
+
+class ScheduleExecutorClient:
+    """Best-effort HTTP notification for immediate run dispatch.
+
+    MySQL remains the source of truth. If this notification fails, the
+    executor's database polling loop will still pick up the pending Outbox row.
+    """
+
+    def __init__(self, client: httpx.AsyncClient, service_token: str) -> None:
+        self.client = client
+        self.headers = {"X-Service-Token": service_token}
+
+    async def dispatch_run(self, run_id: str) -> bool:
+        try:
+            response = await self.client.post(
+                f"/internal/v1/runs/{run_id}/dispatch",
+                headers=self.headers,
+            )
+        except httpx.RequestError:
+            LOGGER.warning(
+                "schedule executor notification failed for run %s",
+                run_id,
+                exc_info=True,
+            )
+            return False
+        if response.is_error:
+            LOGGER.warning(
+                "schedule executor rejected run %s: %s %s",
+                run_id,
+                response.status_code,
+                response.text[:500],
+            )
+            return False
+        return True
diff --git a/backend/src/backend/schedule_runs.py b/backend/src/backend/schedule_runs.py
new file mode 100644
index 0000000..d75de5d
--- /dev/null
+++ b/backend/src/backend/schedule_runs.py
@@ -0,0 +1,348 @@
+from __future__ import annotations
+
+import hashlib
+from datetime import UTC, datetime
+from typing import Any, Literal
+
+from fastapi import APIRouter, Depends, Header, HTTPException, Query, Request, status
+from pydantic import Field
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db.models import (
+    ScheduleNodeRuns,
+    ScheduleRuns,
+)
+from common.eventing import add_outbox_event, utcnow
+from common.ids import new_ulid
+from backend.dependencies import (
+    RequestContext,
+    database_session,
+    request_context,
+)
+from backend.schedule_schemas import StrictModel
+from backend.schedules import (
+    graph_rows,
+    schedule_row,
+    validate_dag,
+)
+
+
+router = APIRouter(tags=["schedule-runs"])
+RunStatus = Literal[
+    "queued",
+    "running",
+    "succeeded",
+    "failed",
+    "cancelled",
+    "timed_out",
+]
+
+
+class RunScheduleRequest(StrictModel):
+    reason: str = Field(default="manual_run", min_length=1, max_length=255)
+
+
+def _iso(value: datetime | None) -> str | None:
+    if value is None:
+        return None
+    if value.tzinfo is None:
+        value = value.replace(tzinfo=UTC)
+    return value.astimezone(UTC).isoformat()
+
+
+def _normalized_idempotency_key(
+    workspace_id: str,
+    schedule_id: str,
+    value: str,
+) -> str:
+    normalized = value.strip()
+    if len(normalized) < 8:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "Idempotency-Key must contain at least 8 characters",
+        )
+    digest = hashlib.sha256(
+        f"{workspace_id}:{schedule_id}:{normalized}".encode("utf-8")
+    ).hexdigest()
+    return f"run:v1:{digest}"
+
+
+def _arguments(value: dict[str, Any] | None) -> list[str]:
+    payload = value or {}
+    raw = payload.get("_args")
+    result = [str(item) for item in raw] if isinstance(raw, list) else []
+    for key, item in payload.items():
+        if key == "_args":
+            continue
+        option = f"--{key.replace('_', '-')}"
+        if item is True:
+            result.append(option)
+        elif item is False or item is None:
+            continue
+        elif isinstance(item, list):
+            for list_item in item:
+                result.extend((option, str(list_item)))
+        elif isinstance(item, (str, int, float)):
+            result.extend((option, str(item)))
+        else:
+            raise HTTPException(
+                status.HTTP_422_UNPROCESSABLE_ENTITY,
+                f"node argument {key!r} must be a scalar or list",
+            )
+    return result
+
+
+def run_summary(item: ScheduleRuns) -> dict[str, Any]:
+    return {
+        "run_id": item.run_id,
+        "schedule_id": item.schedule_id,
+        "workspace_id": item.workspace_id,
+        "workflow_version": item.workflow_version,
+        "trigger_type": item.trigger_type,
+        "run_status": item.run_status,
+        "state_version": item.state_version,
+        "queued_at": _iso(item.queued_at),
+        "started_at": _iso(item.started_at),
+        "finished_at": _iso(item.finished_at),
+        "duration_ms": item.duration_ms,
+        "error_code": item.error_code,
+        "error_message": item.error_message,
+        "logs_object_id": item.logs_object_id,
+        "result_object_id": item.result_object_id,
+    }
+
+
+def node_run_payload(item: ScheduleNodeRuns) -> dict[str, Any]:
+    return {
+        "node_run_id": item.node_run_id,
+        "run_id": item.run_id,
+        "node_id": item.node_id,
+        "versions_id": item.versions_id,
+        "attempt_no": item.attempt_no,
+        "node_status": item.node_status,
+        "state_version": item.state_version,
+        "started_at": _iso(item.started_at),
+        "finished_at": _iso(item.finished_at),
+        "duration_ms": item.duration_ms,
+        "exit_code": item.exit_code,
+        "message": item.message,
+        "logs_object_id": item.logs_object_id,
+        "result_object_id": item.result_object_id,
+    }
+
+
+async def run_detail(
+    item: ScheduleRuns,
+    session: AsyncSession,
+) -> dict[str, Any]:
+    node_runs = list(
+        (
+            await session.scalars(
+                select(ScheduleNodeRuns)
+                .where(ScheduleNodeRuns.run_id == item.run_id)
+                .order_by(
+                    ScheduleNodeRuns.created_at,
+                    ScheduleNodeRuns.attempt_no,
+                )
+            )
+        ).all()
+    )
+    return {
+        **run_summary(item),
+        "node_runs": [node_run_payload(node_run) for node_run in node_runs],
+    }
+
+
+async def _visible_run(
+    run_id: str,
+    context: RequestContext,
+    session: AsyncSession,
+) -> ScheduleRuns:
+    item = await session.scalar(
+        select(ScheduleRuns).where(
+            ScheduleRuns.run_id == run_id,
+            ScheduleRuns.workspace_id == context.workspace.workspace_id,
+        )
+    )
+    if item is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "schedule run not found")
+    return item
+
+
+@router.post(
+    "/api/v1/schedules/{schedule_id}/run",
+    status_code=status.HTTP_202_ACCEPTED,
+)
+async def run_schedule_now(
+    schedule_id: str,
+    request: Request,
+    payload: RunScheduleRequest | None = None,
+    idempotency_key: str = Header(alias="Idempotency-Key"),
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    reason = payload.reason if payload is not None else "manual_run"
+    key = _normalized_idempotency_key(
+        context.workspace.workspace_id,
+        schedule_id,
+        idempotency_key,
+    )
+    existing = await session.scalar(
+        select(ScheduleRuns).where(ScheduleRuns.idempotency_key == key)
+    )
+    if existing is not None:
+        if (
+            existing.workspace_id != context.workspace.workspace_id
+            or existing.schedule_id != schedule_id
+        ):
+            raise HTTPException(
+                status.HTTP_409_CONFLICT,
+                "Idempotency-Key belongs to another schedule run",
+            )
+        return {
+            "request_id": context.request_id,
+            "data": await run_detail(existing, session),
+            "meta": {"reused": True},
+        }
+
+    schedule = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    node_rows, edges = await graph_rows(schedule_id, session)
+    nodes = [row[0] for row in node_rows]
+    validation = validate_dag(nodes, edges)
+    if not validation["valid"] or not nodes:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            detail={
+                "code": "SCHEDULE_DAG_INVALID",
+                "message": "schedule must contain a valid non-empty DAG",
+                "errors": validation["errors"],
+            },
+        )
+    if len(nodes) > 100 or len(edges) > 500:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "schedule exceeds the v1 execution size limit",
+        )
+
+    snapshot = {
+        "schedule_name": schedule.schedule_name,
+        "workflow_version": schedule.workflow_version,
+        "max_concurrency": schedule.max_concurrency,
+        "failure_policy": schedule.failure_policy,
+        "nodes": [
+            {
+                "node_id": node.node_id,
+                "node_key": node.node_key,
+                "versions_id": version.versions_id,
+                "script_type": script.script_type,
+                "artifact_object_id": version.artifact_object_id,
+                "artifact_path": version.artifact_path,
+                "timeout_seconds": node.timeout_seconds,
+                "retry_count": node.retry_count,
+                "retry_interval_sec": node.retry_interval_sec,
+                "arguments": _arguments(node.arguments_json),
+            }
+            for node, version, script in node_rows
+        ],
+        "edges": [
+            {
+                "source_node_id": edge.source_node_id,
+                "target_node_id": edge.target_node_id,
+            }
+            for edge in edges
+        ],
+    }
+    now = utcnow()
+    run = ScheduleRuns(
+        run_id=new_ulid(),
+        schedule_id=schedule.schedule_id,
+        workspace_id=schedule.workspace_id,
+        workflow_version=schedule.workflow_version,
+        trigger_type="cron" if reason == "cron" else "manual",
+        idempotency_key=key,
+        run_status="queued",
+        state_version=0,
+        schedule_snapshot=snapshot,
+        queued_at=now,
+        triggered_by=context.user.user_id,
+    )
+    session.add(run)
+    schedule.last_run_at = now
+    await add_outbox_event(
+        session,
+        event_type="schedule.run.requested",
+        producer="platform-api",
+        trace_id=context.request_id,
+        aggregate_type="schedule_run",
+        aggregate_id=run.run_id,
+        idempotency_key=key,
+        payload={
+            "workspace_id": run.workspace_id,
+            "schedule_id": run.schedule_id,
+            "run_id": run.run_id,
+            "workflow_version": run.workflow_version,
+            "trigger_type": run.trigger_type,
+            "triggered_by": run.triggered_by,
+            "schedule_snapshot": snapshot,
+        },
+    )
+    await session.flush()
+    # Commit before the HTTP push so the executor can read the Outbox row.
+    # The executor also polls MySQL, so a failed push does not lose the run.
+    await session.commit()
+    await request.app.state.schedule_client.dispatch_run(run.run_id)
+    await session.refresh(run)
+    return {
+        "request_id": context.request_id,
+        "data": await run_detail(run, session),
+        "meta": {"reused": False},
+    }
+
+
+@router.get("/api/v1/schedule-runs")
+async def list_schedule_runs(
+    schedule_id: str | None = Query(default=None),
+    run_status: RunStatus | None = Query(default=None, alias="status"),
+    limit: int = Query(default=50, ge=1, le=200),
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    statement = select(ScheduleRuns).where(
+        ScheduleRuns.workspace_id == context.workspace.workspace_id,
+    )
+    if schedule_id:
+        statement = statement.where(ScheduleRuns.schedule_id == schedule_id)
+    if run_status:
+        statement = statement.where(ScheduleRuns.run_status == run_status)
+    items = list(
+        (
+            await session.scalars(
+                statement.order_by(ScheduleRuns.queued_at.desc()).limit(limit)
+            )
+        ).all()
+    )
+    return {
+        "request_id": context.request_id,
+        "data": [run_summary(item) for item in items],
+        "meta": {"count": len(items)},
+    }
+
+
+@router.get("/api/v1/schedule-runs/{run_id}")
+async def get_schedule_run(
+    run_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    item = await _visible_run(run_id, context, session)
+    return {
+        "request_id": context.request_id,
+        "data": await run_detail(item, session),
+        "meta": {},
+    }
diff --git a/backend/src/backend/schedule_schemas.py b/backend/src/backend/schedule_schemas.py
new file mode 100644
index 0000000..8d658bb
--- /dev/null
+++ b/backend/src/backend/schedule_schemas.py
@@ -0,0 +1,214 @@
+from __future__ import annotations
+
+from datetime import datetime
+from typing import Any, Literal
+
+from pydantic import Field, field_validator, model_validator
+
+from backend.schemas import StrictModel
+
+
+TriggerType = Literal["manual", "cron", "api"]
+FailurePolicy = Literal["stop", "continue"]
+
+
+def _required_text(value: str) -> str:
+    normalized = value.strip()
+    if not normalized:
+        raise ValueError("value must not be blank")
+    return normalized
+
+
+class CreateScheduleRequest(StrictModel):
+    schedule_name: str = Field(min_length=1, max_length=255)
+    description: str | None = Field(default=None, max_length=1000)
+    trigger_type: TriggerType = "cron"
+    cron_expression: str | None = Field(default=None, max_length=128)
+    timezone: str = Field(default="Asia/Shanghai", min_length=1, max_length=64)
+    enabled: bool = False
+    max_concurrency: int = Field(default=1, ge=1, le=64)
+    failure_policy: FailurePolicy = "stop"
+
+    @field_validator("schedule_name", "timezone")
+    @classmethod
+    def validate_required_text(cls, value: str) -> str:
+        return _required_text(value)
+
+    @field_validator("description", "cron_expression")
+    @classmethod
+    def normalize_optional_text(cls, value: str | None) -> str | None:
+        if value is None:
+            return None
+        normalized = value.strip()
+        return normalized or None
+
+    @model_validator(mode="after")
+    def validate_trigger(self) -> "CreateScheduleRequest":
+        if self.trigger_type == "cron" and not self.cron_expression:
+            raise ValueError("cron_expression is required for cron schedules")
+        if self.trigger_type != "cron" and self.cron_expression:
+            raise ValueError(
+                "cron_expression is only allowed for cron schedules"
+            )
+        return self
+
+
+class UpdateScheduleRequest(StrictModel):
+    workflow_version: int = Field(ge=1)
+    schedule_name: str | None = Field(default=None, min_length=1, max_length=255)
+    description: str | None = Field(default=None, max_length=1000)
+    trigger_type: TriggerType | None = None
+    cron_expression: str | None = Field(default=None, max_length=128)
+    timezone: str | None = Field(default=None, min_length=1, max_length=64)
+    enabled: bool | None = None
+    max_concurrency: int | None = Field(default=None, ge=1, le=64)
+    failure_policy: FailurePolicy | None = None
+
+    @field_validator("schedule_name", "timezone")
+    @classmethod
+    def validate_optional_required_text(
+        cls,
+        value: str | None,
+    ) -> str | None:
+        return _required_text(value) if value is not None else None
+
+    @field_validator("description", "cron_expression")
+    @classmethod
+    def normalize_optional_text(cls, value: str | None) -> str | None:
+        if value is None:
+            return None
+        normalized = value.strip()
+        return normalized or None
+
+    @model_validator(mode="after")
+    def require_change(self) -> "UpdateScheduleRequest":
+        if self.model_fields_set == {"workflow_version"}:
+            raise ValueError("at least one schedule field must be updated")
+        for field in {
+            "schedule_name",
+            "trigger_type",
+            "timezone",
+            "enabled",
+            "max_concurrency",
+            "failure_policy",
+        }:
+            if field in self.model_fields_set and getattr(self, field) is None:
+                raise ValueError(f"{field} cannot be null")
+        return self
+
+
+class WorkflowVersionRequest(StrictModel):
+    workflow_version: int = Field(ge=1)
+
+
+class CreateScheduleNodeRequest(StrictModel):
+    workflow_version: int = Field(ge=1)
+    node_key: str = Field(
+        min_length=1,
+        max_length=64,
+        pattern=r"^[A-Za-z][A-Za-z0-9_-]*$",
+    )
+    node_name: str = Field(min_length=1, max_length=255)
+    versions_id: str = Field(min_length=26, max_length=26)
+    timeout_seconds: int = Field(default=600, ge=1, le=86_400)
+    retry_count: int = Field(default=0, ge=0, le=10)
+    retry_interval_sec: int = Field(default=5, ge=0, le=3600)
+    position_x: float = Field(default=0, ge=-100_000, le=100_000)
+    position_y: float = Field(default=0, ge=-100_000, le=100_000)
+    arguments_json: dict[str, Any] = Field(default_factory=dict, max_length=100)
+    env_refs_json: dict[str, str] = Field(default_factory=dict, max_length=100)
+
+    @field_validator("node_key", "node_name")
+    @classmethod
+    def validate_required_text(cls, value: str) -> str:
+        return _required_text(value)
+
+
+class UpdateScheduleNodeRequest(StrictModel):
+    workflow_version: int = Field(ge=1)
+    node_name: str | None = Field(default=None, min_length=1, max_length=255)
+    versions_id: str | None = Field(default=None, min_length=26, max_length=26)
+    timeout_seconds: int | None = Field(default=None, ge=1, le=86_400)
+    retry_count: int | None = Field(default=None, ge=0, le=10)
+    retry_interval_sec: int | None = Field(default=None, ge=0, le=3600)
+    position_x: float | None = Field(
+        default=None,
+        ge=-100_000,
+        le=100_000,
+    )
+    position_y: float | None = Field(
+        default=None,
+        ge=-100_000,
+        le=100_000,
+    )
+    arguments_json: dict[str, Any] | None = Field(
+        default=None,
+        max_length=100,
+    )
+    env_refs_json: dict[str, str] | None = Field(
+        default=None,
+        max_length=100,
+    )
+
+    @field_validator("node_name")
+    @classmethod
+    def validate_optional_required_text(
+        cls,
+        value: str | None,
+    ) -> str | None:
+        return _required_text(value) if value is not None else None
+
+    @model_validator(mode="after")
+    def require_change(self) -> "UpdateScheduleNodeRequest":
+        if self.model_fields_set == {"workflow_version"}:
+            raise ValueError("at least one node field must be updated")
+        for field in self.model_fields_set - {"workflow_version"}:
+            if getattr(self, field) is None:
+                raise ValueError(f"{field} cannot be null")
+        return self
+
+
+class CreateScheduleEdgeRequest(StrictModel):
+    workflow_version: int = Field(ge=1)
+    source_node_id: str = Field(min_length=26, max_length=26)
+    target_node_id: str = Field(min_length=26, max_length=26)
+    condition_expr: str | None = Field(default=None, max_length=1000)
+
+    @field_validator("condition_expr")
+    @classmethod
+    def normalize_condition(cls, value: str | None) -> str | None:
+        if value is None:
+            return None
+        normalized = value.strip()
+        return normalized or None
+
+    @model_validator(mode="after")
+    def reject_self_edge(self) -> "CreateScheduleEdgeRequest":
+        if self.source_node_id == self.target_node_id:
+            raise ValueError("an edge cannot connect a node to itself")
+        return self
+
+
+class UpdateScheduleEdgeRequest(StrictModel):
+    workflow_version: int = Field(ge=1)
+    condition_expr: str | None = Field(default=None, max_length=1000)
+
+    @field_validator("condition_expr")
+    @classmethod
+    def normalize_condition(cls, value: str | None) -> str | None:
+        if value is None:
+            return None
+        normalized = value.strip()
+        return normalized or None
+
+
+class CronPreviewRequest(StrictModel):
+    cron_expression: str = Field(min_length=1, max_length=128)
+    timezone: str = Field(default="Asia/Shanghai", min_length=1, max_length=64)
+    count: int = Field(default=5, ge=1, le=20)
+    base_time: datetime | None = None
+
+    @field_validator("cron_expression", "timezone")
+    @classmethod
+    def validate_required_text(cls, value: str) -> str:
+        return _required_text(value)
diff --git a/backend/src/backend/schedules.py b/backend/src/backend/schedules.py
new file mode 100644
index 0000000..59f8925
--- /dev/null
+++ b/backend/src/backend/schedules.py
@@ -0,0 +1,1076 @@
+from __future__ import annotations
+
+import heapq
+from datetime import UTC, datetime
+from decimal import Decimal
+from typing import Any
+from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
+
+from croniter import CroniterBadCronError, croniter
+from fastapi import APIRouter, Depends, HTTPException, Query, status
+from sqlalchemy import delete, func, or_, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db.models import (
+    ScheduleEdges,
+    ScheduleNodeRuns,
+    ScheduleNodes,
+    Schedules,
+    Scripts,
+    Versions,
+)
+from common.ids import new_ulid
+from backend.dependencies import (
+    RequestContext,
+    database_session,
+    request_context,
+)
+from backend.schedule_schemas import (
+    CreateScheduleEdgeRequest,
+    CreateScheduleNodeRequest,
+    CreateScheduleRequest,
+    CronPreviewRequest,
+    UpdateScheduleEdgeRequest,
+    UpdateScheduleNodeRequest,
+    UpdateScheduleRequest,
+    WorkflowVersionRequest,
+)
+
+
+router = APIRouter(tags=["schedules"])
+
+
+def _iso(value: datetime | None) -> str | None:
+    if value is None:
+        return None
+    if value.tzinfo is None:
+        value = value.replace(tzinfo=UTC)
+    return value.astimezone(UTC).isoformat()
+
+
+def _mysql_utc(value: datetime) -> datetime:
+    if value.tzinfo is None:
+        value = value.replace(tzinfo=UTC)
+    return value.astimezone(UTC).replace(tzinfo=None)
+
+
+def _timezone(value: str) -> ZoneInfo:
+    try:
+        return ZoneInfo(value)
+    except ZoneInfoNotFoundError as exc:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            f"unknown timezone: {value}",
+        ) from exc
+
+
+def cron_preview(
+    expression: str,
+    timezone_name: str,
+    *,
+    count: int,
+    base_time: datetime | None = None,
+) -> dict[str, Any]:
+    if len(expression.split()) != 5:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "cron_expression must contain exactly five fields: "
+            "minute hour day month weekday",
+        )
+    timezone = _timezone(timezone_name)
+    if base_time is None:
+        local_base = datetime.now(timezone)
+    elif base_time.tzinfo is None:
+        local_base = base_time.replace(tzinfo=timezone)
+    else:
+        local_base = base_time.astimezone(timezone)
+    try:
+        if not croniter.is_valid(expression, strict=True):
+            raise CroniterBadCronError(expression)
+        iterator = croniter(expression, local_base)
+        occurrences = [
+            iterator.get_next(datetime)
+            for _ in range(count)
+        ]
+    except (CroniterBadCronError, ValueError, OverflowError) as exc:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "invalid cron_expression",
+        ) from exc
+    return {
+        "cron_expression": expression,
+        "timezone": timezone_name,
+        "base_time": local_base.isoformat(),
+        "occurrences": [
+            {
+                "local_time": occurrence.isoformat(),
+                "utc_time": occurrence.astimezone(UTC).isoformat(),
+            }
+            for occurrence in occurrences
+        ],
+    }
+
+
+def schedule_payload(
+    item: Schedules,
+    *,
+    node_count: int = 0,
+    edge_count: int = 0,
+) -> dict[str, Any]:
+    return {
+        "schedule_id": item.schedule_id,
+        "workspace_id": item.workspace_id,
+        "schedule_name": item.schedule_name,
+        "description": item.description,
+        "trigger_type": item.trigger_type,
+        "cron_expression": item.cron_expression,
+        "timezone": item.timezone,
+        "enabled": bool(item.enabled),
+        "workflow_version": item.workflow_version,
+        "max_concurrency": item.max_concurrency,
+        "failure_policy": item.failure_policy,
+        "last_run_at": _iso(item.last_run_at),
+        "next_run_at": _iso(item.next_run_at),
+        "created_by": item.created_by,
+        "updated_by": item.updated_by,
+        "created_at": _iso(item.created_at),
+        "updated_at": _iso(item.updated_at),
+        "node_count": node_count,
+        "edge_count": edge_count,
+    }
+
+
+def node_payload(
+    item: ScheduleNodes,
+    version: Versions,
+    script: Scripts,
+) -> dict[str, Any]:
+    return {
+        "node_id": item.node_id,
+        "schedule_id": item.schedule_id,
+        "node_key": item.node_key,
+        "node_name": item.node_name,
+        "versions_id": item.versions_id,
+        "timeout_seconds": item.timeout_seconds,
+        "retry_count": item.retry_count,
+        "retry_interval_sec": item.retry_interval_sec,
+        "position_x": float(item.position_x),
+        "position_y": float(item.position_y),
+        "arguments_json": item.arguments_json or {},
+        "env_refs_json": item.env_refs_json or {},
+        "created_at": _iso(item.created_at),
+        "updated_at": _iso(item.updated_at),
+        "version": {
+            "versions_id": version.versions_id,
+            "version_label": version.version_label,
+            "script_id": version.script_id,
+            "script_name": script.script_name,
+            "script_type": script.script_type,
+            "content_hash": version.content_hash,
+            "created_at": _iso(version.created_at),
+        },
+    }
+
+
+def edge_payload(item: ScheduleEdges) -> dict[str, Any]:
+    return {
+        "edge_id": item.edge_id,
+        "schedule_id": item.schedule_id,
+        "source_node_id": item.source_node_id,
+        "target_node_id": item.target_node_id,
+        "condition_expr": item.condition_expr,
+        "created_at": _iso(item.created_at),
+    }
+
+
+def validate_dag(
+    nodes: list[ScheduleNodes],
+    edges: list[ScheduleEdges],
+) -> dict[str, Any]:
+    node_by_id = {item.node_id: item for item in nodes}
+    indegree = {item.node_id: 0 for item in nodes}
+    outgoing: dict[str, set[str]] = {
+        item.node_id: set()
+        for item in nodes
+    }
+    errors: list[dict[str, Any]] = []
+    seen_edges: set[tuple[str, str]] = set()
+
+    if not nodes:
+        errors.append(
+            {
+                "code": "DAG_EMPTY",
+                "message": "schedule must contain at least one node",
+            }
+        )
+
+    for edge in edges:
+        if (
+            edge.source_node_id not in node_by_id
+            or edge.target_node_id not in node_by_id
+        ):
+            errors.append(
+                {
+                    "code": "DAG_EDGE_NODE_MISSING",
+                    "message": "edge references a node outside the schedule",
+                    "edge_id": edge.edge_id,
+                }
+            )
+            continue
+        pair = (edge.source_node_id, edge.target_node_id)
+        if edge.source_node_id == edge.target_node_id:
+            errors.append(
+                {
+                    "code": "DAG_SELF_EDGE",
+                    "message": "a node cannot depend on itself",
+                    "edge_id": edge.edge_id,
+                }
+            )
+            continue
+        if pair in seen_edges:
+            errors.append(
+                {
+                    "code": "DAG_DUPLICATE_EDGE",
+                    "message": "duplicate directed edge",
+                    "edge_id": edge.edge_id,
+                }
+            )
+            continue
+        seen_edges.add(pair)
+        outgoing[edge.source_node_id].add(edge.target_node_id)
+        indegree[edge.target_node_id] += 1
+
+    root_ids = sorted(
+        (node_id for node_id, degree in indegree.items() if degree == 0),
+        key=lambda node_id: node_by_id[node_id].node_key,
+    )
+    leaf_ids = sorted(
+        (node_id for node_id, targets in outgoing.items() if not targets),
+        key=lambda node_id: node_by_id[node_id].node_key,
+    )
+    queue = [
+        (node_by_id[node_id].node_key, node_id)
+        for node_id in root_ids
+    ]
+    heapq.heapify(queue)
+    remaining_indegree = dict(indegree)
+    ordered_ids: list[str] = []
+    while queue:
+        _, node_id = heapq.heappop(queue)
+        ordered_ids.append(node_id)
+        for target_id in sorted(
+            outgoing[node_id],
+            key=lambda value: node_by_id[value].node_key,
+        ):
+            remaining_indegree[target_id] -= 1
+            if remaining_indegree[target_id] == 0:
+                heapq.heappush(
+                    queue,
+                    (node_by_id[target_id].node_key, target_id),
+                )
+
+    if len(ordered_ids) != len(nodes):
+        cycle_node_ids = sorted(
+            (
+                node_id
+                for node_id, degree in remaining_indegree.items()
+                if degree > 0
+            ),
+            key=lambda node_id: node_by_id[node_id].node_key,
+        )
+        errors.append(
+            {
+                "code": "DAG_CYCLE",
+                "message": "schedule graph contains a directed cycle",
+                "node_ids": cycle_node_ids,
+            }
+        )
+
+    return {
+        "valid": not errors,
+        "node_count": len(nodes),
+        "edge_count": len(edges),
+        "root_node_ids": root_ids,
+        "leaf_node_ids": leaf_ids,
+        "topological_order": ordered_ids,
+        "errors": errors,
+    }
+
+
+async def schedule_row(
+    schedule_id: str,
+    context: RequestContext,
+    session: AsyncSession,
+    *,
+    for_update: bool = False,
+) -> Schedules:
+    statement = select(Schedules).where(
+        Schedules.schedule_id == schedule_id,
+        Schedules.workspace_id == context.workspace.workspace_id,
+        Schedules.deleted_at.is_(None),
+    )
+    if for_update:
+        statement = statement.with_for_update()
+    item = await session.scalar(statement)
+    if item is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "schedule not found")
+    return item
+
+
+def require_workflow_version(item: Schedules, expected: int) -> None:
+    if item.workflow_version != expected:
+        raise HTTPException(
+            status.HTTP_412_PRECONDITION_FAILED,
+            detail={
+                "code": "WORKFLOW_VERSION_CONFLICT",
+                "message": "schedule was modified by another request",
+                "expected": expected,
+                "current": item.workflow_version,
+            },
+        )
+
+
+async def graph_rows(
+    schedule_id: str,
+    session: AsyncSession,
+) -> tuple[
+    list[tuple[ScheduleNodes, Versions, Scripts]],
+    list[ScheduleEdges],
+]:
+    node_rows = (
+        await session.execute(
+            select(ScheduleNodes, Versions, Scripts)
+            .join(
+                Versions,
+                Versions.versions_id == ScheduleNodes.versions_id,
+            )
+            .join(Scripts, Scripts.script_id == Versions.script_id)
+            .where(ScheduleNodes.schedule_id == schedule_id)
+            .order_by(ScheduleNodes.created_at, ScheduleNodes.node_key)
+        )
+    ).all()
+    edges = list(
+        (
+            await session.scalars(
+                select(ScheduleEdges)
+                .where(ScheduleEdges.schedule_id == schedule_id)
+                .order_by(ScheduleEdges.created_at, ScheduleEdges.edge_id)
+            )
+        ).all()
+    )
+    return list(node_rows), edges
+
+
+async def detail_payload(
+    item: Schedules,
+    session: AsyncSession,
+) -> dict[str, Any]:
+    node_rows, edges = await graph_rows(item.schedule_id, session)
+    nodes = [row[0] for row in node_rows]
+    return {
+        **schedule_payload(
+            item,
+            node_count=len(nodes),
+            edge_count=len(edges),
+        ),
+        "nodes": [
+            node_payload(node, version, script)
+            for node, version, script in node_rows
+        ],
+        "edges": [edge_payload(edge) for edge in edges],
+        "dag_validation": validate_dag(nodes, edges),
+    }
+
+
+async def accessible_version(
+    versions_id: str,
+    context: RequestContext,
+    session: AsyncSession,
+) -> tuple[Versions, Scripts]:
+    row = (
+        await session.execute(
+            select(Versions, Scripts)
+            .join(Scripts, Scripts.script_id == Versions.script_id)
+            .where(
+                Versions.versions_id == versions_id,
+                Versions.workspace_id == context.workspace.workspace_id,
+            )
+        )
+    ).one_or_none()
+    if row is None:
+        raise HTTPException(
+            status.HTTP_404_NOT_FOUND,
+            "stable version not found",
+        )
+    version, script = row
+    if not (
+        context.is_admin
+        or version.created_by == context.user.user_id
+        or version.visibility in {"workspace", "public"}
+    ):
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "stable version is not visible to this user",
+        )
+    return version, script
+
+
+def _apply_next_run(item: Schedules) -> None:
+    _timezone(item.timezone)
+    if item.trigger_type != "cron":
+        if item.cron_expression:
+            raise HTTPException(
+                status.HTTP_422_UNPROCESSABLE_ENTITY,
+                "cron_expression is only allowed for cron schedules",
+            )
+        item.cron_expression = None
+        item.next_run_at = None
+        return
+    if not item.cron_expression:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "cron_expression is required for cron schedules",
+        )
+    preview = cron_preview(
+        item.cron_expression,
+        item.timezone,
+        count=1,
+    )
+    item.next_run_at = (
+        _mysql_utc(
+            datetime.fromisoformat(preview["occurrences"][0]["utc_time"])
+        )
+        if item.enabled
+        else None
+    )
+
+
+async def _require_valid_when_enabled(
+    item: Schedules,
+    session: AsyncSession,
+) -> None:
+    if not item.enabled:
+        return
+    node_rows, edges = await graph_rows(item.schedule_id, session)
+    validation = validate_dag([row[0] for row in node_rows], edges)
+    if not validation["valid"]:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            detail={
+                "code": "DAG_INVALID",
+                "message": "an enabled schedule must contain a valid DAG",
+                "validation": validation,
+            },
+        )
+
+
+@router.post("/api/v1/cron/preview")
+async def preview_cron(
+    payload: CronPreviewRequest,
+    context: RequestContext = Depends(request_context),
+) -> dict[str, Any]:
+    return {
+        "request_id": context.request_id,
+        "data": cron_preview(
+            payload.cron_expression,
+            payload.timezone,
+            count=payload.count,
+            base_time=payload.base_time,
+        ),
+        "meta": {},
+    }
+
+
+@router.get("/api/v1/schedule-artifacts")
+async def list_schedule_artifacts(
+    limit: int = Query(default=100, ge=1, le=500),
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    rows = (
+        await session.execute(
+            select(Versions, Scripts)
+            .join(Scripts, Scripts.script_id == Versions.script_id)
+            .where(
+                Versions.workspace_id == context.workspace.workspace_id,
+                Versions.schedule_hidden_at.is_(None),
+            )
+            .order_by(Versions.created_at.desc())
+            .limit(limit)
+        )
+    ).all()
+    visible = [
+        (version, script)
+        for version, script in rows
+        if (
+            context.is_admin
+            or version.created_by == context.user.user_id
+            or version.visibility in {"workspace", "public"}
+        )
+    ]
+    data = [
+        {
+            "versions_id": version.versions_id,
+            "version_label": version.version_label,
+            "script_id": script.script_id,
+            "script_name": script.script_name,
+            "script_type": script.script_type,
+            "content_hash": version.content_hash,
+            "file_size_bytes": version.file_size_bytes,
+            "visibility": version.visibility,
+            "created_by": version.created_by,
+            "created_at": _iso(version.created_at),
+        }
+        for version, script in visible
+    ]
+    return {
+        "request_id": context.request_id,
+        "data": data,
+        "meta": {"count": len(data)},
+    }
+
+
+@router.get("/api/v1/schedules")
+async def list_schedules(
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    items = list(
+        (
+            await session.scalars(
+                select(Schedules)
+                .where(
+                    Schedules.workspace_id == context.workspace.workspace_id,
+                    Schedules.deleted_at.is_(None),
+                )
+                .order_by(Schedules.updated_at.desc())
+            )
+        ).all()
+    )
+    ids = [item.schedule_id for item in items]
+    node_counts: dict[str, int] = {}
+    edge_counts: dict[str, int] = {}
+    if ids:
+        node_counts = {
+            schedule_id: int(count)
+            for schedule_id, count in (
+                await session.execute(
+                    select(
+                        ScheduleNodes.schedule_id,
+                        func.count(ScheduleNodes.node_id),
+                    )
+                    .where(ScheduleNodes.schedule_id.in_(ids))
+                    .group_by(ScheduleNodes.schedule_id)
+                )
+            ).all()
+        }
+        edge_counts = {
+            schedule_id: int(count)
+            for schedule_id, count in (
+                await session.execute(
+                    select(
+                        ScheduleEdges.schedule_id,
+                        func.count(ScheduleEdges.edge_id),
+                    )
+                    .where(ScheduleEdges.schedule_id.in_(ids))
+                    .group_by(ScheduleEdges.schedule_id)
+                )
+            ).all()
+        }
+    return {
+        "request_id": context.request_id,
+        "data": [
+            schedule_payload(
+                item,
+                node_count=node_counts.get(item.schedule_id, 0),
+                edge_count=edge_counts.get(item.schedule_id, 0),
+            )
+            for item in items
+        ],
+        "meta": {"count": len(items)},
+    }
+
+
+@router.post(
+    "/api/v1/schedules",
+    status_code=status.HTTP_201_CREATED,
+)
+async def create_schedule(
+    payload: CreateScheduleRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    duplicate = await session.scalar(
+        select(Schedules).where(
+            Schedules.workspace_id == context.workspace.workspace_id,
+            Schedules.schedule_name == payload.schedule_name,
+            Schedules.deleted_at.is_(None),
+        )
+    )
+    if duplicate is not None:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "an active schedule with the same name already exists",
+        )
+    if payload.enabled:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "a new empty schedule cannot be enabled",
+        )
+    item = Schedules(
+        schedule_id=new_ulid(),
+        workspace_id=context.workspace.workspace_id,
+        schedule_name=payload.schedule_name,
+        description=payload.description,
+        trigger_type=payload.trigger_type,
+        cron_expression=payload.cron_expression,
+        timezone=payload.timezone,
+        enabled=0,
+        workflow_version=1,
+        max_concurrency=payload.max_concurrency,
+        failure_policy=payload.failure_policy,
+        created_by=context.user.user_id,
+        updated_by=context.user.user_id,
+    )
+    _apply_next_run(item)
+    session.add(item)
+    await session.flush()
+    await session.refresh(item)
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(item, session),
+        "meta": {},
+    }
+
+
+@router.get("/api/v1/schedules/{schedule_id}")
+async def get_schedule(
+    schedule_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    item = await schedule_row(schedule_id, context, session)
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(item, session),
+        "meta": {},
+    }
+
+
+@router.put("/api/v1/schedules/{schedule_id}")
+@router.patch("/api/v1/schedules/{schedule_id}")
+async def update_schedule(
+    schedule_id: str,
+    payload: UpdateScheduleRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    item = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    require_workflow_version(item, payload.workflow_version)
+    mutable_fields = {
+        "schedule_name",
+        "description",
+        "trigger_type",
+        "cron_expression",
+        "timezone",
+        "enabled",
+        "max_concurrency",
+        "failure_policy",
+    }
+    if (
+        "schedule_name" in payload.model_fields_set
+        and payload.schedule_name != item.schedule_name
+    ):
+        duplicate = await session.scalar(
+            select(Schedules).where(
+                Schedules.workspace_id == context.workspace.workspace_id,
+                Schedules.schedule_name == payload.schedule_name,
+                Schedules.schedule_id != schedule_id,
+                Schedules.deleted_at.is_(None),
+            )
+        )
+        if duplicate is not None:
+            raise HTTPException(
+                status.HTTP_409_CONFLICT,
+                "an active schedule with the same name already exists",
+            )
+    for field in mutable_fields & payload.model_fields_set:
+        value = getattr(payload, field)
+        setattr(item, field, int(value) if field == "enabled" else value)
+    if (
+        "trigger_type" in payload.model_fields_set
+        and item.trigger_type != "cron"
+        and "cron_expression" not in payload.model_fields_set
+    ):
+        item.cron_expression = None
+    _apply_next_run(item)
+    await _require_valid_when_enabled(item, session)
+    item.updated_by = context.user.user_id
+    item.workflow_version += 1
+    await session.flush()
+    await session.refresh(item)
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(item, session),
+        "meta": {},
+    }
+
+
+@router.delete("/api/v1/schedules/{schedule_id}")
+async def delete_schedule(
+    schedule_id: str,
+    payload: WorkflowVersionRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    item = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    require_workflow_version(item, payload.workflow_version)
+    item.enabled = 0
+    item.next_run_at = None
+    item.deleted_at = _mysql_utc(datetime.now(UTC))
+    item.updated_by = context.user.user_id
+    item.workflow_version += 1
+    await session.flush()
+    return {
+        "request_id": context.request_id,
+        "data": {
+            "schedule_id": item.schedule_id,
+            "deleted": True,
+            "workflow_version": item.workflow_version,
+        },
+        "meta": {},
+    }
+
+
+@router.post(
+    "/api/v1/schedules/{schedule_id}/nodes",
+    status_code=status.HTTP_201_CREATED,
+)
+async def create_schedule_node(
+    schedule_id: str,
+    payload: CreateScheduleNodeRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    schedule = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    require_workflow_version(schedule, payload.workflow_version)
+    duplicate = await session.scalar(
+        select(ScheduleNodes).where(
+            ScheduleNodes.schedule_id == schedule_id,
+            ScheduleNodes.node_key == payload.node_key,
+        )
+    )
+    if duplicate is not None:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "node_key already exists in this schedule",
+        )
+    await accessible_version(payload.versions_id, context, session)
+    node = ScheduleNodes(
+        node_id=new_ulid(),
+        schedule_id=schedule_id,
+        node_key=payload.node_key,
+        node_name=payload.node_name,
+        versions_id=payload.versions_id,
+        timeout_seconds=payload.timeout_seconds,
+        retry_count=payload.retry_count,
+        retry_interval_sec=payload.retry_interval_sec,
+        position_x=Decimal(str(payload.position_x)),
+        position_y=Decimal(str(payload.position_y)),
+        arguments_json=payload.arguments_json,
+        env_refs_json=payload.env_refs_json,
+    )
+    session.add(node)
+    schedule.updated_by = context.user.user_id
+    schedule.workflow_version += 1
+    await session.flush()
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(schedule, session),
+        "meta": {"created_node_id": node.node_id},
+    }
+
+
+@router.put("/api/v1/schedules/{schedule_id}/nodes/{node_id}")
+async def update_schedule_node(
+    schedule_id: str,
+    node_id: str,
+    payload: UpdateScheduleNodeRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    schedule = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    require_workflow_version(schedule, payload.workflow_version)
+    node = await session.scalar(
+        select(ScheduleNodes).where(
+            ScheduleNodes.node_id == node_id,
+            ScheduleNodes.schedule_id == schedule_id,
+        )
+    )
+    if node is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "schedule node not found")
+    if (
+        "versions_id" in payload.model_fields_set
+        and payload.versions_id is not None
+    ):
+        await accessible_version(payload.versions_id, context, session)
+    mutable_fields = {
+        "node_name",
+        "versions_id",
+        "timeout_seconds",
+        "retry_count",
+        "retry_interval_sec",
+        "position_x",
+        "position_y",
+        "arguments_json",
+        "env_refs_json",
+    }
+    for field in mutable_fields & payload.model_fields_set:
+        value = getattr(payload, field)
+        if field in {"position_x", "position_y"} and value is not None:
+            value = Decimal(str(value))
+        setattr(node, field, value)
+    schedule.updated_by = context.user.user_id
+    schedule.workflow_version += 1
+    await session.flush()
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(schedule, session),
+        "meta": {"updated_node_id": node.node_id},
+    }
+
+
+@router.delete("/api/v1/schedules/{schedule_id}/nodes/{node_id}")
+async def delete_schedule_node(
+    schedule_id: str,
+    node_id: str,
+    payload: WorkflowVersionRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    schedule = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    require_workflow_version(schedule, payload.workflow_version)
+    node = await session.scalar(
+        select(ScheduleNodes).where(
+            ScheduleNodes.node_id == node_id,
+            ScheduleNodes.schedule_id == schedule_id,
+        )
+    )
+    if node is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "schedule node not found")
+    has_runs = await session.scalar(
+        select(func.count())
+        .select_from(ScheduleNodeRuns)
+        .where(ScheduleNodeRuns.node_id == node_id)
+    )
+    if int(has_runs or 0):
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "a node with execution history cannot be deleted",
+        )
+    await session.execute(
+        delete(ScheduleEdges).where(
+            ScheduleEdges.schedule_id == schedule_id,
+            or_(
+                ScheduleEdges.source_node_id == node_id,
+                ScheduleEdges.target_node_id == node_id,
+            ),
+        )
+    )
+    await session.delete(node)
+    schedule.updated_by = context.user.user_id
+    schedule.workflow_version += 1
+    await session.flush()
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(schedule, session),
+        "meta": {"deleted_node_id": node_id},
+    }
+
+
+@router.post(
+    "/api/v1/schedules/{schedule_id}/edges",
+    status_code=status.HTTP_201_CREATED,
+)
+async def create_schedule_edge(
+    schedule_id: str,
+    payload: CreateScheduleEdgeRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    schedule = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    require_workflow_version(schedule, payload.workflow_version)
+    node_ids = set(
+        (
+            await session.scalars(
+                select(ScheduleNodes.node_id).where(
+                    ScheduleNodes.schedule_id == schedule_id,
+                    ScheduleNodes.node_id.in_(
+                        [payload.source_node_id, payload.target_node_id]
+                    ),
+                )
+            )
+        ).all()
+    )
+    if node_ids != {payload.source_node_id, payload.target_node_id}:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "both edge nodes must belong to the schedule",
+        )
+    duplicate = await session.scalar(
+        select(ScheduleEdges).where(
+            ScheduleEdges.schedule_id == schedule_id,
+            ScheduleEdges.source_node_id == payload.source_node_id,
+            ScheduleEdges.target_node_id == payload.target_node_id,
+        )
+    )
+    if duplicate is not None:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "directed edge already exists",
+        )
+    edge = ScheduleEdges(
+        edge_id=new_ulid(),
+        schedule_id=schedule_id,
+        source_node_id=payload.source_node_id,
+        target_node_id=payload.target_node_id,
+        condition_expr=payload.condition_expr,
+    )
+    session.add(edge)
+    await session.flush()
+    node_rows, edges = await graph_rows(schedule_id, session)
+    validation = validate_dag([row[0] for row in node_rows], edges)
+    if not validation["valid"]:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            detail={
+                "code": "DAG_INVALID",
+                "message": "edge would make the schedule graph invalid",
+                "validation": validation,
+            },
+        )
+    schedule.updated_by = context.user.user_id
+    schedule.workflow_version += 1
+    await session.flush()
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(schedule, session),
+        "meta": {"created_edge_id": edge.edge_id},
+    }
+
+
+@router.put("/api/v1/schedules/{schedule_id}/edges/{edge_id}")
+async def update_schedule_edge(
+    schedule_id: str,
+    edge_id: str,
+    payload: UpdateScheduleEdgeRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    schedule = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    require_workflow_version(schedule, payload.workflow_version)
+    edge = await session.scalar(
+        select(ScheduleEdges).where(
+            ScheduleEdges.edge_id == edge_id,
+            ScheduleEdges.schedule_id == schedule_id,
+        )
+    )
+    if edge is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "schedule edge not found")
+    edge.condition_expr = payload.condition_expr
+    schedule.updated_by = context.user.user_id
+    schedule.workflow_version += 1
+    await session.flush()
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(schedule, session),
+        "meta": {"updated_edge_id": edge.edge_id},
+    }
+
+
+@router.delete("/api/v1/schedules/{schedule_id}/edges/{edge_id}")
+async def delete_schedule_edge(
+    schedule_id: str,
+    edge_id: str,
+    payload: WorkflowVersionRequest,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    schedule = await schedule_row(
+        schedule_id,
+        context,
+        session,
+        for_update=True,
+    )
+    require_workflow_version(schedule, payload.workflow_version)
+    edge = await session.scalar(
+        select(ScheduleEdges).where(
+            ScheduleEdges.edge_id == edge_id,
+            ScheduleEdges.schedule_id == schedule_id,
+        )
+    )
+    if edge is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "schedule edge not found")
+    await session.delete(edge)
+    schedule.updated_by = context.user.user_id
+    schedule.workflow_version += 1
+    await session.flush()
+    return {
+        "request_id": context.request_id,
+        "data": await detail_payload(schedule, session),
+        "meta": {"deleted_edge_id": edge_id},
+    }
+
+
+@router.post("/api/v1/schedules/{schedule_id}/validate")
+async def validate_schedule(
+    schedule_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    item = await schedule_row(schedule_id, context, session)
+    node_rows, edges = await graph_rows(schedule_id, session)
+    return {
+        "request_id": context.request_id,
+        "data": {
+            "schedule_id": item.schedule_id,
+            "workflow_version": item.workflow_version,
+            **validate_dag([row[0] for row in node_rows], edges),
+        },
+        "meta": {},
+    }
diff --git a/backend/src/backend/schemas.py b/backend/src/backend/schemas.py
new file mode 100644
index 0000000..33c9c01
--- /dev/null
+++ b/backend/src/backend/schemas.py
@@ -0,0 +1,72 @@
+from __future__ import annotations
+
+from typing import Literal
+
+from pydantic import BaseModel, ConfigDict, Field, field_validator
+
+
+class StrictModel(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+
+class CreateResourceUploadRequest(StrictModel):
+    file_name: str = Field(min_length=1, max_length=255)
+    content_type: str = Field(min_length=1, max_length=255)
+    expected_size_bytes: int = Field(ge=0, le=100 * 1024 * 1024)
+    expected_hash: str | None = Field(default=None, min_length=64, max_length=64)
+
+    @field_validator("expected_hash")
+    @classmethod
+    def validate_hash(cls, value: str | None) -> str | None:
+        if value is None:
+            return None
+        normalized = value.lower()
+        if any(character not in "0123456789abcdef" for character in normalized):
+            raise ValueError("expected_hash must be SHA-256 hex")
+        return normalized
+
+
+class CompleteResourceUploadRequest(StrictModel):
+    resource_name: str = Field(min_length=1, max_length=255)
+    description: str | None = Field(default=None, max_length=1000)
+    visibility: Literal["private", "workspace", "public"] = "private"
+
+
+class CreateScriptRequest(StrictModel):
+    script_name: str = Field(min_length=1, max_length=255)
+    script_type: Literal["python", "notebook"]
+    content: str = Field(max_length=10 * 1024 * 1024)
+    visibility: Literal["private", "workspace", "public"] = "private"
+    parent_path: str | None = Field(default=None, max_length=1024)
+
+
+class CreateWorkspaceDirectoryRequest(StrictModel):
+    directory_name: str = Field(min_length=1, max_length=255)
+    parent_path: str = Field(default="", max_length=1024)
+
+
+class UpdateScriptRequest(StrictModel):
+    content: str = Field(max_length=10 * 1024 * 1024)
+
+
+class PublishVersionRequest(StrictModel):
+    source_object_id: str | None = Field(
+        default=None,
+        min_length=26,
+        max_length=26,
+    )
+    release_note: str | None = Field(default=None, max_length=1000)
+    visibility: Literal["private", "workspace", "public"] = "workspace"
+
+
+class DownloadUrlRequest(StrictModel):
+    expires_seconds: int = Field(default=300, ge=30, le=3600)
+
+
+class FileLockTokenRequest(StrictModel):
+    lock_token: str = Field(min_length=32, max_length=256)
+
+
+class CreateJupyterAccessTicketRequest(StrictModel):
+    edit_session_id: str = Field(min_length=26, max_length=26)
+    lock_token: str = Field(min_length=32, max_length=256)
diff --git a/backend/src/backend/scripts.py b/backend/src/backend/scripts.py
new file mode 100644
index 0000000..54f1a11
--- /dev/null
+++ b/backend/src/backend/scripts.py
@@ -0,0 +1,925 @@
+from __future__ import annotations
+
+import hashlib
+import json
+import mimetypes
+import os
+import shutil
+import tempfile
+from datetime import UTC, datetime
+from pathlib import Path, PurePosixPath
+from typing import Any
+
+from fastapi import (
+    APIRouter,
+    Depends,
+    Header,
+    HTTPException,
+    Query,
+    Request,
+    status,
+)
+from sqlalchemy import func, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db.models import (
+    EditSessions,
+    Scripts,
+    StorageObjects,
+    Versions,
+)
+from common.ids import new_ulid
+from backend.dependencies import (
+    RequestContext,
+    database_session,
+    request_context,
+)
+from backend.schemas import (
+    CreateScriptRequest,
+    CreateWorkspaceDirectoryRequest,
+    DownloadUrlRequest,
+    PublishVersionRequest,
+    UpdateScriptRequest,
+)
+
+router = APIRouter(tags=["scripts"])
+
+
+def normalize_user_path(value: str, *, allow_empty: bool = True) -> str:
+    normalized = value.replace("\\", "/").strip().strip("/")
+    if not normalized and allow_empty:
+        return ""
+    pure_path = PurePosixPath(normalized)
+    if (
+        pure_path.is_absolute()
+        or not pure_path.parts
+        or any(
+            part in {"", ".", ".."} or any(ord(char) < 32 for char in part)
+            for part in pure_path.parts
+        )
+    ):
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "invalid workspace path",
+        )
+    return pure_path.as_posix()
+
+
+def safe_directory_name(value: str) -> str:
+    name = value.strip()
+    if (
+        not name
+        or name in {".", ".."}
+        or name.startswith(".")
+        or "/" in name
+        or "\\" in name
+        or any(ord(char) < 32 for char in name)
+    ):
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "invalid directory_name",
+        )
+    return name
+
+
+def user_relative_path(context: RequestContext, child_path: str = "") -> str:
+    base = f"users/{context.user.username}"
+    normalized = normalize_user_path(child_path)
+    return f"{base}/{normalized}" if normalized else base
+
+
+def safe_script_name(value: str, script_type: str) -> str:
+    name = value.replace("\\", "/").rsplit("/", 1)[-1].strip()
+    if not name or name in {".", ".."} or any(ord(char) < 32 for char in name):
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "invalid script_name",
+        )
+    expected_suffix = ".py" if script_type == "python" else ".ipynb"
+    if not name.lower().endswith(expected_suffix):
+        name += expected_suffix
+    return name
+
+
+def validate_script_content(content: str, script_type: str) -> bytes:
+    encoded = content.encode("utf-8")
+    if len(encoded) > 10 * 1024 * 1024:
+        raise HTTPException(
+            status.HTTP_413_REQUEST_ENTITY_TOO_LARGE,
+            "script exceeds 10 MiB",
+        )
+    if script_type == "notebook":
+        try:
+            notebook = json.loads(content)
+        except json.JSONDecodeError as exc:
+            raise HTTPException(
+                status.HTTP_422_UNPROCESSABLE_ENTITY,
+                "notebook content must be valid JSON",
+            ) from exc
+        if not isinstance(notebook, dict) or not isinstance(
+            notebook.get("cells"),
+            list,
+        ):
+            raise HTTPException(
+                status.HTTP_422_UNPROCESSABLE_ENTITY,
+                "notebook must contain a cells array",
+            )
+    return encoded
+
+
+def workspace_target(
+    context: RequestContext,
+    relative_path: str,
+) -> Path:
+    root = Path(
+        os.getenv("WORKSPACE_ROOT", "/workspace/workspaces")
+    ).resolve()
+    scoped_root = (root / context.workspace.workspace_code).resolve()
+    pure_path = PurePosixPath(relative_path)
+    target = (scoped_root / Path(*pure_path.parts)).resolve()
+    if scoped_root not in target.parents:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "script path escapes workspace root",
+        )
+    return target
+
+
+def apply_workspace_permissions(path: Path, mode: int) -> None:
+    os.chmod(path, mode)
+    if os.name != "nt":
+        shared_gid = int(os.getenv("WORKSPACE_SHARED_GID", "100"))
+        os.chown(path, -1, shared_gid)
+
+
+def atomic_write(target: Path, content: bytes) -> None:
+    target.parent.mkdir(parents=True, exist_ok=True)
+    apply_workspace_permissions(target.parent, 0o2770)
+    descriptor, temporary_name = tempfile.mkstemp(
+        prefix=f".{target.name}.",
+        suffix=".tmp",
+        dir=target.parent,
+    )
+    try:
+        with os.fdopen(descriptor, "wb") as handle:
+            handle.write(content)
+            handle.flush()
+            os.fsync(handle.fileno())
+        os.replace(temporary_name, target)
+        apply_workspace_permissions(target, 0o660)
+    finally:
+        if os.path.exists(temporary_name):
+            os.unlink(temporary_name)
+
+
+def script_payload(
+    script: Scripts,
+    storage_object: StorageObjects | dict[str, Any],
+) -> dict[str, Any]:
+    if isinstance(storage_object, dict):
+        relative_path = storage_object.get("relative_path")
+        content_hash = storage_object.get("content_hash")
+        size_bytes = storage_object.get("size_bytes", 0)
+    else:
+        relative_path = storage_object.relative_path
+        content_hash = storage_object.content_hash
+        size_bytes = storage_object.size_bytes
+    return {
+        "script_id": script.script_id,
+        "workspace_id": script.workspace_id,
+        "current_object_id": script.current_object_id,
+        "owner_user_id": script.owner_user_id,
+        "script_name": script.script_name,
+        "script_type": script.script_type,
+        "visibility": script.visibility,
+        "status": script.status,
+        "relative_path": relative_path,
+        "content_hash": content_hash,
+        "size_bytes": size_bytes,
+        "created_at": script.created_at.isoformat(),
+        "updated_at": script.updated_at.isoformat(),
+    }
+
+
+def version_payload(version: Versions) -> dict[str, Any]:
+    return {
+        "versions_id": version.versions_id,
+        "workspace_id": version.workspace_id,
+        "script_id": version.script_id,
+        "source_object_id": version.source_object_id,
+        "artifact_object_id": version.artifact_object_id,
+        "version_no": version.version_no,
+        "version_label": version.version_label,
+        "source_path": version.source_path,
+        "artifact_path": version.artifact_path,
+        "content_hash": version.content_hash,
+        "file_size_bytes": version.file_size_bytes,
+        "visibility": version.visibility,
+        "release_note": version.release_note,
+        "created_by": version.created_by,
+        "created_at": version.created_at.isoformat(),
+    }
+
+
+async def get_script_row(
+    script_id: str,
+    context: RequestContext,
+    session: AsyncSession,
+    *,
+    for_update: bool = False,
+) -> tuple[Scripts, StorageObjects]:
+    if for_update:
+        script = await session.scalar(
+            select(Scripts)
+            .where(
+                Scripts.script_id == script_id,
+                Scripts.workspace_id == context.workspace.workspace_id,
+                Scripts.status == "active",
+            )
+            .with_for_update()
+        )
+        if script is None:
+            raise HTTPException(
+                status.HTTP_404_NOT_FOUND,
+                "script not found",
+            )
+        storage_object = await session.get(
+            StorageObjects,
+            script.current_object_id,
+        )
+        if storage_object is None:
+            raise HTTPException(
+                status.HTTP_409_CONFLICT,
+                "script working-copy metadata is missing",
+            )
+        row = (script, storage_object)
+    else:
+        statement = (
+            select(Scripts, StorageObjects)
+            .join(
+                StorageObjects,
+                StorageObjects.storage_object_id
+                == Scripts.current_object_id,
+            )
+            .where(
+                Scripts.script_id == script_id,
+                Scripts.workspace_id == context.workspace.workspace_id,
+                Scripts.status == "active",
+            )
+        )
+        row = (await session.execute(statement)).one_or_none()
+    if row is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "script not found")
+    script, storage_object = row
+    return script, storage_object
+
+
+async def require_no_active_edit_session(
+    session: AsyncSession,
+    storage_object_ids: list[str],
+) -> None:
+    if not storage_object_ids:
+        return
+    active_session = await session.scalar(
+        select(EditSessions).where(
+            EditSessions.storage_object_id.in_(storage_object_ids),
+            EditSessions.session_status == "active",
+            EditSessions.expires_at > datetime.now(UTC).replace(tzinfo=None),
+        )
+    )
+    if active_session is not None:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "file is being edited; end the editing session before deletion",
+        )
+
+
+async def create_script_record(
+    *,
+    name: str,
+    script_type: str,
+    content: bytes,
+    visibility: str,
+    parent_path: str | None,
+    request: Request,
+    context: RequestContext,
+    session: AsyncSession,
+) -> tuple[Scripts, dict[str, Any]]:
+    folder = (
+        "scripts" if script_type == "python" else "notebooks"
+    ) if parent_path is None else normalize_user_path(parent_path)
+    child_path = f"{folder}/{name}" if folder else name
+    relative_path = user_relative_path(context, child_path)
+    target = workspace_target(context, relative_path)
+
+    existing_script = await session.scalar(
+        select(Scripts)
+        .join(
+            StorageObjects,
+            StorageObjects.storage_object_id == Scripts.current_object_id,
+        )
+        .where(
+            Scripts.workspace_id == context.workspace.workspace_id,
+            StorageObjects.relative_path == relative_path,
+            Scripts.status == "active",
+        )
+    )
+    if existing_script is not None or target.exists():
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "a file with the same path already exists",
+        )
+
+    atomic_write(target, content)
+    storage_data = await request.app.state.storage_client.register_workspace_object(
+        {
+            "workspace_id": context.workspace.workspace_id,
+            "user_id": context.user.user_id,
+            "relative_path": relative_path,
+            "usage_type": "working_copy",
+            "visibility": visibility,
+        }
+    )
+    object_id = storage_data["storage_object_id"]
+    script = await session.scalar(
+        select(Scripts).where(Scripts.current_object_id == object_id)
+    )
+    now = datetime.now(UTC).replace(tzinfo=None)
+    if script is None:
+        script = Scripts(
+            script_id=new_ulid(),
+            workspace_id=context.workspace.workspace_id,
+            current_object_id=object_id,
+            owner_user_id=context.user.user_id,
+            script_name=name,
+            script_type=script_type,
+            visibility=visibility,
+            status="active",
+        )
+        session.add(script)
+    else:
+        script.owner_user_id = context.user.user_id
+        script.script_name = name
+        script.script_type = script_type
+        script.visibility = visibility
+        script.status = "active"
+        script.deleted_at = None
+        script.updated_at = now
+    await session.flush()
+    await session.refresh(script)
+    return script, storage_data
+
+
+@router.post("/api/v1/scripts", status_code=status.HTTP_201_CREATED)
+async def create_script(
+    payload: CreateScriptRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    name = safe_script_name(payload.script_name, payload.script_type)
+    content = validate_script_content(payload.content, payload.script_type)
+    script, storage_data = await create_script_record(
+        name=name,
+        script_type=payload.script_type,
+        content=content,
+        visibility=payload.visibility,
+        parent_path=payload.parent_path,
+        request=request,
+        context=context,
+        session=session,
+    )
+    return {
+        "request_id": context.request_id,
+        "data": script_payload(script, storage_data),
+        "meta": {},
+    }
+
+
+@router.post(
+    "/api/v1/scripts/upload",
+    status_code=status.HTTP_201_CREATED,
+)
+async def upload_script(
+    request: Request,
+    file_name: str = Query(min_length=1, max_length=255),
+    parent_path: str = Query(default="", max_length=1024),
+    visibility: str = Query(
+        default="workspace",
+        pattern="^(private|workspace|public)$",
+    ),
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    suffix = Path(file_name).suffix.lower()
+    if suffix not in {".py", ".ipynb"}:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "only .py and .ipynb files can be uploaded",
+        )
+    script_type = "notebook" if suffix == ".ipynb" else "python"
+    name = safe_script_name(file_name, script_type)
+    body = await request.body()
+    if len(body) > 10 * 1024 * 1024:
+        raise HTTPException(
+            status.HTTP_413_REQUEST_ENTITY_TOO_LARGE,
+            "script exceeds 10 MiB",
+        )
+    try:
+        text = body.decode("utf-8")
+    except UnicodeDecodeError as exc:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "script must use UTF-8 encoding",
+        ) from exc
+    content = validate_script_content(text, script_type)
+    script, storage_data = await create_script_record(
+        name=name,
+        script_type=script_type,
+        content=content,
+        visibility=visibility,
+        parent_path=parent_path,
+        request=request,
+        context=context,
+        session=session,
+    )
+    return {
+        "request_id": context.request_id,
+        "data": script_payload(script, storage_data),
+        "meta": {},
+    }
+
+
+@router.get("/api/v1/workspace-tree")
+async def get_workspace_tree(
+    context: RequestContext = Depends(request_context),
+) -> dict[str, Any]:
+    root = workspace_target(context, user_relative_path(context))
+    root.mkdir(parents=True, exist_ok=True)
+    apply_workspace_permissions(root, 0o2770)
+    directories: list[dict[str, str]] = []
+    for current, names, _files in os.walk(root, followlinks=False):
+        names[:] = sorted(
+            name
+            for name in names
+            if not name.startswith(".")
+            and not (Path(current) / name).is_symlink()
+        )
+        current_path = Path(current)
+        if current_path == root:
+            continue
+        relative = current_path.relative_to(root).as_posix()
+        parent = PurePosixPath(relative).parent.as_posix()
+        directories.append(
+            {
+                "path": relative,
+                "name": current_path.name,
+                "parent_path": "" if parent == "." else parent,
+            }
+        )
+    return {
+        "request_id": context.request_id,
+        "data": {"directories": directories},
+        "meta": {"directory_count": len(directories)},
+    }
+
+
+@router.post(
+    "/api/v1/workspace-directories",
+    status_code=status.HTTP_201_CREATED,
+)
+async def create_workspace_directory(
+    payload: CreateWorkspaceDirectoryRequest,
+    context: RequestContext = Depends(request_context),
+) -> dict[str, Any]:
+    name = safe_directory_name(payload.directory_name)
+    parent = normalize_user_path(payload.parent_path)
+    child_path = f"{parent}/{name}" if parent else name
+    target = workspace_target(context, user_relative_path(context, child_path))
+    parent_target = target.parent
+    user_root = workspace_target(context, user_relative_path(context))
+    if (
+        not parent_target.is_dir()
+        or (
+            parent_target != user_root
+            and user_root not in parent_target.parents
+        )
+    ):
+        raise HTTPException(
+            status.HTTP_404_NOT_FOUND,
+            "parent directory not found",
+        )
+    if target.exists():
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "a file or directory with the same path already exists",
+        )
+    target.mkdir(parents=False)
+    apply_workspace_permissions(target, 0o2770)
+    return {
+        "request_id": context.request_id,
+        "data": {
+            "path": child_path,
+            "name": name,
+            "parent_path": parent,
+        },
+        "meta": {},
+    }
+
+
+@router.delete("/api/v1/workspace-directories")
+async def delete_workspace_directory(
+    request: Request,
+    path: str = Query(min_length=1, max_length=1024),
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    directory_path = normalize_user_path(path, allow_empty=False)
+    relative_prefix = user_relative_path(context, directory_path)
+    target = workspace_target(context, relative_prefix)
+    if not target.is_dir() or target.is_symlink():
+        raise HTTPException(
+            status.HTTP_404_NOT_FOUND,
+            "directory not found",
+        )
+
+    rows = (
+        await session.execute(
+            select(Scripts, StorageObjects)
+            .join(
+                StorageObjects,
+                StorageObjects.storage_object_id == Scripts.current_object_id,
+            )
+            .where(
+                Scripts.workspace_id == context.workspace.workspace_id,
+                Scripts.owner_user_id == context.user.user_id,
+                Scripts.status == "active",
+                StorageObjects.relative_path.startswith(
+                    f"{relative_prefix}/"
+                ),
+            )
+        )
+    ).all()
+    await require_no_active_edit_session(
+        session,
+        [script.current_object_id for script, _storage in rows],
+    )
+    for script, _storage in rows:
+        await request.app.state.storage_client.delete_object(
+            script.current_object_id
+        )
+        script.status = "deleted"
+        script.deleted_at = datetime.now(UTC).replace(tzinfo=None)
+    shutil.rmtree(target)
+    return {
+        "request_id": context.request_id,
+        "data": {
+            "path": directory_path,
+            "status": "deleted",
+            "deleted_scripts": len(rows),
+            "versions_preserved": True,
+        },
+        "meta": {},
+    }
+
+
+@router.get("/api/v1/scripts")
+async def list_scripts(
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    statement = (
+        select(Scripts, StorageObjects)
+        .join(
+            StorageObjects,
+            StorageObjects.storage_object_id == Scripts.current_object_id,
+        )
+        .where(
+            Scripts.workspace_id == context.workspace.workspace_id,
+            Scripts.status == "active",
+        )
+        .order_by(Scripts.updated_at.desc())
+    )
+    rows = (await session.execute(statement)).all()
+    return {
+        "request_id": context.request_id,
+        "data": [
+            script_payload(script, storage_object)
+            for script, storage_object in rows
+        ],
+        "meta": {"count": len(rows)},
+    }
+
+
+@router.get("/api/v1/scripts/{script_id}")
+async def get_script(
+    script_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    script, storage_object = await get_script_row(
+        script_id,
+        context,
+        session,
+    )
+    return {
+        "request_id": context.request_id,
+        "data": script_payload(script, storage_object),
+        "meta": {},
+    }
+
+
+@router.put("/api/v1/scripts/{script_id}")
+async def update_script(
+    script_id: str,
+    payload: UpdateScriptRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    script, storage_object = await get_script_row(
+        script_id,
+        context,
+        session,
+        for_update=True,
+    )
+    if (
+        script.owner_user_id != context.user.user_id
+        and not context.is_admin
+    ):
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "script can only be changed by its owner or an administrator",
+        )
+    content = validate_script_content(payload.content, script.script_type)
+    if not storage_object.relative_path:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "script has no workspace path",
+        )
+    target = workspace_target(context, storage_object.relative_path)
+    atomic_write(target, content)
+    storage_data = await request.app.state.storage_client.register_workspace_object(
+        {
+            "workspace_id": context.workspace.workspace_id,
+            "user_id": script.owner_user_id,
+            "relative_path": storage_object.relative_path,
+            "usage_type": "working_copy",
+            "visibility": script.visibility,
+        }
+    )
+    storage_object.content_hash = storage_data["content_hash"]
+    storage_object.size_bytes = storage_data["size_bytes"]
+    script.updated_at = datetime.now(UTC).replace(tzinfo=None)
+    return {
+        "request_id": context.request_id,
+        "data": script_payload(script, storage_object),
+        "meta": {},
+    }
+
+
+@router.delete("/api/v1/scripts/{script_id}")
+async def delete_script(
+    script_id: str,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    script, storage_object = await get_script_row(
+        script_id,
+        context,
+        session,
+        for_update=True,
+    )
+    if (
+        script.owner_user_id != context.user.user_id
+        and not context.is_admin
+    ):
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "script can only be deleted by its owner or an administrator",
+        )
+    await require_no_active_edit_session(
+        session,
+        [script.current_object_id],
+    )
+    if storage_object.relative_path:
+        target = workspace_target(context, storage_object.relative_path)
+        if target.is_file():
+            target.unlink()
+    await request.app.state.storage_client.delete_object(
+        script.current_object_id
+    )
+    script.status = "deleted"
+    script.deleted_at = datetime.now(UTC).replace(tzinfo=None)
+    return {
+        "request_id": context.request_id,
+        "data": {
+            "script_id": script.script_id,
+            "status": script.status,
+            "versions_preserved": True,
+        },
+        "meta": {},
+    }
+
+
+@router.post(
+    "/api/v1/scripts/{script_id}/versions",
+    status_code=status.HTTP_201_CREATED,
+)
+async def publish_version(
+    script_id: str,
+    payload: PublishVersionRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    script, source_object = await get_script_row(
+        script_id,
+        context,
+        session,
+        for_update=True,
+    )
+    if (
+        script.owner_user_id != context.user.user_id
+        and not context.is_admin
+    ):
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "script can only be published by its owner or an administrator",
+        )
+    if (
+        payload.source_object_id
+        and payload.source_object_id != script.current_object_id
+    ):
+        raise HTTPException(
+            status.HTTP_412_PRECONDITION_FAILED,
+            "source_object_id is not the current working copy",
+        )
+    if not source_object.relative_path:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "script has no workspace path",
+        )
+    target = workspace_target(context, source_object.relative_path)
+    if not target.is_file():
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "script working copy is missing",
+        )
+    content = target.read_bytes()
+    content_hash = hashlib.sha256(content).hexdigest()
+    existing = await session.scalar(
+        select(Versions).where(
+            Versions.script_id == script.script_id,
+            Versions.content_hash == content_hash,
+        )
+    )
+    if existing is not None:
+        return {
+            "request_id": context.request_id,
+            "data": version_payload(existing),
+            "meta": {"reused": True},
+        }
+    content_type = (
+        mimetypes.guess_type(script.script_name)[0]
+        or "application/octet-stream"
+    )
+    artifact = await request.app.state.storage_client.create_server_object(
+        workspace_id=context.workspace.workspace_id,
+        user_id=context.user.user_id,
+        usage_type="version_artifact",
+        file_name=script.script_name,
+        content_type=content_type,
+        content=content,
+        visibility=payload.visibility,
+        is_immutable=True,
+        idempotency_key=f"version:{script.script_id}:{content_hash}",
+    )
+    current_max = await session.scalar(
+        select(func.max(Versions.version_no)).where(
+            Versions.script_id == script.script_id
+        )
+    )
+    version_no = int(current_max or 0) + 1
+    version = Versions(
+        versions_id=new_ulid(),
+        workspace_id=context.workspace.workspace_id,
+        script_id=script.script_id,
+        source_object_id=script.current_object_id,
+        artifact_object_id=artifact["storage_object_id"],
+        version_no=version_no,
+        version_label=f"v{version_no}.0",
+        source_path=source_object.relative_path,
+        artifact_path=artifact["storage_uri"],
+        content_hash=content_hash,
+        file_size_bytes=len(content),
+        visibility=payload.visibility,
+        release_note=payload.release_note,
+        created_by=context.user.user_id,
+    )
+    session.add(version)
+    await session.flush()
+    await session.refresh(version)
+    return {
+        "request_id": context.request_id,
+        "data": version_payload(version),
+        "meta": {"reused": False},
+    }
+
+
+@router.get("/api/v1/scripts/{script_id}/versions")
+async def list_versions(
+    script_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    await get_script_row(script_id, context, session)
+    versions = (
+        await session.scalars(
+            select(Versions)
+            .where(Versions.script_id == script_id)
+            .order_by(Versions.version_no.desc())
+        )
+    ).all()
+    return {
+        "request_id": context.request_id,
+        "data": [version_payload(version) for version in versions],
+        "meta": {"count": len(versions)},
+    }
+
+
+@router.get("/api/v1/versions/{versions_id}")
+async def get_version(
+    versions_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    version = await session.get(Versions, versions_id)
+    if (
+        version is None
+        or version.workspace_id != context.workspace.workspace_id
+    ):
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "version not found")
+    return {
+        "request_id": context.request_id,
+        "data": version_payload(version),
+        "meta": {},
+    }
+
+
+@router.delete("/api/v1/versions/{versions_id}")
+async def delete_version(
+    versions_id: str,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    version = await session.get(Versions, versions_id)
+    if (
+        version is None
+        or version.workspace_id != context.workspace.workspace_id
+    ):
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "稳定版本不存在")
+    if (
+        version.created_by != context.user.user_id
+        and not context.is_admin
+    ):
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "仅稳定版本发布者或管理员可以删除",
+        )
+
+    version.schedule_hidden_at = datetime.now(UTC).replace(tzinfo=None)
+    await session.flush()
+    return {
+        "request_id": context.request_id,
+        "data": {
+            "versions_id": versions_id,
+            "deleted": True,
+            "artifact_preserved": True,
+        },
+        "meta": {
+            "message": "已从调度稳定版本列表移除；稳定版本和历史记录保持不变",
+        },
+    }
+
+
+@router.post("/api/v1/versions/{versions_id}/download-url")
+async def version_download_url(
+    versions_id: str,
+    payload: DownloadUrlRequest,
+    request: Request,
+    context: RequestContext = Depends(request_context),
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    version = await session.get(Versions, versions_id)
+    if (
+        version is None
+        or version.workspace_id != context.workspace.workspace_id
+    ):
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "version not found")
+    data = await request.app.state.storage_client.create_download_url(
+        version.artifact_object_id,
+        payload.expires_seconds,
+    )
+    return {"request_id": context.request_id, "data": data, "meta": {}}
diff --git a/backend/src/backend/storage_api.py b/backend/src/backend/storage_api.py
new file mode 100644
index 0000000..bfd0ffc
--- /dev/null
+++ b/backend/src/backend/storage_api.py
@@ -0,0 +1,681 @@
+from __future__ import annotations
+
+import asyncio
+import base64
+import binascii
+import hashlib
+import mimetypes
+import os
+import secrets
+from contextlib import asynccontextmanager
+from datetime import UTC, datetime, timedelta
+from pathlib import Path, PurePosixPath
+from typing import Any, AsyncIterator
+
+from fastapi import Depends, Header, HTTPException, Request, status
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db import create_database_engine, create_session_factory
+from common.db.models import (
+    StorageObjects,
+    UploadSessions,
+    Users,
+    WorkspaceMembers,
+    Workspaces,
+)
+from common.ids import new_ulid
+from common.service_app import create_service_app
+from common.storage import RustFSObjectStore
+from backend.storage_schemas import (
+    CompleteUploadRequest,
+    CreateUploadRequest,
+    DownloadUrlRequest,
+    RegisterWorkspaceObjectRequest,
+    ServerObjectRequest,
+)
+
+
+def utcnow() -> datetime:
+    return datetime.now(UTC).replace(tzinfo=None)
+
+
+def hash_bytes(value: str) -> bytes:
+    return hashlib.sha256(value.encode("utf-8")).digest()
+
+
+def normalized_idempotency_key(
+    workspace_id: str,
+    user_id: str,
+    value: str,
+) -> str:
+    digest = hashlib.sha256(
+        f"{workspace_id}:{user_id}:{value}".encode("utf-8")
+    ).hexdigest()
+    return f"v1:{digest}"
+
+
+def safe_file_name(value: str) -> str:
+    name = value.replace("\\", "/").rsplit("/", 1)[-1].strip()
+    if not name or name in {".", ".."} or any(ord(char) < 32 for char in name):
+        raise HTTPException(status.HTTP_422_UNPROCESSABLE_ENTITY, "invalid file_name")
+    return name
+
+
+def storage_payload(item: StorageObjects) -> dict[str, Any]:
+    return {
+        "storage_object_id": item.storage_object_id,
+        "workspace_id": item.workspace_id,
+        "owner_user_id": item.owner_user_id,
+        "storage_backend": item.storage_backend,
+        "usage_type": item.usage_type,
+        "storage_uri": item.storage_uri,
+        "relative_path": item.relative_path,
+        "file_name": item.file_name,
+        "file_extension": item.file_extension,
+        "mime_type": item.mime_type,
+        "size_bytes": item.size_bytes,
+        "content_hash": item.content_hash,
+        "visibility": item.visibility,
+        "is_immutable": bool(item.is_immutable),
+        "object_status": item.object_status,
+        "created_at": item.created_at.isoformat(),
+        "updated_at": item.updated_at.isoformat(),
+    }
+
+
+@asynccontextmanager
+async def lifespan(app: Any) -> AsyncIterator[None]:
+    database_url = os.environ["DATABASE_URL"]
+    engine = create_database_engine(database_url)
+    app.state.session_factory = create_session_factory(engine)
+    app.state.object_store = RustFSObjectStore(
+        internal_endpoint=os.getenv(
+            "RUSTFS_INTERNAL_ENDPOINT",
+            "http://rustfs:9000",
+        ),
+        public_endpoint=os.getenv(
+            "RUSTFS_PUBLIC_ENDPOINT",
+            "http://localhost:9000",
+        ),
+        access_key=os.environ["RUSTFS_ACCESS_KEY"],
+        secret_key=os.environ["RUSTFS_SECRET_KEY"],
+    )
+    app.state.default_bucket = os.getenv(
+        "RUSTFS_DEFAULT_BUCKET",
+        "model-platform",
+    )
+    await asyncio.to_thread(
+        app.state.object_store.ensure_bucket,
+        app.state.default_bucket,
+    )
+    try:
+        yield
+    finally:
+        await engine.dispose()
+
+
+app = create_service_app(
+    os.getenv("SERVICE_NAME", "storage-api"),
+    lifespan=lifespan,
+)
+
+
+async def database_session(request: Request) -> AsyncIterator[AsyncSession]:
+    async with request.app.state.session_factory() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise
+
+
+def verify_internal_service(
+    x_service_token: str = Header(alias="X-Service-Token"),
+) -> None:
+    expected = os.environ.get("INTERNAL_SERVICE_TOKEN", "")
+    if not expected or not secrets.compare_digest(expected, x_service_token):
+        raise HTTPException(
+            status.HTTP_401_UNAUTHORIZED,
+            "invalid internal service identity",
+        )
+
+
+async def require_workspace_member(
+    session: AsyncSession,
+    workspace_id: str,
+    user_id: str,
+) -> Workspaces:
+    statement = (
+        select(Workspaces)
+        .join(
+            WorkspaceMembers,
+            WorkspaceMembers.workspace_id == Workspaces.workspace_id,
+        )
+        .join(Users, Users.user_id == WorkspaceMembers.user_id)
+        .where(
+            Workspaces.workspace_id == workspace_id,
+            Workspaces.status == "active",
+            WorkspaceMembers.user_id == user_id,
+            WorkspaceMembers.member_status == "active",
+            Users.status == "active",
+        )
+    )
+    workspace = await session.scalar(statement)
+    if workspace is None:
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "user is not an active workspace member",
+        )
+    return workspace
+
+
+async def create_upload_record(
+    payload: CreateUploadRequest,
+    session: AsyncSession,
+    request: Request,
+) -> dict[str, Any]:
+    workspace = await require_workspace_member(
+        session,
+        payload.workspace_id,
+        payload.user_id,
+    )
+    stored_key = normalized_idempotency_key(
+        payload.workspace_id,
+        payload.user_id,
+        payload.idempotency_key,
+    )
+    existing = await session.scalar(
+        select(UploadSessions).where(
+            UploadSessions.idempotency_key == stored_key
+        )
+    )
+    if existing is not None:
+        if (
+            existing.workspace_id != payload.workspace_id
+            or existing.user_id != payload.user_id
+            or existing.expected_size_bytes != payload.expected_size_bytes
+            or existing.expected_hash != payload.expected_hash
+            or existing.content_type != payload.content_type
+        ):
+            raise HTTPException(
+                status.HTTP_409_CONFLICT,
+                "idempotency key was used with different upload metadata",
+            )
+        upload = existing
+    else:
+        upload_id = new_ulid()
+        file_name = safe_file_name(payload.file_name)
+        bucket_name = (
+            workspace.artifact_bucket or request.app.state.default_bucket
+        )
+        object_key = (
+            f"workspaces/{payload.workspace_id}/"
+            f"{payload.usage_type}/{upload_id}/{file_name}"
+        )
+        upload = UploadSessions(
+            upload_id=upload_id,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+            idempotency_key=stored_key,
+            bucket_name=bucket_name,
+            object_key=object_key,
+            object_key_hash=hash_bytes(object_key),
+            upload_status="created",
+            expires_at=utcnow() + timedelta(minutes=15),
+            expected_size_bytes=payload.expected_size_bytes,
+            expected_hash=payload.expected_hash,
+            content_type=payload.content_type,
+        )
+        session.add(upload)
+        await session.flush()
+
+    if upload.upload_status == "completed" and upload.storage_object_id:
+        storage_object = await session.get(
+            StorageObjects,
+            upload.storage_object_id,
+        )
+        return {
+            "upload_id": upload.upload_id,
+            "status": upload.upload_status,
+            "storage_object": (
+                storage_payload(storage_object) if storage_object else None
+            ),
+        }
+    if upload.upload_status not in {"created", "uploading"}:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            f"upload cannot continue from status {upload.upload_status}",
+        )
+
+    url, headers = request.app.state.object_store.presign_put(
+        bucket_name=upload.bucket_name,
+        object_key=upload.object_key,
+        content_type=upload.content_type or "application/octet-stream",
+        expected_hash=upload.expected_hash,
+        expires_seconds=900,
+        public=payload.url_scope == "public",
+    )
+    return {
+        "upload_id": upload.upload_id,
+        "status": upload.upload_status,
+        "method": "PUT",
+        "presigned_url": url,
+        "required_headers": headers,
+        "expires_at": upload.expires_at.isoformat(),
+    }
+
+
+async def complete_upload_record(
+    upload_id: str,
+    payload: CompleteUploadRequest,
+    session: AsyncSession,
+    request: Request,
+) -> StorageObjects:
+    upload = await session.scalar(
+        select(UploadSessions)
+        .where(UploadSessions.upload_id == upload_id)
+        .with_for_update()
+    )
+    if upload is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "upload not found")
+    if upload.upload_status == "completed" and upload.storage_object_id:
+        item = await session.get(StorageObjects, upload.storage_object_id)
+        if item is None:
+            raise HTTPException(
+                status.HTTP_409_CONFLICT,
+                "completed upload has no storage object",
+            )
+        return item
+    if upload.upload_status not in {"created", "uploading"}:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            f"upload cannot be completed from status {upload.upload_status}",
+        )
+    if upload.expires_at < utcnow():
+        upload.upload_status = "expired"
+        raise HTTPException(status.HTTP_409_CONFLICT, "upload expired")
+
+    try:
+        head = await asyncio.to_thread(
+            request.app.state.object_store.head,
+            bucket_name=upload.bucket_name,
+            object_key=upload.object_key,
+        )
+    except Exception as exc:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "uploaded object is not available",
+        ) from exc
+
+    actual_size = int(head.get("ContentLength", 0))
+    if (
+        upload.expected_size_bytes is not None
+        and actual_size != upload.expected_size_bytes
+    ):
+        upload.upload_status = "failed"
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "uploaded object size does not match expected_size_bytes",
+        )
+    actual_content_type = str(
+        head.get("ContentType") or "application/octet-stream"
+    )
+    if upload.content_type and actual_content_type != upload.content_type:
+        upload.upload_status = "failed"
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "uploaded object content type does not match",
+        )
+    metadata = {
+        str(key).lower(): str(value).lower()
+        for key, value in dict(head.get("Metadata") or {}).items()
+    }
+    actual_hash = metadata.get("sha256")
+    if not actual_hash:
+        actual_hash = await asyncio.to_thread(
+            request.app.state.object_store.sha256,
+            bucket_name=upload.bucket_name,
+            object_key=upload.object_key,
+        )
+    if upload.expected_hash and actual_hash != upload.expected_hash:
+        upload.upload_status = "failed"
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "uploaded object hash does not match expected_hash",
+        )
+
+    file_name = upload.object_key.rsplit("/", 1)[-1]
+    item = StorageObjects(
+        storage_object_id=new_ulid(),
+        workspace_id=upload.workspace_id,
+        owner_user_id=upload.user_id,
+        object_type="file",
+        usage_type=payload.usage_type,
+        storage_backend="rustfs",
+        bucket_name=upload.bucket_name,
+        object_key=upload.object_key,
+        object_key_hash=upload.object_key_hash,
+        storage_uri=f"s3://{upload.bucket_name}/{upload.object_key}",
+        file_name=file_name,
+        file_extension=Path(file_name).suffix.lower() or None,
+        mime_type=actual_content_type,
+        size_bytes=actual_size,
+        content_hash=actual_hash,
+        object_etag=str(head.get("ETag", "")).strip('"') or None,
+        visibility=payload.visibility,
+        is_immutable=int(payload.is_immutable),
+        object_status="available",
+        created_by=upload.user_id,
+    )
+    session.add(item)
+    await session.flush()
+    await session.refresh(item)
+    upload.storage_object_id = item.storage_object_id
+    upload.upload_status = "completed"
+    upload.completed_at = utcnow()
+    return item
+
+
+@app.post("/internal/v1/uploads", dependencies=[Depends(verify_internal_service)])
+async def create_upload(
+    payload: CreateUploadRequest,
+    request: Request,
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    return {
+        "data": await create_upload_record(payload, session, request),
+    }
+
+
+@app.post(
+    "/internal/v1/uploads/{upload_id}/complete",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def complete_upload(
+    upload_id: str,
+    payload: CompleteUploadRequest,
+    request: Request,
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    item = await complete_upload_record(
+        upload_id,
+        payload,
+        session,
+        request,
+    )
+    return {"data": storage_payload(item)}
+
+
+@app.post(
+    "/internal/v1/uploads/{upload_id}/abort",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def abort_upload(
+    upload_id: str,
+    request: Request,
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    upload = await session.scalar(
+        select(UploadSessions)
+        .where(UploadSessions.upload_id == upload_id)
+        .with_for_update()
+    )
+    if upload is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "upload not found")
+    if upload.upload_status == "completed":
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "completed upload cannot be aborted",
+        )
+    if upload.upload_status != "aborted":
+        await asyncio.to_thread(
+            request.app.state.object_store.delete,
+            bucket_name=upload.bucket_name,
+            object_key=upload.object_key,
+        )
+        upload.upload_status = "aborted"
+    return {"data": {"upload_id": upload_id, "status": "aborted"}}
+
+
+@app.post(
+    "/internal/v1/objects",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def create_server_object(
+    payload: ServerObjectRequest,
+    request: Request,
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    try:
+        content = base64.b64decode(payload.content_base64, validate=True)
+    except (binascii.Error, ValueError) as exc:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "content_base64 is invalid",
+        ) from exc
+    if len(content) > 100 * 1024 * 1024:
+        raise HTTPException(
+            status.HTTP_413_REQUEST_ENTITY_TOO_LARGE,
+            "object exceeds 100 MiB server-side upload limit",
+        )
+    content_hash = hashlib.sha256(content).hexdigest()
+    upload_result = await create_upload_record(
+        CreateUploadRequest(
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+            usage_type=payload.usage_type,
+            file_name=payload.file_name,
+            content_type=payload.content_type,
+            expected_size_bytes=len(content),
+            expected_hash=content_hash,
+            idempotency_key=payload.idempotency_key,
+            url_scope="internal",
+        ),
+        session,
+        request,
+    )
+    if upload_result.get("status") == "completed":
+        return {"data": upload_result["storage_object"], "meta": {"reused": True}}
+
+    upload = await session.get(UploadSessions, upload_result["upload_id"])
+    if upload is None:
+        raise HTTPException(
+            status.HTTP_500_INTERNAL_SERVER_ERROR,
+            "upload record disappeared",
+        )
+    await asyncio.to_thread(
+        request.app.state.object_store.put_bytes,
+        bucket_name=upload.bucket_name,
+        object_key=upload.object_key,
+        content=content,
+        content_type=payload.content_type,
+        content_hash=content_hash,
+    )
+    item = await complete_upload_record(
+        upload.upload_id,
+        CompleteUploadRequest(
+            usage_type=payload.usage_type,
+            visibility=payload.visibility,
+            is_immutable=payload.is_immutable,
+        ),
+        session,
+        request,
+    )
+    return {"data": storage_payload(item), "meta": {"reused": False}}
+
+
+@app.post(
+    "/internal/v1/workspace-objects",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def register_workspace_object(
+    payload: RegisterWorkspaceObjectRequest,
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    workspace = await require_workspace_member(
+        session,
+        payload.workspace_id,
+        payload.user_id,
+    )
+    pure_path = PurePosixPath(payload.relative_path.replace("\\", "/"))
+    if (
+        pure_path.is_absolute()
+        or not pure_path.parts
+        or any(part in {"", ".", ".."} for part in pure_path.parts)
+    ):
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "invalid workspace relative_path",
+        )
+    relative_path = pure_path.as_posix()
+    workspace_root = Path(
+        os.getenv("WORKSPACE_ROOT", "/workspace/workspaces")
+    ).resolve()
+    scoped_root = (workspace_root / workspace.workspace_code).resolve()
+    target = (scoped_root / Path(*pure_path.parts)).resolve()
+    if scoped_root != target and scoped_root not in target.parents:
+        raise HTTPException(
+            status.HTTP_422_UNPROCESSABLE_ENTITY,
+            "workspace path escapes its root",
+        )
+    if not target.is_file():
+        raise HTTPException(
+            status.HTTP_404_NOT_FOUND,
+            "workspace file does not exist",
+        )
+    content = await asyncio.to_thread(target.read_bytes)
+    content_hash = hashlib.sha256(content).hexdigest()
+    stat_result = target.stat()
+    path_digest = hash_bytes(relative_path)
+    item = await session.scalar(
+        select(StorageObjects).where(
+            StorageObjects.workspace_id == payload.workspace_id,
+            StorageObjects.storage_backend == "workspace_fs",
+            StorageObjects.path_hash == path_digest,
+        )
+    )
+    reused = item is not None
+    if item is None:
+        item = StorageObjects(
+            storage_object_id=new_ulid(),
+            workspace_id=payload.workspace_id,
+            owner_user_id=payload.user_id,
+            object_type="file",
+            usage_type=payload.usage_type,
+            storage_backend="workspace_fs",
+            relative_path=relative_path,
+            path_hash=path_digest,
+            storage_uri=target.as_uri(),
+            file_name=target.name,
+            visibility=payload.visibility,
+            is_immutable=0,
+            object_status="available",
+            created_by=payload.user_id,
+        )
+        session.add(item)
+    elif item.is_immutable:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "immutable workspace object cannot be updated",
+        )
+    elif item.owner_user_id != payload.user_id:
+        raise HTTPException(
+            status.HTTP_403_FORBIDDEN,
+            "workspace object belongs to another user",
+        )
+    item.usage_type = payload.usage_type
+    item.file_name = target.name
+    item.file_extension = target.suffix.lower() or None
+    item.mime_type = (
+        mimetypes.guess_type(target.name)[0] or "application/octet-stream"
+    )
+    item.size_bytes = stat_result.st_size
+    item.content_hash = content_hash
+    item.visibility = payload.visibility
+    item.object_status = "available"
+    await session.flush()
+    await session.refresh(item)
+    return {"data": storage_payload(item), "meta": {"reused": reused}}
+
+
+@app.post(
+    "/internal/v1/objects/{storage_object_id}/download-url",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def create_download_url(
+    storage_object_id: str,
+    payload: DownloadUrlRequest,
+    request: Request,
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    item = await session.get(StorageObjects, storage_object_id)
+    if item is None or item.object_status != "available":
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "object not found")
+    if (
+        item.storage_backend != "rustfs"
+        or not item.bucket_name
+        or not item.object_key
+    ):
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "object does not support a presigned URL",
+        )
+    url = request.app.state.object_store.presign_get(
+        bucket_name=item.bucket_name,
+        object_key=item.object_key,
+        file_name=item.file_name,
+        expires_seconds=payload.expires_seconds,
+    )
+    return {
+        "data": {
+            "storage_object_id": item.storage_object_id,
+            "presigned_url": url,
+            "method": "GET",
+            "expires_in_seconds": payload.expires_seconds,
+        }
+    }
+
+
+@app.delete(
+    "/internal/v1/objects/{storage_object_id}",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def delete_object(
+    storage_object_id: str,
+    request: Request,
+    session: AsyncSession = Depends(database_session),
+) -> dict[str, Any]:
+    item = await session.scalar(
+        select(StorageObjects)
+        .where(StorageObjects.storage_object_id == storage_object_id)
+        .with_for_update()
+    )
+    if item is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "object not found")
+    if item.is_immutable:
+        raise HTTPException(
+            status.HTTP_409_CONFLICT,
+            "immutable object cannot be deleted",
+        )
+    if item.object_status != "deleted":
+        if item.storage_backend == "rustfs" and item.bucket_name and item.object_key:
+            await asyncio.to_thread(
+                request.app.state.object_store.delete,
+                bucket_name=item.bucket_name,
+                object_key=item.object_key,
+            )
+        item.object_status = "deleted"
+        item.deleted_at = utcnow()
+    return {
+        "data": {
+            "storage_object_id": storage_object_id,
+            "object_status": item.object_status,
+        }
+    }
+
+
+@app.get("/internal/health/storage")
+async def internal_health() -> dict[str, str]:
+    return {"status": "ready", "service": "storage-api"}
diff --git a/backend/src/backend/storage_client.py b/backend/src/backend/storage_client.py
new file mode 100644
index 0000000..8a57826
--- /dev/null
+++ b/backend/src/backend/storage_client.py
@@ -0,0 +1,116 @@
+from __future__ import annotations
+
+import base64
+from typing import Any
+
+import httpx
+from fastapi import HTTPException
+
+
+class StorageClient:
+    def __init__(
+        self,
+        client: httpx.AsyncClient,
+        service_token: str,
+    ) -> None:
+        self.client = client
+        self.headers = {"X-Service-Token": service_token}
+
+    async def _request(
+        self,
+        method: str,
+        path: str,
+        *,
+        payload: dict[str, Any] | None = None,
+    ) -> dict[str, Any]:
+        response = await self.client.request(
+            method,
+            path,
+            json=payload,
+            headers=self.headers,
+        )
+        if response.is_error:
+            try:
+                detail = response.json().get("detail", response.text)
+            except ValueError:
+                detail = response.text
+            raise HTTPException(response.status_code, detail)
+        return response.json()
+
+    async def create_upload(
+        self,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        return (await self._request(
+            "POST",
+            "/internal/v1/uploads",
+            payload=payload,
+        ))["data"]
+
+    async def complete_upload(
+        self,
+        upload_id: str,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        return (await self._request(
+            "POST",
+            f"/internal/v1/uploads/{upload_id}/complete",
+            payload=payload,
+        ))["data"]
+
+    async def register_workspace_object(
+        self,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        return (await self._request(
+            "POST",
+            "/internal/v1/workspace-objects",
+            payload=payload,
+        ))["data"]
+
+    async def create_server_object(
+        self,
+        *,
+        workspace_id: str,
+        user_id: str,
+        usage_type: str,
+        file_name: str,
+        content_type: str,
+        content: bytes,
+        visibility: str,
+        is_immutable: bool,
+        idempotency_key: str,
+    ) -> dict[str, Any]:
+        result = await self._request(
+            "POST",
+            "/internal/v1/objects",
+            payload={
+                "workspace_id": workspace_id,
+                "user_id": user_id,
+                "usage_type": usage_type,
+                "file_name": file_name,
+                "content_type": content_type,
+                "content_base64": base64.b64encode(content).decode("ascii"),
+                "visibility": visibility,
+                "is_immutable": is_immutable,
+                "idempotency_key": idempotency_key,
+            },
+        )
+        return result["data"]
+
+    async def create_download_url(
+        self,
+        storage_object_id: str,
+        expires_seconds: int,
+    ) -> dict[str, Any]:
+        return (await self._request(
+            "POST",
+            f"/internal/v1/objects/{storage_object_id}/download-url",
+            payload={"expires_seconds": expires_seconds},
+        ))["data"]
+
+    async def delete_object(self, storage_object_id: str) -> dict[str, Any]:
+        return (await self._request(
+            "DELETE",
+            f"/internal/v1/objects/{storage_object_id}",
+        ))["data"]
diff --git a/backend/src/backend/storage_schemas.py b/backend/src/backend/storage_schemas.py
new file mode 100644
index 0000000..0e5f36f
--- /dev/null
+++ b/backend/src/backend/storage_schemas.py
@@ -0,0 +1,79 @@
+from __future__ import annotations
+
+from typing import Literal
+
+from pydantic import BaseModel, ConfigDict, Field, field_validator
+
+
+class StrictModel(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+
+class CreateUploadRequest(StrictModel):
+    workspace_id: str = Field(min_length=26, max_length=26)
+    user_id: str = Field(min_length=26, max_length=26)
+    usage_type: Literal[
+        "data_resource",
+        "version_artifact",
+        "snapshot",
+        "run_log",
+        "run_result",
+    ]
+    file_name: str = Field(min_length=1, max_length=255)
+    content_type: str = Field(min_length=1, max_length=255)
+    expected_size_bytes: int = Field(ge=0, le=100 * 1024 * 1024)
+    expected_hash: str | None = Field(default=None, min_length=64, max_length=64)
+    idempotency_key: str = Field(min_length=8, max_length=128)
+    url_scope: Literal["public", "internal"] = "public"
+
+    @field_validator("expected_hash")
+    @classmethod
+    def validate_hash(cls, value: str | None) -> str | None:
+        if value is None:
+            return None
+        normalized = value.lower()
+        if any(character not in "0123456789abcdef" for character in normalized):
+            raise ValueError("expected_hash must be lowercase SHA-256 hex")
+        return normalized
+
+
+class CompleteUploadRequest(StrictModel):
+    usage_type: Literal[
+        "data_resource",
+        "version_artifact",
+        "snapshot",
+        "run_log",
+        "run_result",
+    ]
+    visibility: Literal["private", "workspace", "public"] = "private"
+    is_immutable: bool = False
+
+
+class ServerObjectRequest(StrictModel):
+    workspace_id: str = Field(min_length=26, max_length=26)
+    user_id: str = Field(min_length=26, max_length=26)
+    usage_type: Literal[
+        "data_resource",
+        "version_artifact",
+        "snapshot",
+        "run_log",
+        "run_result",
+    ]
+    file_name: str = Field(min_length=1, max_length=255)
+    content_type: str = Field(min_length=1, max_length=255)
+    content_base64: str = Field(min_length=1)
+    visibility: Literal["private", "workspace", "public"] = "private"
+    is_immutable: bool = False
+    idempotency_key: str = Field(min_length=8, max_length=128)
+
+
+class RegisterWorkspaceObjectRequest(StrictModel):
+    workspace_id: str = Field(min_length=26, max_length=26)
+    user_id: str = Field(min_length=26, max_length=26)
+    relative_path: str = Field(min_length=1, max_length=1024)
+    usage_type: Literal["working_copy", "public_script"]
+    visibility: Literal["private", "workspace", "public"] = "private"
+
+
+class DownloadUrlRequest(StrictModel):
+    expires_seconds: int = Field(default=300, ge=30, le=3600)
diff --git a/common/.gitignore b/common/.gitignore
new file mode 100644
index 0000000..505a3b1
--- /dev/null
+++ b/common/.gitignore
@@ -0,0 +1,10 @@
+# Python-generated files
+__pycache__/
+*.py[oc]
+build/
+dist/
+wheels/
+*.egg-info
+
+# Virtual environments
+.venv
diff --git a/common/.python-version b/common/.python-version
new file mode 100644
index 0000000..e4fba21
--- /dev/null
+++ b/common/.python-version
@@ -0,0 +1 @@
+3.12
diff --git a/common/README.md b/common/README.md
new file mode 100644
index 0000000..261a432
--- /dev/null
+++ b/common/README.md
@@ -0,0 +1,5 @@
+# Common
+
+后端公共配置、标识、错误模型、日志和基础工具目录。
+
+业务模块不得在本目录外重复定义公共 DTO 或错误码。
diff --git a/common/alembic.ini b/common/alembic.ini
new file mode 100644
index 0000000..52820cc
--- /dev/null
+++ b/common/alembic.ini
@@ -0,0 +1,149 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts.
+# this is typically a path given in POSIX (e.g. forward slashes)
+# format, relative to the token %(here)s which refers to the location of this
+# ini file
+script_location = %(here)s/src/common/migrations
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+# Or organize into date-based subdirectories (requires recursive_version_locations = true)
+# file_template = %%(year)d/%%(month).2d/%%(day).2d_%%(hour).2d%%(minute).2d_%%(second).2d_%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.  for multiple paths, the path separator
+# is defined by "path_separator" below.
+prepend_sys_path = .
+
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the tzdata library which can be installed by adding
+# `alembic[tz]` to the pip requirements.
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to <script_location>/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "path_separator"
+# below.
+# version_locations = %(here)s/bar:%(here)s/bat:%(here)s/alembic/versions
+
+# path_separator; This indicates what character is used to split lists of file
+# paths, including version_locations and prepend_sys_path within configparser
+# files such as alembic.ini.
+# The default rendered in new alembic.ini files is "os", which uses os.pathsep
+# to provide os-dependent path splitting.
+#
+# Note that in order to support legacy alembic.ini files, this default does NOT
+# take place if path_separator is not present in alembic.ini.  If this
+# option is omitted entirely, fallback logic is as follows:
+#
+# 1. Parsing of the version_locations option falls back to using the legacy
+#    "version_path_separator" key, which if absent then falls back to the legacy
+#    behavior of splitting on spaces and/or commas.
+# 2. Parsing of the prepend_sys_path option falls back to the legacy
+#    behavior of splitting on spaces, commas, or colons.
+#
+# Valid values for path_separator are:
+#
+# path_separator = :
+# path_separator = ;
+# path_separator = space
+# path_separator = newline
+#
+# Use os.pathsep. Default configuration used for new projects.
+path_separator = os
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# database URL.  This is consumed by the user-maintained env.py script only.
+# other means of configuring database URLs may be customized within the env.py
+# file.
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the module runner, against the "ruff" module
+# hooks = ruff
+# ruff.type = module
+# ruff.module = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Alternatively, use the exec runner to execute a binary found on your PATH
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration.  This is also consumed by the user-maintained
+# env.py script only.
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/common/pyproject.toml b/common/pyproject.toml
new file mode 100644
index 0000000..a79133e
--- /dev/null
+++ b/common/pyproject.toml
@@ -0,0 +1,17 @@
+[project]
+name = "common"
+version = "0.2.0"
+requires-python = ">=3.12"
+dependencies = [
+    "SQLAlchemy==2.0.51",
+    "asyncmy==0.2.11",
+    "boto3>=1.34,<2",
+    "fastapi==0.116.1",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/common"]
diff --git a/common/src/common/__init__.py b/common/src/common/__init__.py
new file mode 100644
index 0000000..ab78a93
--- /dev/null
+++ b/common/src/common/__init__.py
@@ -0,0 +1 @@
+"""Shared backend building blocks."""
diff --git a/common/src/common/db/__init__.py b/common/src/common/db/__init__.py
new file mode 100644
index 0000000..10b0d03
--- /dev/null
+++ b/common/src/common/db/__init__.py
@@ -0,0 +1,17 @@
+"""Shared SQLAlchemy database models and infrastructure."""
+
+from common.db.models import Base
+from common.db.session import (
+    AsyncSessionFactory,
+    create_database_engine,
+    create_session_factory,
+    session_scope,
+)
+
+__all__ = [
+    "AsyncSessionFactory",
+    "Base",
+    "create_database_engine",
+    "create_session_factory",
+    "session_scope",
+]
diff --git a/common/src/common/db/base.py b/common/src/common/db/base.py
new file mode 100644
index 0000000..3f203ac
--- /dev/null
+++ b/common/src/common/db/base.py
@@ -0,0 +1,14 @@
+# coding=utf-8
+"""
+@Time   :2026/7/29
+@Author :tao.chen 
+"""
+from sqlalchemy.orm import DeclarativeBase
+
+class Base(DeclarativeBase):
+    pass
+
+# 导入所有实体模型，确保 Base.metadata 能收集到所有表
+# from common.db.models.notebook import NotebookModel
+# from common.db.models.workspace import WorkspaceModel
+# from common.db.models.job import JobRunModel
\ No newline at end of file
diff --git a/common/src/common/db/models.py b/common/src/common/db/models.py
new file mode 100644
index 0000000..f3aa8af
--- /dev/null
+++ b/common/src/common/db/models.py
@@ -0,0 +1,878 @@
+from typing import Optional
+import datetime
+import decimal
+
+from sqlalchemy import BINARY, BigInteger, CHAR, DECIMAL, Double, ForeignKeyConstraint, Index, Integer, JSON, String, Text, text
+from sqlalchemy.dialects.mysql import BIGINT, DATETIME, INTEGER, SMALLINT, TINYINT
+from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column, relationship
+
+class Base(DeclarativeBase):
+    pass
+
+
+class ConsumerInbox(Base):
+    __tablename__ = 'consumer_inbox'
+    __table_args__ = (
+        Index('idx_consumer_inbox_status', 'consumer_name', 'process_status', 'created_at'),
+        {'comment': '消费者幂等 Inbox，防止数据库事件重复处理'}
+    )
+
+    consumer_name: Mapped[str] = mapped_column(String(128), primary_key=True)
+    event_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    process_status: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'processing'"), comment='processing/succeeded/failed')
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    message_id: Mapped[Optional[str]] = mapped_column(String(128), comment='数据库事件处理批次标识')
+    processed_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    error_message: Mapped[Optional[str]] = mapped_column(String(2000))
+
+
+class OutboxEvents(Base):
+    __tablename__ = 'outbox_events'
+    __table_args__ = (
+        Index('idx_outbox_aggregate', 'aggregate_type', 'aggregate_id', 'created_at'),
+        Index('idx_outbox_idempotency', 'idempotency_key'),
+        Index('idx_outbox_pending', 'event_status', 'available_at', 'created_at'),
+        {'comment': '事务 Outbox；由 Schedule Executor 直接轮询处理'}
+    )
+
+    event_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    aggregate_type: Mapped[str] = mapped_column(String(64), nullable=False)
+    aggregate_id: Mapped[str] = mapped_column(String(128), nullable=False)
+    event_type: Mapped[str] = mapped_column(String(128), nullable=False)
+    schema_version: Mapped[int] = mapped_column(SMALLINT, nullable=False, server_default=text("1"))
+    payload_json: Mapped[dict] = mapped_column(JSON, nullable=False)
+    event_status: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'pending'"), comment='pending/published/failed')
+    available_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    retry_count: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("0"))
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    trace_id: Mapped[Optional[str]] = mapped_column(String(64))
+    idempotency_key: Mapped[Optional[str]] = mapped_column(String(128))
+    published_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    last_error: Mapped[Optional[str]] = mapped_column(String(2000))
+
+
+class Permissions(Base):
+    __tablename__ = 'permissions'
+    __table_args__ = (
+        Index('idx_permissions_module', 'module_code'),
+        Index('uk_permissions_code', 'permission_code', unique=True),
+        {'comment': '权限点'}
+    )
+
+    permission_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    permission_code: Mapped[str] = mapped_column(String(128), nullable=False)
+    permission_name: Mapped[str] = mapped_column(String(100), nullable=False)
+    module_code: Mapped[str] = mapped_column(String(64), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    description: Mapped[Optional[str]] = mapped_column(String(500))
+
+    role_permissions: Mapped[list['RolePermissions']] = relationship('RolePermissions', back_populates='permission')
+
+
+class Roles(Base):
+    __tablename__ = 'roles'
+    __table_args__ = (
+        Index('uk_roles_code', 'role_code', unique=True),
+        {'comment': '角色'}
+    )
+
+    role_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    role_code: Mapped[str] = mapped_column(String(64), nullable=False)
+    role_name: Mapped[str] = mapped_column(String(100), nullable=False)
+    role_scope: Mapped[str] = mapped_column(String(16), nullable=False, comment='platform/workspace')
+    is_builtin: Mapped[int] = mapped_column(TINYINT(1), nullable=False, server_default=text("0"))
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    description: Mapped[Optional[str]] = mapped_column(String(500))
+
+    role_permissions: Mapped[list['RolePermissions']] = relationship('RolePermissions', back_populates='role')
+    users: Mapped[list['Users']] = relationship('Users', back_populates='platform_role')
+    workspace_members: Mapped[list['WorkspaceMembers']] = relationship('WorkspaceMembers', back_populates='role')
+
+
+class RolePermissions(Base):
+    __tablename__ = 'role_permissions'
+    __table_args__ = (
+        ForeignKeyConstraint(['permission_id'], ['permissions.permission_id'], ondelete='CASCADE', name='fk_role_permissions_permission'),
+        ForeignKeyConstraint(['role_id'], ['roles.role_id'], ondelete='CASCADE', name='fk_role_permissions_role'),
+        Index('fk_role_permissions_permission', 'permission_id'),
+        {'comment': '角色权限'}
+    )
+
+    role_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    permission_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+
+    permission: Mapped['Permissions'] = relationship('Permissions', back_populates='role_permissions')
+    role: Mapped['Roles'] = relationship('Roles', back_populates='role_permissions')
+
+
+class Users(Base):
+    __tablename__ = 'users'
+    __table_args__ = (
+        ForeignKeyConstraint(['platform_role_id'], ['roles.role_id'], ondelete='SET NULL', name='fk_users_platform_role'),
+        Index('fk_users_platform_role', 'platform_role_id'),
+        Index('idx_users_status', 'status'),
+        Index('uk_users_email', 'email', unique=True),
+        Index('uk_users_username', 'username', unique=True),
+        {'comment': '平台用户'}
+    )
+
+    user_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    username: Mapped[str] = mapped_column(String(64), nullable=False)
+    display_name: Mapped[str] = mapped_column(String(100), nullable=False)
+    password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
+    status: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'active'"), comment='active/disabled/locked')
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    email: Mapped[Optional[str]] = mapped_column(String(255))
+    platform_role_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    avatar_uri: Mapped[Optional[str]] = mapped_column(String(1000))
+    last_login_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    deleted_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+
+    platform_role: Mapped[Optional['Roles']] = relationship('Roles', back_populates='users')
+    workspaces: Mapped[list['Workspaces']] = relationship('Workspaces', back_populates='users')
+    audit_logs: Mapped[list['AuditLogs']] = relationship('AuditLogs', back_populates='actor_user')
+    runtime_instances: Mapped[list['RuntimeInstances']] = relationship('RuntimeInstances', foreign_keys='[RuntimeInstances.owner_user_id]', back_populates='owner_user')
+    runtime_instances_: Mapped[list['RuntimeInstances']] = relationship('RuntimeInstances', foreign_keys='[RuntimeInstances.started_by]', back_populates='users')
+    schedules: Mapped[list['Schedules']] = relationship('Schedules', foreign_keys='[Schedules.created_by]', back_populates='users')
+    schedules_: Mapped[list['Schedules']] = relationship('Schedules', foreign_keys='[Schedules.updated_by]', back_populates='users_')
+    storage_objects: Mapped[list['StorageObjects']] = relationship('StorageObjects', foreign_keys='[StorageObjects.created_by]', back_populates='users')
+    storage_objects_: Mapped[list['StorageObjects']] = relationship('StorageObjects', foreign_keys='[StorageObjects.owner_user_id]', back_populates='owner_user')
+    workspace_members: Mapped[list['WorkspaceMembers']] = relationship('WorkspaceMembers', back_populates='user')
+    data_resources: Mapped[list['DataResources']] = relationship('DataResources', back_populates='owner_user')
+    edit_sessions: Mapped[list['EditSessions']] = relationship('EditSessions', back_populates='user')
+    schedule_runs: Mapped[list['ScheduleRuns']] = relationship('ScheduleRuns', back_populates='users')
+    scripts: Mapped[list['Scripts']] = relationship('Scripts', back_populates='owner_user')
+    upload_sessions: Mapped[list['UploadSessions']] = relationship('UploadSessions', back_populates='user')
+    workspace_operations: Mapped[list['WorkspaceOperations']] = relationship('WorkspaceOperations', back_populates='users')
+    notebook_snapshots: Mapped[list['NotebookSnapshots']] = relationship('NotebookSnapshots', back_populates='users')
+    versions: Mapped[list['Versions']] = relationship('Versions', back_populates='users')
+    experiments: Mapped[list['Experiments']] = relationship('Experiments', back_populates='owner_user')
+
+
+class Workspaces(Base):
+    __tablename__ = 'workspaces'
+    __table_args__ = (
+        ForeignKeyConstraint(['created_by'], ['users.user_id'], ondelete='RESTRICT', name='fk_workspaces_created_by'),
+        Index('fk_workspaces_created_by', 'created_by'),
+        Index('idx_workspaces_status', 'status'),
+        Index('uk_workspaces_code', 'workspace_code', unique=True),
+        {'comment': 'Workspace'}
+    )
+
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_code: Mapped[str] = mapped_column(String(64), nullable=False)
+    workspace_name: Mapped[str] = mapped_column(String(150), nullable=False)
+    active_root_uri: Mapped[str] = mapped_column(String(1500), nullable=False, comment='活动工作区，建议 NFS/PVC/file URI')
+    quota_bytes: Mapped[int] = mapped_column(BIGINT, nullable=False, server_default=text("0"), comment='0 表示不限额')
+    used_bytes: Mapped[int] = mapped_column(BIGINT, nullable=False, server_default=text("0"))
+    status: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'active'"), comment='creating/active/suspended/deleting/deleted')
+    created_by: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    description: Mapped[Optional[str]] = mapped_column(String(1000))
+    artifact_bucket: Mapped[Optional[str]] = mapped_column(String(128), comment='RustFS bucket')
+    artifact_prefix: Mapped[Optional[str]] = mapped_column(String(512), comment='RustFS object key prefix')
+    deleted_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+
+    users: Mapped['Users'] = relationship('Users', back_populates='workspaces')
+    audit_logs: Mapped[list['AuditLogs']] = relationship('AuditLogs', back_populates='workspace')
+    runtime_instances: Mapped[list['RuntimeInstances']] = relationship('RuntimeInstances', back_populates='workspace')
+    schedules: Mapped[list['Schedules']] = relationship('Schedules', back_populates='workspace')
+    storage_objects: Mapped[list['StorageObjects']] = relationship('StorageObjects', back_populates='workspace')
+    workspace_members: Mapped[list['WorkspaceMembers']] = relationship('WorkspaceMembers', back_populates='workspace')
+    data_resources: Mapped[list['DataResources']] = relationship('DataResources', back_populates='workspace')
+    edit_sessions: Mapped[list['EditSessions']] = relationship('EditSessions', back_populates='workspace')
+    schedule_runs: Mapped[list['ScheduleRuns']] = relationship('ScheduleRuns', back_populates='workspace')
+    scripts: Mapped[list['Scripts']] = relationship('Scripts', back_populates='workspace')
+    upload_sessions: Mapped[list['UploadSessions']] = relationship('UploadSessions', back_populates='workspace')
+    workspace_operations: Mapped[list['WorkspaceOperations']] = relationship('WorkspaceOperations', back_populates='workspace')
+    notebook_snapshots: Mapped[list['NotebookSnapshots']] = relationship('NotebookSnapshots', back_populates='workspace')
+    versions: Mapped[list['Versions']] = relationship('Versions', back_populates='workspace')
+    experiments: Mapped[list['Experiments']] = relationship('Experiments', back_populates='workspace')
+
+
+class AuditLogs(Base):
+    __tablename__ = 'audit_logs'
+    __table_args__ = (
+        ForeignKeyConstraint(['actor_user_id'], ['users.user_id'], ondelete='SET NULL', name='fk_audit_actor'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='SET NULL', name='fk_audit_workspace'),
+        Index('idx_audit_action_time', 'action_code', 'created_at'),
+        Index('idx_audit_actor_time', 'actor_user_id', 'created_at'),
+        Index('idx_audit_workspace_time', 'workspace_id', 'created_at'),
+        {'comment': '操作审计日志'}
+    )
+
+    audit_id: Mapped[int] = mapped_column(BIGINT, primary_key=True)
+    action_code: Mapped[str] = mapped_column(String(128), nullable=False)
+    target_type: Mapped[str] = mapped_column(String(64), nullable=False)
+    operation_status: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'success'"))
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    workspace_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    actor_user_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    target_id: Mapped[Optional[str]] = mapped_column(String(128))
+    client_ip: Mapped[Optional[str]] = mapped_column(String(45))
+    user_agent: Mapped[Optional[str]] = mapped_column(String(1000))
+    detail_json: Mapped[Optional[dict]] = mapped_column(JSON)
+
+    actor_user: Mapped[Optional['Users']] = relationship('Users', back_populates='audit_logs')
+    workspace: Mapped[Optional['Workspaces']] = relationship('Workspaces', back_populates='audit_logs')
+
+
+class RuntimeInstances(Base):
+    __tablename__ = 'runtime_instances'
+    __table_args__ = (
+        ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], ondelete='SET NULL', name='fk_runtime_owner'),
+        ForeignKeyConstraint(['started_by'], ['users.user_id'], ondelete='RESTRICT', name='fk_runtime_started_by'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_runtime_workspace'),
+        Index('fk_runtime_started_by', 'started_by'),
+        Index('idx_runtime_lease', 'actual_state', 'lease_expires_at'),
+        Index('idx_runtime_owner_state', 'owner_user_id', 'actual_state'),
+        Index('idx_runtime_workspace_state', 'workspace_id', 'runtime_type', 'actual_state'),
+        {'comment': 'Jupyter/未来 VS Code、OpenCode Runtime 实例'}
+    )
+
+    runtime_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    runtime_type: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'jupyter'"))
+    runtime_provider: Mapped[str] = mapped_column(String(24), nullable=False, comment='process/docker/kubernetes')
+    proxy_base_path: Mapped[str] = mapped_column(String(512), nullable=False)
+    desired_state: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'running'"))
+    actual_state: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'provisioning'"), comment='provisioning/starting/running/unhealthy/stopping/stopped/failed')
+    state_version: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("0"), comment='乐观锁版本')
+    started_by: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    owner_user_id: Mapped[Optional[str]] = mapped_column(CHAR(26), comment='为空表示 Workspace 级 Runtime')
+    runtime_ref: Mapped[Optional[str]] = mapped_column(String(255), comment='PID/container ID/pod UID')
+    host_node: Mapped[Optional[str]] = mapped_column(String(255))
+    internal_url: Mapped[Optional[str]] = mapped_column(String(1000))
+    started_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    last_heartbeat_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    lease_expires_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    stopped_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    error_message: Mapped[Optional[str]] = mapped_column(Text)
+
+    owner_user: Mapped[Optional['Users']] = relationship('Users', foreign_keys=[owner_user_id], back_populates='runtime_instances')
+    users: Mapped['Users'] = relationship('Users', foreign_keys=[started_by], back_populates='runtime_instances_')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='runtime_instances')
+    edit_sessions: Mapped[list['EditSessions']] = relationship('EditSessions', back_populates='runtime')
+    workspace_operations: Mapped[list['WorkspaceOperations']] = relationship('WorkspaceOperations', back_populates='runtime')
+
+
+class Schedules(Base):
+    __tablename__ = 'schedules'
+    __table_args__ = (
+        ForeignKeyConstraint(['created_by'], ['users.user_id'], ondelete='RESTRICT', name='fk_schedules_created_by'),
+        ForeignKeyConstraint(['updated_by'], ['users.user_id'], ondelete='RESTRICT', name='fk_schedules_updated_by'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_schedules_workspace'),
+        Index('fk_schedules_created_by', 'created_by'),
+        Index('fk_schedules_updated_by', 'updated_by'),
+        Index('idx_schedules_due', 'enabled', 'next_run_at'),
+        Index('idx_schedules_workspace', 'workspace_id', 'enabled', 'updated_at'),
+        {'comment': '调度方案'}
+    )
+
+    schedule_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    schedule_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    trigger_type: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'cron'"), comment='manual/cron/api')
+    timezone: Mapped[str] = mapped_column(String(64), nullable=False, server_default=text("'Asia/Shanghai'"))
+    enabled: Mapped[int] = mapped_column(TINYINT(1), nullable=False, server_default=text("0"))
+    workflow_version: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("1"))
+    max_concurrency: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("1"))
+    failure_policy: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'stop'"), comment='stop/continue')
+    created_by: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    updated_by: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    description: Mapped[Optional[str]] = mapped_column(String(1000))
+    cron_expression: Mapped[Optional[str]] = mapped_column(String(128))
+    last_run_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    next_run_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    deleted_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+
+    users: Mapped['Users'] = relationship('Users', foreign_keys=[created_by], back_populates='schedules')
+    users_: Mapped['Users'] = relationship('Users', foreign_keys=[updated_by], back_populates='schedules_')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='schedules')
+    schedule_runs: Mapped[list['ScheduleRuns']] = relationship('ScheduleRuns', back_populates='schedule')
+    schedule_nodes: Mapped[list['ScheduleNodes']] = relationship('ScheduleNodes', back_populates='schedule')
+    schedule_edges: Mapped[list['ScheduleEdges']] = relationship('ScheduleEdges', back_populates='schedule')
+
+
+class StorageObjects(Base):
+    __tablename__ = 'storage_objects'
+    __table_args__ = (
+        ForeignKeyConstraint(['created_by'], ['users.user_id'], ondelete='RESTRICT', name='fk_storage_created_by'),
+        ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], ondelete='SET NULL', name='fk_storage_owner'),
+        ForeignKeyConstraint(['parent_object_id'], ['storage_objects.storage_object_id'], ondelete='SET NULL', name='fk_storage_parent'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_storage_workspace'),
+        Index('fk_storage_created_by', 'created_by'),
+        Index('idx_storage_content_hash', 'content_hash'),
+        Index('idx_storage_owner', 'owner_user_id', 'object_status'),
+        Index('idx_storage_parent', 'parent_object_id'),
+        Index('idx_storage_workspace_usage', 'workspace_id', 'usage_type', 'object_status'),
+        Index('uk_storage_bucket_key', 'storage_backend', 'bucket_name', 'object_key_hash', unique=True),
+        Index('uk_storage_workspace_path', 'workspace_id', 'storage_backend', 'path_hash', unique=True),
+        {'comment': 'Workspace 文件和 RustFS 对象的统一元数据'}
+    )
+
+    storage_object_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    object_type: Mapped[str] = mapped_column(String(16), nullable=False, comment='file/directory')
+    usage_type: Mapped[str] = mapped_column(String(32), nullable=False, comment='working_copy/public_script/data_resource/version_artifact/snapshot/run_log/run_result')
+    storage_backend: Mapped[str] = mapped_column(String(16), nullable=False, comment='workspace_fs/rustfs')
+    storage_uri: Mapped[str] = mapped_column(String(1500), nullable=False)
+    file_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    size_bytes: Mapped[int] = mapped_column(BIGINT, nullable=False, server_default=text("0"))
+    visibility: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'private'"), comment='private/workspace/public')
+    is_immutable: Mapped[int] = mapped_column(TINYINT(1), nullable=False, server_default=text("0"))
+    object_status: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'available'"), comment='uploading/available/deleting/deleted/failed')
+    created_by: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    owner_user_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    parent_object_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    relative_path: Mapped[Optional[str]] = mapped_column(String(1024), comment='Workspace 相对路径')
+    path_hash: Mapped[Optional[bytes]] = mapped_column(BINARY(32), comment='SHA-256(relative_path)，由应用写入')
+    bucket_name: Mapped[Optional[str]] = mapped_column(String(128))
+    object_key: Mapped[Optional[str]] = mapped_column(String(1024))
+    object_key_hash: Mapped[Optional[bytes]] = mapped_column(BINARY(32), comment='SHA-256(object_key)，由应用写入')
+    file_extension: Mapped[Optional[str]] = mapped_column(String(32))
+    mime_type: Mapped[Optional[str]] = mapped_column(String(255))
+    content_hash: Mapped[Optional[str]] = mapped_column(CHAR(64), comment='SHA-256 hex')
+    object_etag: Mapped[Optional[str]] = mapped_column(String(255))
+    deleted_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+
+    users: Mapped['Users'] = relationship('Users', foreign_keys=[created_by], back_populates='storage_objects')
+    owner_user: Mapped[Optional['Users']] = relationship('Users', foreign_keys=[owner_user_id], back_populates='storage_objects_')
+    parent_object: Mapped[Optional['StorageObjects']] = relationship('StorageObjects', remote_side=[storage_object_id], back_populates='parent_object_reverse')
+    parent_object_reverse: Mapped[list['StorageObjects']] = relationship('StorageObjects', remote_side=[parent_object_id], back_populates='parent_object')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='storage_objects')
+    data_resources: Mapped[list['DataResources']] = relationship('DataResources', back_populates='storage_object')
+    edit_sessions: Mapped[list['EditSessions']] = relationship('EditSessions', back_populates='storage_object')
+    schedule_runs: Mapped[list['ScheduleRuns']] = relationship('ScheduleRuns', foreign_keys='[ScheduleRuns.logs_object_id]', back_populates='logs_object')
+    schedule_runs_: Mapped[list['ScheduleRuns']] = relationship('ScheduleRuns', foreign_keys='[ScheduleRuns.result_object_id]', back_populates='result_object')
+    scripts: Mapped[list['Scripts']] = relationship('Scripts', back_populates='current_object')
+    upload_sessions: Mapped[list['UploadSessions']] = relationship('UploadSessions', back_populates='storage_object')
+    notebook_snapshots: Mapped[list['NotebookSnapshots']] = relationship('NotebookSnapshots', foreign_keys='[NotebookSnapshots.artifact_object_id]', back_populates='artifact_object')
+    notebook_snapshots_: Mapped[list['NotebookSnapshots']] = relationship('NotebookSnapshots', foreign_keys='[NotebookSnapshots.source_object_id]', back_populates='source_object')
+    versions: Mapped[list['Versions']] = relationship('Versions', foreign_keys='[Versions.artifact_object_id]', back_populates='artifact_object')
+    versions_: Mapped[list['Versions']] = relationship('Versions', foreign_keys='[Versions.source_object_id]', back_populates='source_object')
+    experiments: Mapped[list['Experiments']] = relationship('Experiments', foreign_keys='[Experiments.logs_object_id]', back_populates='logs_object')
+    experiments_: Mapped[list['Experiments']] = relationship('Experiments', foreign_keys='[Experiments.result_object_id]', back_populates='result_object')
+    schedule_node_runs: Mapped[list['ScheduleNodeRuns']] = relationship('ScheduleNodeRuns', foreign_keys='[ScheduleNodeRuns.logs_object_id]', back_populates='logs_object')
+    schedule_node_runs_: Mapped[list['ScheduleNodeRuns']] = relationship('ScheduleNodeRuns', foreign_keys='[ScheduleNodeRuns.result_object_id]', back_populates='result_object')
+
+
+class WorkspaceMembers(Base):
+    __tablename__ = 'workspace_members'
+    __table_args__ = (
+        ForeignKeyConstraint(['role_id'], ['roles.role_id'], ondelete='RESTRICT', name='fk_workspace_members_role'),
+        ForeignKeyConstraint(['user_id'], ['users.user_id'], ondelete='RESTRICT', name='fk_workspace_members_user'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='CASCADE', name='fk_workspace_members_workspace'),
+        Index('idx_workspace_members_role', 'role_id'),
+        Index('idx_workspace_members_user', 'user_id', 'member_status'),
+        {'comment': 'Workspace 成员与角色'}
+    )
+
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    user_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    role_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    member_status: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'active'"))
+    joined_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+
+    role: Mapped['Roles'] = relationship('Roles', back_populates='workspace_members')
+    user: Mapped['Users'] = relationship('Users', back_populates='workspace_members')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='workspace_members')
+
+
+class DataResources(Base):
+    __tablename__ = 'data_resources'
+    __table_args__ = (
+        ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], ondelete='RESTRICT', name='fk_data_resources_owner'),
+        ForeignKeyConstraint(['storage_object_id'], ['storage_objects.storage_object_id'], ondelete='RESTRICT', name='fk_data_resources_object'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_data_resources_workspace'),
+        Index('idx_data_resources_owner', 'owner_user_id', 'status'),
+        Index('idx_data_resources_workspace', 'workspace_id', 'visibility', 'status'),
+        Index('uk_data_resources_object', 'storage_object_id', unique=True),
+        {'comment': '数据资源'}
+    )
+
+    resource_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    storage_object_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    owner_user_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    resource_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    visibility: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'private'"))
+    status: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'active'"))
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    description: Mapped[Optional[str]] = mapped_column(String(1000))
+    schema_json: Mapped[Optional[dict]] = mapped_column(JSON, comment='字段结构、行数等可选元数据')
+    deleted_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+
+    owner_user: Mapped['Users'] = relationship('Users', back_populates='data_resources')
+    storage_object: Mapped['StorageObjects'] = relationship('StorageObjects', back_populates='data_resources')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='data_resources')
+    experiment_resources: Mapped[list['ExperimentResources']] = relationship('ExperimentResources', back_populates='resource')
+
+
+class EditSessions(Base):
+    __tablename__ = 'edit_sessions'
+    __table_args__ = (
+        ForeignKeyConstraint(['runtime_id'], ['runtime_instances.runtime_id'], ondelete='SET NULL', name='fk_edit_sessions_runtime'),
+        ForeignKeyConstraint(['storage_object_id'], ['storage_objects.storage_object_id'], ondelete='RESTRICT', name='fk_edit_sessions_object'),
+        ForeignKeyConstraint(['user_id'], ['users.user_id'], ondelete='RESTRICT', name='fk_edit_sessions_user'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_edit_sessions_workspace'),
+        Index('fk_edit_sessions_workspace', 'workspace_id'),
+        Index('idx_edit_sessions_object', 'storage_object_id', 'session_status', 'expires_at'),
+        Index('idx_edit_sessions_runtime', 'runtime_id', 'session_status'),
+        Index('idx_edit_sessions_user', 'user_id', 'session_status'),
+        {'comment': '编辑会话与数据库租约；MySQL 为锁状态权威'}
+    )
+
+    edit_session_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    storage_object_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    user_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    lock_key: Mapped[str] = mapped_column(String(512), nullable=False)
+    lock_token_hash: Mapped[bytes] = mapped_column(BINARY(32), nullable=False, comment='不保存原始 token')
+    session_status: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'active'"), comment='active/closed/expired/failed')
+    started_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    last_heartbeat_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    expires_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False)
+    runtime_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    jupyter_session_id: Mapped[Optional[str]] = mapped_column(String(255))
+    ended_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    end_reason: Mapped[Optional[str]] = mapped_column(String(64))
+
+    runtime: Mapped[Optional['RuntimeInstances']] = relationship('RuntimeInstances', back_populates='edit_sessions')
+    storage_object: Mapped['StorageObjects'] = relationship('StorageObjects', back_populates='edit_sessions')
+    user: Mapped['Users'] = relationship('Users', back_populates='edit_sessions')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='edit_sessions')
+
+
+class ScheduleRuns(Base):
+    __tablename__ = 'schedule_runs'
+    __table_args__ = (
+        ForeignKeyConstraint(['logs_object_id'], ['storage_objects.storage_object_id'], ondelete='SET NULL', name='fk_schedule_runs_logs'),
+        ForeignKeyConstraint(['result_object_id'], ['storage_objects.storage_object_id'], ondelete='SET NULL', name='fk_schedule_runs_result'),
+        ForeignKeyConstraint(['schedule_id'], ['schedules.schedule_id'], ondelete='RESTRICT', name='fk_schedule_runs_schedule'),
+        ForeignKeyConstraint(['triggered_by'], ['users.user_id'], ondelete='SET NULL', name='fk_schedule_runs_user'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_schedule_runs_workspace'),
+        Index('fk_schedule_runs_logs', 'logs_object_id'),
+        Index('fk_schedule_runs_result', 'result_object_id'),
+        Index('fk_schedule_runs_user', 'triggered_by'),
+        Index('idx_schedule_runs_schedule', 'schedule_id', 'created_at'),
+        Index('idx_schedule_runs_status', 'run_status', 'queued_at'),
+        Index('idx_schedule_runs_workspace_status', 'workspace_id', 'run_status', 'queued_at'),
+        Index('uk_schedule_runs_idempotency', 'idempotency_key', unique=True),
+        {'comment': '调度运行'}
+    )
+
+    run_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    schedule_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    workflow_version: Mapped[int] = mapped_column(INTEGER, nullable=False)
+    trigger_type: Mapped[str] = mapped_column(String(16), nullable=False, comment='manual/cron/api/retry')
+    idempotency_key: Mapped[str] = mapped_column(String(128), nullable=False)
+    run_status: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'queued'"), comment='queued/running/succeeded/failed/cancelled/timed_out')
+    state_version: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("0"), comment='乐观锁版本')
+    schedule_snapshot: Mapped[dict] = mapped_column(JSON, nullable=False, comment='执行时 DAG 快照')
+    queued_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    triggered_by: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    started_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    finished_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    duration_ms: Mapped[Optional[int]] = mapped_column(BIGINT)
+    error_code: Mapped[Optional[str]] = mapped_column(String(64))
+    error_message: Mapped[Optional[str]] = mapped_column(Text)
+    logs_object_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    result_object_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+
+    logs_object: Mapped[Optional['StorageObjects']] = relationship('StorageObjects', foreign_keys=[logs_object_id], back_populates='schedule_runs')
+    result_object: Mapped[Optional['StorageObjects']] = relationship('StorageObjects', foreign_keys=[result_object_id], back_populates='schedule_runs_')
+    schedule: Mapped['Schedules'] = relationship('Schedules', back_populates='schedule_runs')
+    users: Mapped[Optional['Users']] = relationship('Users', back_populates='schedule_runs')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='schedule_runs')
+    experiments: Mapped[list['Experiments']] = relationship('Experiments', back_populates='schedule_run')
+    schedule_node_runs: Mapped[list['ScheduleNodeRuns']] = relationship('ScheduleNodeRuns', back_populates='run')
+
+
+class Scripts(Base):
+    __tablename__ = 'scripts'
+    __table_args__ = (
+        ForeignKeyConstraint(['current_object_id'], ['storage_objects.storage_object_id'], ondelete='RESTRICT', name='fk_scripts_current_object'),
+        ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], ondelete='RESTRICT', name='fk_scripts_owner'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_scripts_workspace'),
+        Index('idx_scripts_owner', 'owner_user_id', 'status'),
+        Index('idx_scripts_workspace', 'workspace_id', 'script_type', 'visibility', 'status'),
+        Index('uk_scripts_current_object', 'current_object_id', unique=True),
+        {'comment': '可执行 Python/Notebook 脚本'}
+    )
+
+    script_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    current_object_id: Mapped[str] = mapped_column(CHAR(26), nullable=False, comment='当前工作副本')
+    owner_user_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    script_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    script_type: Mapped[str] = mapped_column(String(16), nullable=False, comment='python/notebook')
+    visibility: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'private'"))
+    status: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'active'"))
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    deleted_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+
+    current_object: Mapped['StorageObjects'] = relationship('StorageObjects', back_populates='scripts')
+    owner_user: Mapped['Users'] = relationship('Users', back_populates='scripts')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='scripts')
+    notebook_snapshots: Mapped[list['NotebookSnapshots']] = relationship('NotebookSnapshots', back_populates='script')
+    versions: Mapped[list['Versions']] = relationship('Versions', back_populates='script')
+    experiments: Mapped[list['Experiments']] = relationship('Experiments', back_populates='script')
+
+
+class UploadSessions(Base):
+    __tablename__ = 'upload_sessions'
+    __table_args__ = (
+        ForeignKeyConstraint(['storage_object_id'], ['storage_objects.storage_object_id'], ondelete='SET NULL', name='fk_upload_sessions_storage_object'),
+        ForeignKeyConstraint(['user_id'], ['users.user_id'], ondelete='RESTRICT', name='fk_upload_sessions_user'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_upload_sessions_workspace'),
+        Index('fk_upload_sessions_storage_object', 'storage_object_id'),
+        Index('fk_upload_sessions_user', 'user_id'),
+        Index('idx_upload_sessions_expiry', 'upload_status', 'expires_at'),
+        Index('idx_upload_sessions_object_key', 'bucket_name', 'object_key_hash'),
+        Index('idx_upload_sessions_workspace', 'workspace_id', 'user_id', 'created_at'),
+        Index('uk_upload_sessions_idempotency', 'idempotency_key', unique=True),
+        {'comment': 'RustFS 预签名上传会话；URL 本身不持久化'}
+    )
+
+    upload_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    user_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    idempotency_key: Mapped[str] = mapped_column(String(128), nullable=False)
+    bucket_name: Mapped[str] = mapped_column(String(128), nullable=False)
+    object_key: Mapped[str] = mapped_column(String(1024), nullable=False)
+    object_key_hash: Mapped[bytes] = mapped_column(BINARY(32), nullable=False)
+    upload_status: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'created'"), comment='created/uploading/completed/expired/aborted/failed')
+    expires_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    multipart_upload_id: Mapped[Optional[str]] = mapped_column(String(255))
+    expected_size_bytes: Mapped[Optional[int]] = mapped_column(BIGINT)
+    expected_hash: Mapped[Optional[str]] = mapped_column(CHAR(64))
+    content_type: Mapped[Optional[str]] = mapped_column(String(255))
+    storage_object_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    completed_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+
+    storage_object: Mapped[Optional['StorageObjects']] = relationship('StorageObjects', back_populates='upload_sessions')
+    user: Mapped['Users'] = relationship('Users', back_populates='upload_sessions')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='upload_sessions')
+
+
+class WorkspaceOperations(Base):
+    __tablename__ = 'workspace_operations'
+    __table_args__ = (
+        ForeignKeyConstraint(['requested_by'], ['users.user_id'], ondelete='RESTRICT', name='fk_workspace_operations_user'),
+        ForeignKeyConstraint(['runtime_id'], ['runtime_instances.runtime_id'], ondelete='SET NULL', name='fk_workspace_operations_runtime'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_workspace_operations_workspace'),
+        Index('fk_workspace_operations_user', 'requested_by'),
+        Index('idx_workspace_operations_runtime', 'runtime_id', 'created_at'),
+        Index('idx_workspace_operations_workspace', 'workspace_id', 'operation_status', 'created_at'),
+        Index('uk_workspace_operations_request', 'request_id', unique=True),
+        {'comment': '无状态 Backend 的 Workspace/Jupyter 异步操作记录'}
+    )
+
+    operation_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    operation_type: Mapped[str] = mapped_column(String(24), nullable=False, comment='open/close/mount/unmount/start/stop/restart/recycle')
+    operation_status: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'pending'"), comment='pending/running/succeeded/failed/cancelled')
+    state_version: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("0"), comment='乐观锁版本')
+    requested_by: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    runtime_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    request_id: Mapped[Optional[str]] = mapped_column(String(128))
+    started_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    finished_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    error_code: Mapped[Optional[str]] = mapped_column(String(64))
+    error_message: Mapped[Optional[str]] = mapped_column(Text)
+
+    users: Mapped['Users'] = relationship('Users', back_populates='workspace_operations')
+    runtime: Mapped[Optional['RuntimeInstances']] = relationship('RuntimeInstances', back_populates='workspace_operations')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='workspace_operations')
+
+
+class NotebookSnapshots(Base):
+    __tablename__ = 'notebook_snapshots'
+    __table_args__ = (
+        ForeignKeyConstraint(['artifact_object_id'], ['storage_objects.storage_object_id'], ondelete='RESTRICT', name='fk_snapshots_artifact_object'),
+        ForeignKeyConstraint(['created_by'], ['users.user_id'], ondelete='RESTRICT', name='fk_snapshots_created_by'),
+        ForeignKeyConstraint(['script_id'], ['scripts.script_id'], ondelete='RESTRICT', name='fk_snapshots_script'),
+        ForeignKeyConstraint(['source_object_id'], ['storage_objects.storage_object_id'], ondelete='RESTRICT', name='fk_snapshots_source_object'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_snapshots_workspace'),
+        Index('fk_snapshots_created_by', 'created_by'),
+        Index('fk_snapshots_source_object', 'source_object_id'),
+        Index('idx_snapshots_workspace_created', 'workspace_id', 'created_at'),
+        Index('uk_snapshots_artifact', 'artifact_object_id', unique=True),
+        Index('uk_snapshots_script_hash', 'script_id', 'content_hash', unique=True),
+        {'comment': 'Notebook 开发快照，append-only'}
+    )
+
+    snapshot_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    script_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    source_object_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    artifact_object_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    snapshot_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    content_hash: Mapped[str] = mapped_column(CHAR(64), nullable=False)
+    outputs_stripped: Mapped[int] = mapped_column(TINYINT(1), nullable=False, server_default=text("1"))
+    created_by: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    description: Mapped[Optional[str]] = mapped_column(String(1000))
+
+    artifact_object: Mapped['StorageObjects'] = relationship('StorageObjects', foreign_keys=[artifact_object_id], back_populates='notebook_snapshots')
+    users: Mapped['Users'] = relationship('Users', back_populates='notebook_snapshots')
+    script: Mapped['Scripts'] = relationship('Scripts', back_populates='notebook_snapshots')
+    source_object: Mapped['StorageObjects'] = relationship('StorageObjects', foreign_keys=[source_object_id], back_populates='notebook_snapshots_')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='notebook_snapshots')
+
+
+class Versions(Base):
+    __tablename__ = 'versions'
+    __table_args__ = (
+        ForeignKeyConstraint(['artifact_object_id'], ['storage_objects.storage_object_id'], ondelete='RESTRICT', name='fk_versions_artifact_object'),
+        ForeignKeyConstraint(['created_by'], ['users.user_id'], ondelete='RESTRICT', name='fk_versions_created_by'),
+        ForeignKeyConstraint(['script_id'], ['scripts.script_id'], ondelete='RESTRICT', name='fk_versions_script'),
+        ForeignKeyConstraint(['source_object_id'], ['storage_objects.storage_object_id'], ondelete='RESTRICT', name='fk_versions_source_object'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_versions_workspace'),
+        Index('fk_versions_source_object', 'source_object_id'),
+        Index('idx_versions_creator', 'created_by', 'created_at'),
+        Index('idx_versions_workspace_created', 'workspace_id', 'created_at'),
+        Index('uk_versions_artifact', 'artifact_object_id', unique=True),
+        Index('uk_versions_script_hash', 'script_id', 'content_hash', unique=True),
+        Index('uk_versions_script_no', 'script_id', 'version_no', unique=True),
+        {'comment': '不可变稳定版本；调度节点必须引用 versions_id'}
+    )
+
+    versions_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True, comment='稳定版本唯一 ID')
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    script_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    source_object_id: Mapped[str] = mapped_column(CHAR(26), nullable=False, comment='发布时的源对象')
+    artifact_object_id: Mapped[str] = mapped_column(CHAR(26), nullable=False, comment='RustFS 不可变版本制品')
+    version_no: Mapped[int] = mapped_column(INTEGER, nullable=False)
+    version_label: Mapped[str] = mapped_column(String(32), nullable=False, comment='例如 v1.0')
+    source_path: Mapped[str] = mapped_column(String(1024), nullable=False, comment='发布时路径快照')
+    artifact_path: Mapped[str] = mapped_column(String(1500), nullable=False)
+    content_hash: Mapped[str] = mapped_column(CHAR(64), nullable=False)
+    file_size_bytes: Mapped[int] = mapped_column(BIGINT, nullable=False, server_default=text("0"))
+    visibility: Mapped[str] = mapped_column(String(16), nullable=False, server_default=text("'private'"))
+    created_by: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    release_note: Mapped[Optional[str]] = mapped_column(String(1000))
+    schedule_hidden_at: Mapped[Optional[datetime.datetime]] = mapped_column(
+        DATETIME(fsp=3),
+        comment='从调度稳定版本列表移除的时间；不影响版本和运行历史',
+    )
+
+    artifact_object: Mapped['StorageObjects'] = relationship('StorageObjects', foreign_keys=[artifact_object_id], back_populates='versions')
+    users: Mapped['Users'] = relationship('Users', back_populates='versions')
+    script: Mapped['Scripts'] = relationship('Scripts', back_populates='versions')
+    source_object: Mapped['StorageObjects'] = relationship('StorageObjects', foreign_keys=[source_object_id], back_populates='versions_')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='versions')
+    experiments: Mapped[list['Experiments']] = relationship('Experiments', back_populates='versions')
+    schedule_nodes: Mapped[list['ScheduleNodes']] = relationship('ScheduleNodes', back_populates='versions')
+    schedule_node_runs: Mapped[list['ScheduleNodeRuns']] = relationship('ScheduleNodeRuns', back_populates='versions')
+
+
+class Experiments(Base):
+    __tablename__ = 'experiments'
+    __table_args__ = (
+        ForeignKeyConstraint(['logs_object_id'], ['storage_objects.storage_object_id'], ondelete='SET NULL', name='fk_experiments_logs'),
+        ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], ondelete='RESTRICT', name='fk_experiments_owner'),
+        ForeignKeyConstraint(['parent_experiment_id'], ['experiments.experiment_id'], ondelete='SET NULL', name='fk_experiments_parent'),
+        ForeignKeyConstraint(['result_object_id'], ['storage_objects.storage_object_id'], ondelete='SET NULL', name='fk_experiments_result'),
+        ForeignKeyConstraint(['schedule_run_id'], ['schedule_runs.run_id'], ondelete='SET NULL', name='fk_experiments_schedule_run'),
+        ForeignKeyConstraint(['script_id'], ['scripts.script_id'], ondelete='SET NULL', name='fk_experiments_script'),
+        ForeignKeyConstraint(['versions_id'], ['versions.versions_id'], ondelete='SET NULL', name='fk_experiments_version'),
+        ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], ondelete='RESTRICT', name='fk_experiments_workspace'),
+        Index('fk_experiments_logs', 'logs_object_id'),
+        Index('fk_experiments_parent', 'parent_experiment_id'),
+        Index('fk_experiments_result', 'result_object_id'),
+        Index('fk_experiments_script', 'script_id'),
+        Index('idx_experiments_owner', 'owner_user_id', 'created_at'),
+        Index('idx_experiments_schedule_run', 'schedule_run_id'),
+        Index('idx_experiments_version', 'versions_id'),
+        Index('idx_experiments_workspace', 'workspace_id', 'experiment_status', 'created_at'),
+        {'comment': '实验记录'}
+    )
+
+    experiment_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    workspace_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    owner_user_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    experiment_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    source_type: Mapped[str] = mapped_column(String(24), nullable=False, comment='python/notebook/schedule/rerun')
+    experiment_status: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'queued'"))
+    state_version: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("0"), comment='乐观锁版本')
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    script_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    versions_id: Mapped[Optional[str]] = mapped_column(CHAR(26), comment='工作副本运行时可为空')
+    schedule_run_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    parent_experiment_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    parameters_json: Mapped[Optional[dict]] = mapped_column(JSON)
+    environment_json: Mapped[Optional[dict]] = mapped_column(JSON)
+    result_summary: Mapped[Optional[str]] = mapped_column(String(2000))
+    logs_object_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    result_object_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    started_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    finished_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    duration_ms: Mapped[Optional[int]] = mapped_column(BIGINT)
+    deleted_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+
+    logs_object: Mapped[Optional['StorageObjects']] = relationship('StorageObjects', foreign_keys=[logs_object_id], back_populates='experiments')
+    owner_user: Mapped['Users'] = relationship('Users', back_populates='experiments')
+    parent_experiment: Mapped[Optional['Experiments']] = relationship('Experiments', remote_side=[experiment_id], back_populates='parent_experiment_reverse')
+    parent_experiment_reverse: Mapped[list['Experiments']] = relationship('Experiments', remote_side=[parent_experiment_id], back_populates='parent_experiment')
+    result_object: Mapped[Optional['StorageObjects']] = relationship('StorageObjects', foreign_keys=[result_object_id], back_populates='experiments_')
+    schedule_run: Mapped[Optional['ScheduleRuns']] = relationship('ScheduleRuns', back_populates='experiments')
+    script: Mapped[Optional['Scripts']] = relationship('Scripts', back_populates='experiments')
+    versions: Mapped[Optional['Versions']] = relationship('Versions', back_populates='experiments')
+    workspace: Mapped['Workspaces'] = relationship('Workspaces', back_populates='experiments')
+    experiment_metrics: Mapped[list['ExperimentMetrics']] = relationship('ExperimentMetrics', back_populates='experiment')
+    experiment_resources: Mapped[list['ExperimentResources']] = relationship('ExperimentResources', back_populates='experiment')
+
+
+class ScheduleNodes(Base):
+    __tablename__ = 'schedule_nodes'
+    __table_args__ = (
+        ForeignKeyConstraint(['schedule_id'], ['schedules.schedule_id'], ondelete='CASCADE', name='fk_schedule_nodes_schedule'),
+        ForeignKeyConstraint(['versions_id'], ['versions.versions_id'], ondelete='RESTRICT', name='fk_schedule_nodes_version'),
+        Index('idx_schedule_nodes_version', 'versions_id'),
+        Index('uk_schedule_nodes_key', 'schedule_id', 'node_key', unique=True),
+        {'comment': 'DAG 节点，必须引用稳定版本'}
+    )
+
+    node_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    schedule_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    node_key: Mapped[str] = mapped_column(String(64), nullable=False, comment='画布内稳定标识')
+    node_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    versions_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    timeout_seconds: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("600"))
+    retry_count: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("0"))
+    retry_interval_sec: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("5"))
+    position_x: Mapped[decimal.Decimal] = mapped_column(DECIMAL(10, 2), nullable=False, server_default=text("0.00"))
+    position_y: Mapped[decimal.Decimal] = mapped_column(DECIMAL(10, 2), nullable=False, server_default=text("0.00"))
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    updated_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'))
+    arguments_json: Mapped[Optional[dict]] = mapped_column(JSON)
+    env_refs_json: Mapped[Optional[dict]] = mapped_column(JSON, comment='只存密钥引用，不存明文密钥')
+
+    schedule: Mapped['Schedules'] = relationship('Schedules', back_populates='schedule_nodes')
+    versions: Mapped['Versions'] = relationship('Versions', back_populates='schedule_nodes')
+    schedule_edges: Mapped[list['ScheduleEdges']] = relationship('ScheduleEdges', foreign_keys='[ScheduleEdges.source_node_id]', back_populates='source_node')
+    schedule_edges_: Mapped[list['ScheduleEdges']] = relationship('ScheduleEdges', foreign_keys='[ScheduleEdges.target_node_id]', back_populates='target_node')
+    schedule_node_runs: Mapped[list['ScheduleNodeRuns']] = relationship('ScheduleNodeRuns', back_populates='node')
+
+
+class ExperimentMetrics(Base):
+    __tablename__ = 'experiment_metrics'
+    __table_args__ = (
+        ForeignKeyConstraint(['experiment_id'], ['experiments.experiment_id'], ondelete='CASCADE', name='fk_experiment_metrics_experiment'),
+        Index('idx_experiment_metrics_lookup', 'experiment_id', 'metric_name', 'step_no'),
+        {'comment': '实验指标，支持筛选和曲线'}
+    )
+
+    metric_id: Mapped[int] = mapped_column(BIGINT, primary_key=True)
+    experiment_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    metric_name: Mapped[str] = mapped_column(String(128), nullable=False)
+    recorded_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    metric_value: Mapped[Optional[decimal.Decimal]] = mapped_column(Double(asdecimal=True))
+    metric_text: Mapped[Optional[str]] = mapped_column(String(1000))
+    step_no: Mapped[Optional[int]] = mapped_column(BigInteger)
+
+    experiment: Mapped['Experiments'] = relationship('Experiments', back_populates='experiment_metrics')
+
+
+class ExperimentResources(Base):
+    __tablename__ = 'experiment_resources'
+    __table_args__ = (
+        ForeignKeyConstraint(['experiment_id'], ['experiments.experiment_id'], ondelete='CASCADE', name='fk_experiment_resources_experiment'),
+        ForeignKeyConstraint(['resource_id'], ['data_resources.resource_id'], ondelete='RESTRICT', name='fk_experiment_resources_resource'),
+        Index('fk_experiment_resources_resource', 'resource_id'),
+        {'comment': '实验与数据资源'}
+    )
+
+    experiment_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    resource_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    resource_role: Mapped[str] = mapped_column(String(16), primary_key=True, server_default=text("'input'"), comment='input/output')
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+
+    experiment: Mapped['Experiments'] = relationship('Experiments', back_populates='experiment_resources')
+    resource: Mapped['DataResources'] = relationship('DataResources', back_populates='experiment_resources')
+
+
+class ScheduleEdges(Base):
+    __tablename__ = 'schedule_edges'
+    __table_args__ = (
+        ForeignKeyConstraint(['schedule_id'], ['schedules.schedule_id'], ondelete='CASCADE', name='fk_schedule_edges_schedule'),
+        ForeignKeyConstraint(['source_node_id'], ['schedule_nodes.node_id'], ondelete='CASCADE', name='fk_schedule_edges_source'),
+        ForeignKeyConstraint(['target_node_id'], ['schedule_nodes.node_id'], ondelete='CASCADE', name='fk_schedule_edges_target'),
+        Index('fk_schedule_edges_source', 'source_node_id'),
+        Index('idx_schedule_edges_target', 'target_node_id'),
+        Index('uk_schedule_edges_pair', 'schedule_id', 'source_node_id', 'target_node_id', unique=True),
+        {'comment': 'DAG 有向边'}
+    )
+
+    edge_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    schedule_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    source_node_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    target_node_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    condition_expr: Mapped[Optional[str]] = mapped_column(String(1000))
+
+    schedule: Mapped['Schedules'] = relationship('Schedules', back_populates='schedule_edges')
+    source_node: Mapped['ScheduleNodes'] = relationship('ScheduleNodes', foreign_keys=[source_node_id], back_populates='schedule_edges')
+    target_node: Mapped['ScheduleNodes'] = relationship('ScheduleNodes', foreign_keys=[target_node_id], back_populates='schedule_edges_')
+
+
+class ScheduleNodeRuns(Base):
+    __tablename__ = 'schedule_node_runs'
+    __table_args__ = (
+        ForeignKeyConstraint(['logs_object_id'], ['storage_objects.storage_object_id'], ondelete='SET NULL', name='fk_node_runs_logs'),
+        ForeignKeyConstraint(['node_id'], ['schedule_nodes.node_id'], ondelete='RESTRICT', name='fk_node_runs_node'),
+        ForeignKeyConstraint(['result_object_id'], ['storage_objects.storage_object_id'], ondelete='SET NULL', name='fk_node_runs_result'),
+        ForeignKeyConstraint(['run_id'], ['schedule_runs.run_id'], ondelete='CASCADE', name='fk_node_runs_run'),
+        ForeignKeyConstraint(['versions_id'], ['versions.versions_id'], ondelete='RESTRICT', name='fk_node_runs_version'),
+        Index('fk_node_runs_logs', 'logs_object_id'),
+        Index('fk_node_runs_node', 'node_id'),
+        Index('fk_node_runs_result', 'result_object_id'),
+        Index('idx_node_runs_status', 'run_id', 'node_status'),
+        Index('idx_node_runs_version', 'versions_id'),
+        Index('uk_node_runs_attempt', 'run_id', 'node_id', 'attempt_no', unique=True),
+        {'comment': '调度节点运行与重试'}
+    )
+
+    node_run_id: Mapped[str] = mapped_column(CHAR(26), primary_key=True)
+    run_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    node_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    versions_id: Mapped[str] = mapped_column(CHAR(26), nullable=False)
+    attempt_no: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("1"))
+    node_status: Mapped[str] = mapped_column(String(24), nullable=False, server_default=text("'queued'"), comment='queued/running/succeeded/failed/skipped/cancelled/timed_out')
+    state_version: Mapped[int] = mapped_column(INTEGER, nullable=False, server_default=text("0"), comment='乐观锁版本')
+    created_at: Mapped[datetime.datetime] = mapped_column(DATETIME(fsp=3), nullable=False, server_default=text('CURRENT_TIMESTAMP(3)'))
+    started_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    finished_at: Mapped[Optional[datetime.datetime]] = mapped_column(DATETIME(fsp=3))
+    duration_ms: Mapped[Optional[int]] = mapped_column(BIGINT)
+    exit_code: Mapped[Optional[int]] = mapped_column(Integer)
+    message: Mapped[Optional[str]] = mapped_column(String(2000))
+    metrics_json: Mapped[Optional[dict]] = mapped_column(JSON)
+    logs_object_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+    result_object_id: Mapped[Optional[str]] = mapped_column(CHAR(26))
+
+    logs_object: Mapped[Optional['StorageObjects']] = relationship('StorageObjects', foreign_keys=[logs_object_id], back_populates='schedule_node_runs')
+    node: Mapped['ScheduleNodes'] = relationship('ScheduleNodes', back_populates='schedule_node_runs')
+    result_object: Mapped[Optional['StorageObjects']] = relationship('StorageObjects', foreign_keys=[result_object_id], back_populates='schedule_node_runs_')
+    run: Mapped['ScheduleRuns'] = relationship('ScheduleRuns', back_populates='schedule_node_runs')
+    versions: Mapped['Versions'] = relationship('Versions', back_populates='schedule_node_runs')
diff --git a/common/src/common/db/session.py b/common/src/common/db/session.py
new file mode 100644
index 0000000..65ed3ca
--- /dev/null
+++ b/common/src/common/db/session.py
@@ -0,0 +1,51 @@
+from __future__ import annotations
+
+from collections.abc import AsyncIterator
+from contextlib import asynccontextmanager
+
+from sqlalchemy.ext.asyncio import (
+    AsyncEngine,
+    AsyncSession,
+    async_sessionmaker,
+    create_async_engine,
+)
+
+AsyncSessionFactory = async_sessionmaker[AsyncSession]
+
+
+def create_database_engine(
+    database_url: str,
+    *,
+    echo: bool = False,
+    pool_pre_ping: bool = True,
+) -> AsyncEngine:
+    """Create an async SQLAlchemy engine without storing global connection state."""
+    return create_async_engine(
+        database_url,
+        echo=echo,
+        pool_pre_ping=pool_pre_ping,
+    )
+
+
+def create_session_factory(engine: AsyncEngine) -> AsyncSessionFactory:
+    """Create the shared async session factory used by FastAPI dependencies."""
+    return async_sessionmaker(
+        bind=engine,
+        class_=AsyncSession,
+        expire_on_commit=False,
+        autoflush=False,
+    )
+
+
+@asynccontextmanager
+async def session_scope(
+    factory: AsyncSessionFactory,
+) -> AsyncIterator[AsyncSession]:
+    """Commit a unit of work or roll it back when an exception is raised."""
+    async with factory() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise
diff --git a/common/src/common/eventing.py b/common/src/common/eventing.py
new file mode 100644
index 0000000..7035679
--- /dev/null
+++ b/common/src/common/eventing.py
@@ -0,0 +1,71 @@
+from __future__ import annotations
+
+from datetime import UTC, datetime
+from typing import Any
+
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db.models import OutboxEvents
+from common.ids import new_ulid
+
+
+SUPPORTED_EVENT_TYPES = {
+    "schedule.run.requested",
+    "job.node.execute",
+    "job.node.finished",
+}
+
+
+def utcnow() -> datetime:
+    return datetime.now(UTC).replace(tzinfo=None)
+
+
+def event_time(value: datetime | None = None) -> str:
+    item = value or utcnow()
+    if item.tzinfo is None:
+        item = item.replace(tzinfo=UTC)
+    return item.astimezone(UTC).isoformat().replace("+00:00", "Z")
+
+
+async def add_outbox_event(
+    session: AsyncSession,
+    *,
+    event_type: str,
+    producer: str,
+    trace_id: str,
+    aggregate_type: str,
+    aggregate_id: str,
+    idempotency_key: str,
+    payload: dict[str, Any],
+    available_at: datetime | None = None,
+) -> OutboxEvents:
+    if event_type not in SUPPORTED_EVENT_TYPES:
+        raise ValueError(f"unsupported event type: {event_type}")
+    event_id = new_ulid()
+    envelope = {
+        "event_id": event_id,
+        "event_type": event_type,
+        "schema_version": 1,
+        "occurred_at": event_time(),
+        "producer": producer,
+        "trace_id": trace_id,
+        "aggregate_type": aggregate_type,
+        "aggregate_id": aggregate_id,
+        "idempotency_key": idempotency_key,
+        "payload": payload,
+    }
+    item = OutboxEvents(
+        event_id=event_id,
+        aggregate_type=aggregate_type,
+        aggregate_id=aggregate_id,
+        event_type=event_type,
+        schema_version=1,
+        payload_json=envelope,
+        event_status="pending",
+        available_at=available_at or utcnow(),
+        retry_count=0,
+        trace_id=trace_id,
+        idempotency_key=idempotency_key,
+    )
+    session.add(item)
+    return item
diff --git a/common/src/common/ids.py b/common/src/common/ids.py
new file mode 100644
index 0000000..f738c8a
--- /dev/null
+++ b/common/src/common/ids.py
@@ -0,0 +1,17 @@
+from __future__ import annotations
+
+import secrets
+import time
+
+_CROCKFORD32 = "0123456789ABCDEFGHJKMNPQRSTVWXYZ"
+
+
+def new_ulid() -> str:
+    """Return a lexicographically sortable 26-character ULID."""
+    timestamp_ms = int(time.time_ns() // 1_000_000)
+    value = (timestamp_ms << 80) | secrets.randbits(80)
+    encoded = ["0"] * 26
+    for index in range(25, -1, -1):
+        encoded[index] = _CROCKFORD32[value & 31]
+        value >>= 5
+    return "".join(encoded)
diff --git a/common/src/common/migrations/README b/common/src/common/migrations/README
new file mode 100644
index 0000000..98e4f9c
--- /dev/null
+++ b/common/src/common/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/common/src/common/migrations/env.py b/common/src/common/migrations/env.py
new file mode 100644
index 0000000..3f8cba8
--- /dev/null
+++ b/common/src/common/migrations/env.py
@@ -0,0 +1,78 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+from common.db.base import Base
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/common/src/common/migrations/script.py.mako b/common/src/common/migrations/script.py.mako
new file mode 100644
index 0000000..1101630
--- /dev/null
+++ b/common/src/common/migrations/script.py.mako
@@ -0,0 +1,28 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}
diff --git a/common/src/common/service_app.py b/common/src/common/service_app.py
new file mode 100644
index 0000000..bebb15c
--- /dev/null
+++ b/common/src/common/service_app.py
@@ -0,0 +1,79 @@
+from __future__ import annotations
+
+import asyncio
+import os
+from datetime import UTC, datetime
+from typing import Any, Callable
+
+from fastapi import FastAPI, Response, status
+
+
+def _target_list() -> list[str]:
+    value = os.getenv("READINESS_TARGETS", "")
+    return [item.strip() for item in value.split(",") if item.strip()]
+
+
+async def _check_tcp_target(target: str) -> dict[str, Any]:
+    host, port_text = target.rsplit(":", 1)
+    try:
+        reader, writer = await asyncio.wait_for(
+            asyncio.open_connection(host, int(port_text)),
+            timeout=1.5,
+        )
+        writer.close()
+        await writer.wait_closed()
+        return {"target": target, "status": "ok"}
+    except (OSError, TimeoutError, ValueError) as exc:
+        return {
+            "target": target,
+            "status": "error",
+            "detail": type(exc).__name__,
+        }
+
+
+def create_service_app(
+    service_name: str,
+    *,
+    lifespan: Callable[..., Any] | None = None,
+) -> FastAPI:
+    app = FastAPI(
+        title=f"{service_name} service",
+        version="0.1.0",
+        docs_url="/docs",
+        redoc_url=None,
+        lifespan=lifespan,
+    )
+
+    def base_payload(state: str) -> dict[str, str]:
+        return {
+            "status": state,
+            "service": service_name,
+            "timestamp": datetime.now(UTC).isoformat(),
+        }
+
+    @app.get("/")
+    async def root() -> dict[str, str]:
+        return base_payload("running")
+
+    @app.get("/health/live")
+    async def live() -> dict[str, str]:
+        return base_payload("ok")
+
+    @app.get("/api/v1/health")
+    async def public_health() -> dict[str, str]:
+        return base_payload("ok")
+
+    @app.get("/health/ready")
+    async def ready(response: Response) -> dict[str, Any]:
+        checks = await asyncio.gather(
+            *(_check_tcp_target(target) for target in _target_list())
+        )
+        ready_state = all(check["status"] == "ok" for check in checks)
+        if not ready_state:
+            response.status_code = status.HTTP_503_SERVICE_UNAVAILABLE
+        return {
+            **base_payload("ready" if ready_state else "not_ready"),
+            "checks": checks,
+        }
+
+    return app
diff --git a/common/src/common/storage/__init__.py b/common/src/common/storage/__init__.py
new file mode 100644
index 0000000..417f62a
--- /dev/null
+++ b/common/src/common/storage/__init__.py
@@ -0,0 +1,3 @@
+from common.storage.rustfs import RustFSObjectStore
+
+__all__ = ["RustFSObjectStore"]
diff --git a/common/src/common/storage/rustfs.py b/common/src/common/storage/rustfs.py
new file mode 100644
index 0000000..88bc51c
--- /dev/null
+++ b/common/src/common/storage/rustfs.py
@@ -0,0 +1,126 @@
+from __future__ import annotations
+
+import hashlib
+from typing import Any, BinaryIO
+
+import boto3
+from botocore.client import Config
+from botocore.exceptions import ClientError
+
+
+class RustFSObjectStore:
+    def __init__(
+        self,
+        *,
+        internal_endpoint: str,
+        public_endpoint: str,
+        access_key: str,
+        secret_key: str,
+    ) -> None:
+        common = {
+            "aws_access_key_id": access_key,
+            "aws_secret_access_key": secret_key,
+            "region_name": "us-east-1",
+            "config": Config(
+                signature_version="s3v4",
+                s3={"addressing_style": "path"},
+            ),
+        }
+        self.internal = boto3.client(
+            "s3",
+            endpoint_url=internal_endpoint.rstrip("/"),
+            **common,
+        )
+        self.public = boto3.client(
+            "s3",
+            endpoint_url=public_endpoint.rstrip("/"),
+            **common,
+        )
+
+    def ensure_bucket(self, bucket_name: str) -> None:
+        try:
+            self.internal.head_bucket(Bucket=bucket_name)
+        except ClientError as exc:
+            code = str(exc.response.get("Error", {}).get("Code", ""))
+            if code not in {"404", "NoSuchBucket", "NotFound"}:
+                raise
+            self.internal.create_bucket(Bucket=bucket_name)
+
+    def presign_put(
+        self,
+        *,
+        bucket_name: str,
+        object_key: str,
+        content_type: str,
+        expected_hash: str | None,
+        expires_seconds: int,
+        public: bool,
+    ) -> tuple[str, dict[str, str]]:
+        params: dict[str, Any] = {
+            "Bucket": bucket_name,
+            "Key": object_key,
+            "ContentType": content_type,
+        }
+        headers = {"Content-Type": content_type}
+        if expected_hash:
+            params["Metadata"] = {"sha256": expected_hash}
+            headers["x-amz-meta-sha256"] = expected_hash
+        client = self.public if public else self.internal
+        url = client.generate_presigned_url(
+            "put_object",
+            Params=params,
+            ExpiresIn=expires_seconds,
+        )
+        return url, headers
+
+    def presign_get(
+        self,
+        *,
+        bucket_name: str,
+        object_key: str,
+        file_name: str,
+        expires_seconds: int,
+    ) -> str:
+        return self.public.generate_presigned_url(
+            "get_object",
+            Params={
+                "Bucket": bucket_name,
+                "Key": object_key,
+                "ResponseContentDisposition": (
+                    f'attachment; filename="{file_name.encode("ascii", "ignore").decode() or "download"}"'
+                ),
+            },
+            ExpiresIn=expires_seconds,
+        )
+
+    def put_bytes(
+        self,
+        *,
+        bucket_name: str,
+        object_key: str,
+        content: bytes,
+        content_type: str,
+        content_hash: str,
+    ) -> None:
+        self.internal.put_object(
+            Bucket=bucket_name,
+            Key=object_key,
+            Body=content,
+            ContentType=content_type,
+            Metadata={"sha256": content_hash},
+        )
+
+    def head(self, *, bucket_name: str, object_key: str) -> dict[str, Any]:
+        return self.internal.head_object(Bucket=bucket_name, Key=object_key)
+
+    def sha256(self, *, bucket_name: str, object_key: str) -> str:
+        response = self.internal.get_object(Bucket=bucket_name, Key=object_key)
+        body: BinaryIO = response["Body"]
+        digest = hashlib.sha256()
+        while chunk := body.read(1024 * 1024):
+            digest.update(chunk)
+        body.close()
+        return digest.hexdigest()
+
+    def delete(self, *, bucket_name: str, object_key: str) -> None:
+        self.internal.delete_object(Bucket=bucket_name, Key=object_key)
diff --git a/common/src/common/utils.py b/common/src/common/utils.py
new file mode 100644
index 0000000..3c4e086
--- /dev/null
+++ b/common/src/common/utils.py
@@ -0,0 +1,7 @@
+# coding=utf-8
+"""
+@Time   :2026/7/27
+@Author :tao.chen 
+"""
+def hello_world():
+    return 'Hello World!'
\ No newline at end of file
diff --git a/contracts/README.md b/contracts/README.md
new file mode 100644
index 0000000..002f4b4
--- /dev/null
+++ b/contracts/README.md
@@ -0,0 +1,15 @@
+# Contracts
+
+模块接口契约公共目录：
+
+```text
+openapi/     HTTP OpenAPI 3 契约
+events/      MySQL Outbox 内部事件 JSON Schema
+runtime/     Runtime Adapter 契约
+locks/       Notebook 编辑锁契约
+```
+
+各服务实现必须以本目录中的版本化契约为准。
+
+快速 Demo 的跨模块边界、状态枚举和事件路由统一见
+`demo-core-v1.md`。
diff --git a/contracts/__init__.py b/contracts/__init__.py
new file mode 100644
index 0000000..3992080
--- /dev/null
+++ b/contracts/__init__.py
@@ -0,0 +1 @@
+"""Executable cross-service contracts."""
diff --git a/contracts/demo-core-v1.md b/contracts/demo-core-v1.md
new file mode 100644
index 0000000..da788ff
--- /dev/null
+++ b/contracts/demo-core-v1.md
@@ -0,0 +1,56 @@
+# 快速 Demo 核心契约 V1
+
+冻结日期：2026-07-27  
+状态：`frozen-target`
+
+## 1. 契约边界
+
+Demo 公共 HTTP API 由两部分共同组成：
+
+1. `openapi/platform-api-v1.yaml`：已经运行的脚本、稳定版本详情、数据资源和文件编辑锁接口。
+2. `openapi/demo-core-extension-v1.yaml`：第 15 小步冻结、后续小步实现的上下文、Jupyter 票据、稳定版本列表、调度和运行查询接口。
+
+内部 Storage 与 Runtime 接口继续分别以
+`openapi/storage-api-internal-v1.yaml` 和
+`openapi/runtime-api-internal-v1.yaml` 为准。
+
+## 2. 不可变约束
+
+- 主标识使用 ULID；调度节点只引用不可变的 `versions_id`。
+- 当前认证上下文由 `X-User-ID`、`X-Workspace-ID` 提供；以后换成 JWT 时不得改变业务 DTO。
+- 修改调度方案必须提交 `workflow_version`，冲突返回 `412`。
+- 创建调度、立即运行、启停和取消使用 `Idempotency-Key`。
+- `schedule_runs.schedule_snapshot` 固化本次执行 DAG，后续编辑不影响已创建的运行。
+- 浏览器不能拿到 Jupyter 内部 Token，只能获得短期访问 Cookie。
+
+## 3. 状态值
+
+- 调度运行：`queued / running / succeeded / failed / cancelled / timed_out`
+- 节点运行：`queued / running / succeeded / failed / skipped / cancelled / timed_out`
+- 失败策略：`stop / continue`
+- 触发类型：`manual / cron / api / retry`
+
+## 4. MySQL Outbox 与 HTTP 推送
+
+| 事件 | 写入方 | 处理方 |
+|---|---|---|
+| `schedule.run.requested` | Backend / Cron Dispatcher | Schedule Executor |
+| `job.node.execute` | Schedule Executor | Schedule Executor Worker |
+| `job.node.finished` | Schedule Executor Worker | Schedule Executor |
+
+业务事务先写 `outbox_events`。Backend 对“立即运行”执行一次内部 HTTP 推送，
+Executor 同时轮询 MySQL 作为兜底；`consumer_inbox` 防止同一事件重复执行。
+
+## 5. 模块所有权
+
+| 模块 | 拥有的数据与职责 |
+|---|---|
+| Platform API | 脚本、稳定版本、调度定义、运行查询、Outbox 写入 |
+| Runtime Manager | Workspace/Jupyter 生命周期与内部运行态 |
+| Nginx | 统一入口、Jupyter HTTP/WebSocket 代理 |
+| Schedule Orchestrator | 消费调度请求、解析 DAG、推进节点状态 |
+| Job Worker | 读取稳定版本、执行节点、保存日志/结果、报告终态 |
+| Storage Service | RustFS 对象元数据与预签名访问 |
+
+模块间不得复制定义 DTO、状态枚举、错误结构或事件字段；契约变更必须先
+升级本目录中的版本化文件。
diff --git a/contracts/events/README.md b/contracts/events/README.md
new file mode 100644
index 0000000..4e0482a
--- /dev/null
+++ b/contracts/events/README.md
@@ -0,0 +1,11 @@
+# Database Event Schemas
+
+内部事件以 JSON Schema Draft 2020-12 定义：
+
+- `event-envelope-v1.json`：公共事件信封；
+- `schedule-run-requested-v1.json`：请求启动一次调度运行；
+- `job-node-execute-v1.json`：请求执行一个稳定版本节点；
+- `job-node-finished-v1.json`：节点终态。
+
+事件先随业务事务写入 MySQL `outbox_events`，Schedule Executor 直接轮询处理；
+`consumer_inbox` 提供幂等保护。字段和状态值不得在生产者或消费者中另行定义。
diff --git a/contracts/events/event-envelope-v1.json b/contracts/events/event-envelope-v1.json
new file mode 100644
index 0000000..7484242
--- /dev/null
+++ b/contracts/events/event-envelope-v1.json
@@ -0,0 +1,72 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "event-envelope-v1.json",
+  "title": "Model Platform Event Envelope V1",
+  "description": "MySQL Outbox 中所有内部业务事件共用的不可变信封。",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "event_id",
+    "event_type",
+    "schema_version",
+    "occurred_at",
+    "producer",
+    "trace_id",
+    "aggregate_type",
+    "aggregate_id",
+    "idempotency_key",
+    "payload"
+  ],
+  "properties": {
+    "event_id": {
+      "$ref": "#/$defs/ulid"
+    },
+    "event_type": {
+      "type": "string",
+      "pattern": "^[a-z][a-z0-9]*(\\.[a-z][a-z0-9_]*)+$"
+    },
+    "schema_version": {
+      "const": 1
+    },
+    "occurred_at": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "producer": {
+      "type": "string",
+      "minLength": 1,
+      "maxLength": 64
+    },
+    "trace_id": {
+      "type": "string",
+      "minLength": 1,
+      "maxLength": 64
+    },
+    "aggregate_type": {
+      "type": "string",
+      "minLength": 1,
+      "maxLength": 64
+    },
+    "aggregate_id": {
+      "type": "string",
+      "minLength": 1,
+      "maxLength": 128
+    },
+    "idempotency_key": {
+      "type": "string",
+      "minLength": 8,
+      "maxLength": 128
+    },
+    "payload": {
+      "type": "object"
+    }
+  },
+  "$defs": {
+    "ulid": {
+      "type": "string",
+      "minLength": 26,
+      "maxLength": 26,
+      "pattern": "^[0-9A-HJKMNP-TV-Z]{26}$"
+    }
+  }
+}
diff --git a/contracts/events/job-node-execute-v1.json b/contracts/events/job-node-execute-v1.json
new file mode 100644
index 0000000..423ad25
--- /dev/null
+++ b/contracts/events/job-node-execute-v1.json
@@ -0,0 +1,125 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "job-node-execute-v1.json",
+  "title": "Job Node Execute V1",
+  "description": "调度编排器请求 Job Worker 执行一个稳定版本节点。",
+  "allOf": [
+    {
+      "$ref": "event-envelope-v1.json"
+    },
+    {
+      "type": "object",
+      "properties": {
+        "event_type": {
+          "const": "job.node.execute"
+        },
+        "aggregate_type": {
+          "const": "schedule_node_run"
+        },
+        "payload": {
+          "$ref": "job-node-execute-v1.json#/$defs/payload"
+        }
+      }
+    }
+  ],
+  "$defs": {
+    "ulid": {
+      "type": "string",
+      "minLength": 26,
+      "maxLength": 26,
+      "pattern": "^[0-9A-HJKMNP-TV-Z]{26}$"
+    },
+    "payload": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": [
+        "workspace_id",
+        "run_id",
+        "node_run_id",
+        "node_id",
+        "versions_id",
+        "attempt_no",
+        "script_type",
+        "artifact_object_id",
+        "artifact_path",
+        "timeout_seconds",
+        "arguments"
+      ],
+      "properties": {
+        "workspace_id": {
+          "$ref": "job-node-execute-v1.json#/$defs/ulid"
+        },
+        "run_id": {
+          "$ref": "job-node-execute-v1.json#/$defs/ulid"
+        },
+        "node_run_id": {
+          "$ref": "job-node-execute-v1.json#/$defs/ulid"
+        },
+        "node_id": {
+          "$ref": "job-node-execute-v1.json#/$defs/ulid"
+        },
+        "versions_id": {
+          "$ref": "job-node-execute-v1.json#/$defs/ulid"
+        },
+        "attempt_no": {
+          "type": "integer",
+          "minimum": 1,
+          "maximum": 11
+        },
+        "script_type": {
+          "enum": [
+            "python",
+            "notebook"
+          ]
+        },
+        "artifact_object_id": {
+          "$ref": "job-node-execute-v1.json#/$defs/ulid"
+        },
+        "artifact_path": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 1024
+        },
+        "timeout_seconds": {
+          "type": "integer",
+          "minimum": 1,
+          "maximum": 86400
+        },
+        "arguments": {
+          "type": "array",
+          "maxItems": 100,
+          "items": {
+            "type": "string",
+            "maxLength": 1000
+          }
+        }
+      }
+    }
+  },
+  "examples": [
+    {
+      "event_id": "01K123456789ABCDEFGHJKMNPZ",
+      "event_type": "job.node.execute",
+      "schema_version": 1,
+      "occurred_at": "2026-07-27T08:00:01Z",
+      "producer": "schedule-orchestrator",
+      "trace_id": "req-demo-0001",
+      "aggregate_type": "schedule_node_run",
+      "aggregate_id": "01K123456789ABCDEFGHJKMNQ0",
+      "idempotency_key": "01K123456789ABCDEFGHJKMNQ0:1",
+      "payload": {
+        "workspace_id": "01K123456789ABCDEFGHJKMNPS",
+        "run_id": "01K123456789ABCDEFGHJKMNPR",
+        "node_run_id": "01K123456789ABCDEFGHJKMNQ0",
+        "node_id": "01K123456789ABCDEFGHJKMNPW",
+        "versions_id": "01K123456789ABCDEFGHJKMNPX",
+        "attempt_no": 1,
+        "script_type": "python",
+        "artifact_object_id": "01K123456789ABCDEFGHJKMNPY",
+        "artifact_path": "versions/prepare/v1.py",
+        "timeout_seconds": 600,
+        "arguments": []
+      }
+    }
+  ]
+}
diff --git a/contracts/events/job-node-finished-v1.json b/contracts/events/job-node-finished-v1.json
new file mode 100644
index 0000000..4a925cc
--- /dev/null
+++ b/contracts/events/job-node-finished-v1.json
@@ -0,0 +1,162 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "job-node-finished-v1.json",
+  "title": "Job Node Finished V1",
+  "description": "Job Worker 报告一次节点执行的终态，调度编排器据此推进 DAG。",
+  "allOf": [
+    {
+      "$ref": "event-envelope-v1.json"
+    },
+    {
+      "type": "object",
+      "properties": {
+        "event_type": {
+          "const": "job.node.finished"
+        },
+        "aggregate_type": {
+          "const": "schedule_node_run"
+        },
+        "payload": {
+          "$ref": "job-node-finished-v1.json#/$defs/payload"
+        }
+      }
+    }
+  ],
+  "$defs": {
+    "ulid": {
+      "type": "string",
+      "minLength": 26,
+      "maxLength": 26,
+      "pattern": "^[0-9A-HJKMNP-TV-Z]{26}$"
+    },
+    "nullableUlid": {
+      "oneOf": [
+        {
+          "$ref": "job-node-finished-v1.json#/$defs/ulid"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "payload": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": [
+        "workspace_id",
+        "run_id",
+        "node_run_id",
+        "node_id",
+        "versions_id",
+        "attempt_no",
+        "node_status",
+        "exit_code",
+        "started_at",
+        "finished_at",
+        "duration_ms",
+        "logs_object_id",
+        "result_object_id",
+        "error_code",
+        "error_message"
+      ],
+      "properties": {
+        "workspace_id": {
+          "$ref": "job-node-finished-v1.json#/$defs/ulid"
+        },
+        "run_id": {
+          "$ref": "job-node-finished-v1.json#/$defs/ulid"
+        },
+        "node_run_id": {
+          "$ref": "job-node-finished-v1.json#/$defs/ulid"
+        },
+        "node_id": {
+          "$ref": "job-node-finished-v1.json#/$defs/ulid"
+        },
+        "versions_id": {
+          "$ref": "job-node-finished-v1.json#/$defs/ulid"
+        },
+        "attempt_no": {
+          "type": "integer",
+          "minimum": 1,
+          "maximum": 11
+        },
+        "node_status": {
+          "enum": [
+            "succeeded",
+            "failed",
+            "cancelled",
+            "timed_out"
+          ]
+        },
+        "exit_code": {
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "started_at": {
+          "type": "string",
+          "format": "date-time"
+        },
+        "finished_at": {
+          "type": "string",
+          "format": "date-time"
+        },
+        "duration_ms": {
+          "type": "integer",
+          "minimum": 0
+        },
+        "logs_object_id": {
+          "$ref": "job-node-finished-v1.json#/$defs/nullableUlid"
+        },
+        "result_object_id": {
+          "$ref": "job-node-finished-v1.json#/$defs/nullableUlid"
+        },
+        "error_code": {
+          "type": [
+            "string",
+            "null"
+          ],
+          "maxLength": 64
+        },
+        "error_message": {
+          "type": [
+            "string",
+            "null"
+          ],
+          "maxLength": 2000
+        }
+      }
+    }
+  },
+  "examples": [
+    {
+      "event_id": "01K123456789ABCDEFGHJKMNQ1",
+      "event_type": "job.node.finished",
+      "schema_version": 1,
+      "occurred_at": "2026-07-27T08:00:03Z",
+      "producer": "job-worker",
+      "trace_id": "req-demo-0001",
+      "aggregate_type": "schedule_node_run",
+      "aggregate_id": "01K123456789ABCDEFGHJKMNQ0",
+      "idempotency_key": "01K123456789ABCDEFGHJKMNQ0:1:finished",
+      "payload": {
+        "workspace_id": "01K123456789ABCDEFGHJKMNPS",
+        "run_id": "01K123456789ABCDEFGHJKMNPR",
+        "node_run_id": "01K123456789ABCDEFGHJKMNQ0",
+        "node_id": "01K123456789ABCDEFGHJKMNPW",
+        "versions_id": "01K123456789ABCDEFGHJKMNPX",
+        "attempt_no": 1,
+        "node_status": "succeeded",
+        "exit_code": 0,
+        "started_at": "2026-07-27T08:00:01Z",
+        "finished_at": "2026-07-27T08:00:03Z",
+        "duration_ms": 2000,
+        "logs_object_id": null,
+        "result_object_id": null,
+        "error_code": null,
+        "error_message": null
+      }
+    }
+  ]
+}
diff --git a/contracts/events/schedule-run-requested-v1.json b/contracts/events/schedule-run-requested-v1.json
new file mode 100644
index 0000000..e8603e3
--- /dev/null
+++ b/contracts/events/schedule-run-requested-v1.json
@@ -0,0 +1,255 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "schedule-run-requested-v1.json",
+  "title": "Schedule Run Requested V1",
+  "description": "Platform API 或 Cron Dispatcher 请求调度编排器启动一次固化 DAG。",
+  "allOf": [
+    {
+      "$ref": "event-envelope-v1.json"
+    },
+    {
+      "type": "object",
+      "properties": {
+        "event_type": {
+          "const": "schedule.run.requested"
+        },
+        "aggregate_type": {
+          "const": "schedule_run"
+        },
+        "payload": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/payload"
+        }
+      }
+    }
+  ],
+  "$defs": {
+    "ulid": {
+      "type": "string",
+      "minLength": 26,
+      "maxLength": 26,
+      "pattern": "^[0-9A-HJKMNP-TV-Z]{26}$"
+    },
+    "node": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": [
+        "node_id",
+        "node_key",
+        "versions_id",
+        "script_type",
+        "artifact_object_id",
+        "artifact_path",
+        "timeout_seconds",
+        "retry_count",
+        "retry_interval_sec",
+        "arguments"
+      ],
+      "properties": {
+        "node_id": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+        },
+        "node_key": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 64
+        },
+        "versions_id": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+        },
+        "script_type": {
+          "enum": [
+            "python",
+            "notebook"
+          ]
+        },
+        "artifact_object_id": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+        },
+        "artifact_path": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 1024
+        },
+        "timeout_seconds": {
+          "type": "integer",
+          "minimum": 1,
+          "maximum": 86400
+        },
+        "retry_count": {
+          "type": "integer",
+          "minimum": 0,
+          "maximum": 10
+        },
+        "retry_interval_sec": {
+          "type": "integer",
+          "minimum": 0,
+          "maximum": 3600
+        },
+        "arguments": {
+          "type": "array",
+          "maxItems": 100,
+          "items": {
+            "type": "string",
+            "maxLength": 1000
+          }
+        }
+      }
+    },
+    "edge": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": [
+        "source_node_id",
+        "target_node_id"
+      ],
+      "properties": {
+        "source_node_id": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+        },
+        "target_node_id": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+        }
+      }
+    },
+    "snapshot": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": [
+        "schedule_name",
+        "workflow_version",
+        "max_concurrency",
+        "failure_policy",
+        "nodes",
+        "edges"
+      ],
+      "properties": {
+        "schedule_name": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 255
+        },
+        "workflow_version": {
+          "type": "integer",
+          "minimum": 1
+        },
+        "max_concurrency": {
+          "type": "integer",
+          "minimum": 1,
+          "maximum": 100
+        },
+        "failure_policy": {
+          "enum": [
+            "stop",
+            "continue"
+          ]
+        },
+        "nodes": {
+          "type": "array",
+          "minItems": 1,
+          "maxItems": 100,
+          "items": {
+            "$ref": "schedule-run-requested-v1.json#/$defs/node"
+          }
+        },
+        "edges": {
+          "type": "array",
+          "maxItems": 500,
+          "items": {
+            "$ref": "schedule-run-requested-v1.json#/$defs/edge"
+          }
+        }
+      }
+    },
+    "payload": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": [
+        "workspace_id",
+        "schedule_id",
+        "run_id",
+        "workflow_version",
+        "trigger_type",
+        "triggered_by",
+        "schedule_snapshot"
+      ],
+      "properties": {
+        "workspace_id": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+        },
+        "schedule_id": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+        },
+        "run_id": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+        },
+        "workflow_version": {
+          "type": "integer",
+          "minimum": 1
+        },
+        "trigger_type": {
+          "enum": [
+            "manual",
+            "cron",
+            "api",
+            "retry"
+          ]
+        },
+        "triggered_by": {
+          "oneOf": [
+            {
+              "$ref": "schedule-run-requested-v1.json#/$defs/ulid"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "schedule_snapshot": {
+          "$ref": "schedule-run-requested-v1.json#/$defs/snapshot"
+        }
+      }
+    }
+  },
+  "examples": [
+    {
+      "event_id": "01K123456789ABCDEFGHJKMNPQ",
+      "event_type": "schedule.run.requested",
+      "schema_version": 1,
+      "occurred_at": "2026-07-27T08:00:00Z",
+      "producer": "platform-api",
+      "trace_id": "req-demo-0001",
+      "aggregate_type": "schedule_run",
+      "aggregate_id": "01K123456789ABCDEFGHJKMNPR",
+      "idempotency_key": "run-demo-0001",
+      "payload": {
+        "workspace_id": "01K123456789ABCDEFGHJKMNPS",
+        "schedule_id": "01K123456789ABCDEFGHJKMNPT",
+        "run_id": "01K123456789ABCDEFGHJKMNPR",
+        "workflow_version": 1,
+        "trigger_type": "manual",
+        "triggered_by": "01K123456789ABCDEFGHJKMNPV",
+        "schedule_snapshot": {
+          "schedule_name": "每日模型演示",
+          "workflow_version": 1,
+          "max_concurrency": 1,
+          "failure_policy": "stop",
+          "nodes": [
+            {
+              "node_id": "01K123456789ABCDEFGHJKMNPW",
+              "node_key": "prepare",
+              "versions_id": "01K123456789ABCDEFGHJKMNPX",
+              "script_type": "python",
+              "artifact_object_id": "01K123456789ABCDEFGHJKMNPY",
+              "artifact_path": "versions/prepare/v1.py",
+              "timeout_seconds": 600,
+              "retry_count": 0,
+              "retry_interval_sec": 5,
+              "arguments": []
+            }
+          ],
+          "edges": []
+        }
+      }
+    }
+  ]
+}
diff --git a/contracts/locks/README.md b/contracts/locks/README.md
new file mode 100644
index 0000000..3578db1
--- /dev/null
+++ b/contracts/locks/README.md
@@ -0,0 +1,3 @@
+# File Edit Lock
+
+当前版本见 [file-edit-lock-v1.md](file-edit-lock-v1.md)。MySQL 租约是实时锁权威。
diff --git a/contracts/locks/file-edit-lock-v1.md b/contracts/locks/file-edit-lock-v1.md
new file mode 100644
index 0000000..f955c61
--- /dev/null
+++ b/contracts/locks/file-edit-lock-v1.md
@@ -0,0 +1,38 @@
+# 文件编辑锁契约 v1
+
+## 公共接口
+
+```text
+POST   /api/v1/files/{storage_object_id}/lock
+POST   /api/v1/file-locks/{edit_session_id}/heartbeat
+DELETE /api/v1/file-locks/{edit_session_id}
+```
+
+三个接口均要求 `X-User-ID` 和 `X-Workspace-ID`。加锁成功返回一次性原始
+`lock_token`；心跳和释放请求体均为：
+
+```json
+{"lock_token": "raw-token-returned-by-acquire"}
+```
+
+原始 token 只由客户端持有，数据库只保存 SHA-256 摘要。
+
+## MySQL 租约
+
+`edit_sessions` 是实时锁权威：
+
+- `session_status=active` 且 `expires_at > now()` 表示锁有效；
+- 同一 `storage_object_id` 同时只能存在一个有效编辑会话；
+- 心跳更新 `last_heartbeat_at` 与 `expires_at`；
+- 主动释放将状态改为 `closed`；
+- 后台清理将超时租约改为 `expired`。
+
+加锁、心跳和释放都在数据库事务中校验 `edit_session_id + lock_token_hash`。
+部署时 Runtime 保持单副本；若扩展到多副本，应为加锁查询增加数据库行锁或唯一
+租约表约束。
+
+## 状态与错误
+
+- 冲突返回 HTTP 409、错误码 `FILE_LOCK_CONFLICT`，并包含当前编辑者和租约到期时间；
+- 错误 token 返回 HTTP 403，且不得续期或释放现有锁；
+- 浏览器建议每 15 秒心跳，默认租约为 45 秒。
diff --git a/contracts/openapi/README.md b/contracts/openapi/README.md
new file mode 100644
index 0000000..cfc99f3
--- /dev/null
+++ b/contracts/openapi/README.md
@@ -0,0 +1,11 @@
+# OpenAPI 契约
+
+- `platform-api-v1.yaml`：浏览器访问的公共业务接口。
+- `demo-core-extension-v1.yaml`：第 15 小步冻结的 Demo 目标扩展接口；
+  与 `platform-api-v1.yaml` 合并后构成完整公共 API v1。
+- `storage-api-internal-v1.yaml`：Storage Service 内部接口。
+- `runtime-api-internal-v1.yaml`：Runtime Manager 内部接口。
+
+现有服务契约由对应 FastAPI 应用生成；目标扩展契约先冻结、后实现，不能
+标记为已上线。所有文件均纳入结构校验。公共接口统一使用 `/api/v1`，
+内部服务接口统一使用 `/internal/v1`。
diff --git a/contracts/openapi/demo-core-extension-v1.yaml b/contracts/openapi/demo-core-extension-v1.yaml
new file mode 100644
index 0000000..d81930e
--- /dev/null
+++ b/contracts/openapi/demo-core-extension-v1.yaml
@@ -0,0 +1,1093 @@
+openapi: 3.1.0
+info:
+  title: Model Platform Demo Core Extension
+  version: 1.0.0
+  description: |
+    第 15 小步冻结的快速 Demo 目标契约。此文件只描述尚待实现的公共接口；
+    已实现的脚本、稳定版本详情、文件锁和数据资源接口继续以
+    platform-api-v1.yaml 为准。两个文件共同组成 Demo 公共 API v1。
+    当前身份仍使用 X-User-ID 与 X-Workspace-ID，后续替换 JWT 时不改变业务 DTO。
+x-implementation-status: frozen-target
+paths:
+  /api/v1/session-context:
+    get:
+      tags: [context]
+      operationId: getSessionContext
+      summary: 获取当前用户、Workspace 和可切换上下文
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+      responses:
+        '200':
+          description: 当前演示上下文
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/SessionContextResponse'
+        '403':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/jupyter/access-tickets:
+    post:
+      tags: [jupyter]
+      operationId: createJupyterAccessTicket
+      x-implementation-status: implemented-step16
+      summary: 为已加锁编辑会话签发短期 Jupyter 访问票据
+      description: |
+        必须校验 edit_session_id、用户、Workspace 和 lock_token。
+        成功响应同时设置 HttpOnly、SameSite=Lax、Path=/jupyter/ 的
+        jupyter_access Cookie，浏览器不得获得 Jupyter 内部服务 token。
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateJupyterAccessTicketRequest'
+      responses:
+        '201':
+          description: 访问票据已签发
+          headers:
+            Set-Cookie:
+              schema:
+                type: string
+              description: jupyter_access HttpOnly Cookie
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/JupyterAccessTicketResponse'
+        '403':
+          $ref: '#/components/responses/ErrorResponse'
+        '409':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/versions:
+    get:
+      tags: [versions]
+      operationId: listStableVersions
+      summary: 获取调度画布可用的稳定版本
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - name: keyword
+          in: query
+          required: false
+          schema:
+            type: string
+            maxLength: 100
+        - name: script_type
+          in: query
+          required: false
+          schema:
+            type: string
+            enum: [python, notebook]
+        - name: limit
+          in: query
+          required: false
+          schema:
+            type: integer
+            minimum: 1
+            maximum: 200
+            default: 100
+      responses:
+        '200':
+          description: 当前 Workspace 可见稳定版本
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/StableVersionListResponse'
+        '403':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedules:
+    get:
+      tags: [schedules]
+      operationId: listSchedules
+      summary: 查询调度方案
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - name: keyword
+          in: query
+          required: false
+          schema:
+            type: string
+            maxLength: 100
+        - name: enabled
+          in: query
+          required: false
+          schema:
+            type: boolean
+      responses:
+        '200':
+          description: 调度方案列表
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleListResponse'
+        '403':
+          $ref: '#/components/responses/ErrorResponse'
+    post:
+      tags: [schedules]
+      operationId: createSchedule
+      summary: 创建调度方案及完整 DAG
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - $ref: '#/components/parameters/IdempotencyKey'
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateScheduleRequest'
+      responses:
+        '201':
+          description: 调度方案已创建
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleResponse'
+        '409':
+          $ref: '#/components/responses/ErrorResponse'
+        '422':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedules/preview:
+    post:
+      tags: [schedules]
+      operationId: previewScheduleCron
+      summary: 校验 Cron 并预览未来执行时间
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CronPreviewRequest'
+      responses:
+        '200':
+          description: Cron 有效
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/CronPreviewResponse'
+        '422':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedules/{schedule_id}:
+    parameters:
+      - $ref: '#/components/parameters/ScheduleId'
+    get:
+      tags: [schedules]
+      operationId: getSchedule
+      summary: 获取调度方案及完整 DAG
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+      responses:
+        '200':
+          description: 调度方案详情
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleResponse'
+        '404':
+          $ref: '#/components/responses/ErrorResponse'
+    put:
+      tags: [schedules]
+      operationId: updateSchedule
+      summary: 使用 workflow_version 乐观锁替换调度方案和 DAG
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - $ref: '#/components/parameters/IdempotencyKey'
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/UpdateScheduleRequest'
+      responses:
+        '200':
+          description: 调度方案已更新，workflow_version 已递增
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleResponse'
+        '404':
+          $ref: '#/components/responses/ErrorResponse'
+        '409':
+          $ref: '#/components/responses/ErrorResponse'
+        '412':
+          $ref: '#/components/responses/ErrorResponse'
+        '422':
+          $ref: '#/components/responses/ErrorResponse'
+    delete:
+      tags: [schedules]
+      operationId: deleteSchedule
+      summary: 软删除调度方案并保留历史运行
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+      responses:
+        '200':
+          description: 调度方案已删除
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleResponse'
+        '404':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedules/{schedule_id}/run:
+    post:
+      tags: [schedule-runs]
+      operationId: runScheduleNow
+      summary: 为当前 workflow_version 创建一次立即运行
+      parameters:
+        - $ref: '#/components/parameters/ScheduleId'
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - $ref: '#/components/parameters/IdempotencyKey'
+      requestBody:
+        required: false
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/RunScheduleRequest'
+      responses:
+        '202':
+          description: 运行事件已进入 Transactional Outbox
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleRunResponse'
+        '404':
+          $ref: '#/components/responses/ErrorResponse'
+        '409':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedules/{schedule_id}/enable:
+    post:
+      tags: [schedules]
+      operationId: enableSchedule
+      summary: 启用 Cron 调度
+      parameters:
+        - $ref: '#/components/parameters/ScheduleId'
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - $ref: '#/components/parameters/IdempotencyKey'
+      responses:
+        '200':
+          description: 调度已启用
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleResponse'
+        '404':
+          $ref: '#/components/responses/ErrorResponse'
+        '409':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedules/{schedule_id}/disable:
+    post:
+      tags: [schedules]
+      operationId: disableSchedule
+      summary: 暂停 Cron 调度
+      parameters:
+        - $ref: '#/components/parameters/ScheduleId'
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - $ref: '#/components/parameters/IdempotencyKey'
+      responses:
+        '200':
+          description: 调度已暂停
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleResponse'
+        '404':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedule-runs:
+    get:
+      tags: [schedule-runs]
+      operationId: listScheduleRuns
+      summary: 查询最近调度运行
+      parameters:
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - name: schedule_id
+          in: query
+          required: false
+          schema:
+            $ref: '#/components/schemas/Ulid'
+        - name: status
+          in: query
+          required: false
+          schema:
+            $ref: '#/components/schemas/RunStatus'
+        - name: limit
+          in: query
+          required: false
+          schema:
+            type: integer
+            minimum: 1
+            maximum: 200
+            default: 50
+      responses:
+        '200':
+          description: 最近运行列表
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleRunListResponse'
+        '403':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedule-runs/{run_id}:
+    get:
+      tags: [schedule-runs]
+      operationId: getScheduleRun
+      summary: 获取运行及各节点状态
+      parameters:
+        - $ref: '#/components/parameters/RunId'
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+      responses:
+        '200':
+          description: 调度运行详情
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleRunResponse'
+        '404':
+          $ref: '#/components/responses/ErrorResponse'
+
+  /api/v1/schedule-runs/{run_id}/cancel:
+    post:
+      tags: [schedule-runs]
+      operationId: cancelScheduleRun
+      summary: 请求取消尚未结束的调度运行
+      parameters:
+        - $ref: '#/components/parameters/RunId'
+        - $ref: '#/components/parameters/XUserId'
+        - $ref: '#/components/parameters/XWorkspaceId'
+        - $ref: '#/components/parameters/XRequestId'
+        - $ref: '#/components/parameters/IdempotencyKey'
+      responses:
+        '202':
+          description: 取消请求已接受
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ScheduleRunResponse'
+        '404':
+          $ref: '#/components/responses/ErrorResponse'
+        '409':
+          $ref: '#/components/responses/ErrorResponse'
+
+components:
+  parameters:
+    XUserId:
+      name: X-User-ID
+      in: header
+      required: true
+      schema:
+        $ref: '#/components/schemas/Ulid'
+    XWorkspaceId:
+      name: X-Workspace-ID
+      in: header
+      required: true
+      schema:
+        $ref: '#/components/schemas/Ulid'
+    XRequestId:
+      name: X-Request-ID
+      in: header
+      required: false
+      schema:
+        type: string
+        minLength: 1
+        maxLength: 64
+    IdempotencyKey:
+      name: Idempotency-Key
+      in: header
+      required: true
+      schema:
+        type: string
+        minLength: 8
+        maxLength: 128
+    ScheduleId:
+      name: schedule_id
+      in: path
+      required: true
+      schema:
+        $ref: '#/components/schemas/Ulid'
+    RunId:
+      name: run_id
+      in: path
+      required: true
+      schema:
+        $ref: '#/components/schemas/Ulid'
+
+  responses:
+    ErrorResponse:
+      description: 标准错误响应
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/ErrorEnvelope'
+
+  schemas:
+    Ulid:
+      type: string
+      minLength: 26
+      maxLength: 26
+      pattern: '^[0-9A-HJKMNP-TV-Z]{26}$'
+
+    UtcDateTime:
+      type: string
+      format: date-time
+
+    RunStatus:
+      type: string
+      enum: [queued, running, succeeded, failed, cancelled, timed_out]
+
+    NodeRunStatus:
+      type: string
+      enum: [queued, running, succeeded, failed, skipped, cancelled, timed_out]
+
+    ErrorEnvelope:
+      type: object
+      additionalProperties: false
+      required: [request_id, error]
+      properties:
+        request_id:
+          type: string
+        error:
+          type: object
+          additionalProperties: false
+          required: [code, message, retryable, details]
+          properties:
+            code:
+              type: string
+              pattern: '^[A-Z][A-Z0-9_]+$'
+            message:
+              type: string
+            retryable:
+              type: boolean
+            details:
+              type: object
+
+    UserSummary:
+      type: object
+      additionalProperties: false
+      required: [user_id, username, display_name, role_code]
+      properties:
+        user_id:
+          $ref: '#/components/schemas/Ulid'
+        username:
+          type: string
+        display_name:
+          type: string
+        role_code:
+          type: string
+
+    WorkspaceSummary:
+      type: object
+      additionalProperties: false
+      required: [workspace_id, workspace_code, workspace_name]
+      properties:
+        workspace_id:
+          $ref: '#/components/schemas/Ulid'
+        workspace_code:
+          type: string
+        workspace_name:
+          type: string
+
+    SessionContextResponse:
+      type: object
+      additionalProperties: false
+      required: [request_id, data, meta]
+      properties:
+        request_id:
+          type: string
+        data:
+          type: object
+          additionalProperties: false
+          required: [current_user, current_workspace, workspaces, workspace_members]
+          properties:
+            current_user:
+              $ref: '#/components/schemas/UserSummary'
+            current_workspace:
+              $ref: '#/components/schemas/WorkspaceSummary'
+            workspaces:
+              type: array
+              items:
+                $ref: '#/components/schemas/WorkspaceSummary'
+            workspace_members:
+              type: array
+              items:
+                $ref: '#/components/schemas/UserSummary'
+        meta:
+          type: object
+
+    CreateJupyterAccessTicketRequest:
+      type: object
+      additionalProperties: false
+      required: [edit_session_id, lock_token]
+      properties:
+        edit_session_id:
+          $ref: '#/components/schemas/Ulid'
+        lock_token:
+          type: string
+          minLength: 32
+          maxLength: 256
+
+    JupyterAccessTicketResponse:
+      type: object
+      additionalProperties: false
+      required: [request_id, data, meta]
+      properties:
+        request_id:
+          type: string
+        data:
+          type: object
+          additionalProperties: false
+          required: [edit_session_id, jupyter_url, expires_at]
+          properties:
+            edit_session_id:
+              $ref: '#/components/schemas/Ulid'
+            jupyter_url:
+              type: string
+              pattern: '^/jupyter/'
+            expires_at:
+              $ref: '#/components/schemas/UtcDateTime'
+        meta:
+          type: object
+
+    StableVersionSummary:
+      type: object
+      additionalProperties: false
+      required:
+        - versions_id
+        - script_id
+        - script_name
+        - script_type
+        - version_label
+        - artifact_object_id
+        - source_path
+        - visibility
+        - created_by
+        - created_at
+      properties:
+        versions_id:
+          $ref: '#/components/schemas/Ulid'
+        script_id:
+          $ref: '#/components/schemas/Ulid'
+        script_name:
+          type: string
+        script_type:
+          type: string
+          enum: [python, notebook]
+        version_label:
+          type: string
+        artifact_object_id:
+          $ref: '#/components/schemas/Ulid'
+        source_path:
+          type: string
+        visibility:
+          type: string
+          enum: [private, workspace, public]
+        created_by:
+          $ref: '#/components/schemas/Ulid'
+        created_at:
+          $ref: '#/components/schemas/UtcDateTime'
+
+    StableVersionListResponse:
+      type: object
+      additionalProperties: false
+      required: [request_id, data, meta]
+      properties:
+        request_id:
+          type: string
+        data:
+          type: array
+          items:
+            $ref: '#/components/schemas/StableVersionSummary'
+        meta:
+          type: object
+          required: [count]
+          properties:
+            count:
+              type: integer
+              minimum: 0
+
+    ScheduleNodeInput:
+      type: object
+      required:
+        - node_key
+        - node_name
+        - versions_id
+        - timeout_seconds
+        - retry_count
+        - retry_interval_sec
+        - position_x
+        - position_y
+        - arguments
+      properties:
+        node_key:
+          type: string
+          minLength: 1
+          maxLength: 64
+          pattern: '^[A-Za-z0-9_-]+$'
+        node_name:
+          type: string
+          minLength: 1
+          maxLength: 255
+        versions_id:
+          $ref: '#/components/schemas/Ulid'
+        timeout_seconds:
+          type: integer
+          minimum: 1
+          maximum: 86400
+          default: 600
+        retry_count:
+          type: integer
+          minimum: 0
+          maximum: 10
+          default: 0
+        retry_interval_sec:
+          type: integer
+          minimum: 0
+          maximum: 3600
+          default: 5
+        position_x:
+          type: number
+        position_y:
+          type: number
+        arguments:
+          type: array
+          maxItems: 100
+          items:
+            type: string
+            maxLength: 1000
+
+    ScheduleEdgeInput:
+      type: object
+      required: [source_node_key, target_node_key]
+      properties:
+        source_node_key:
+          type: string
+          minLength: 1
+          maxLength: 64
+        target_node_key:
+          type: string
+          minLength: 1
+          maxLength: 64
+
+    ScheduleDefinitionBase:
+      type: object
+      required:
+        - schedule_name
+        - trigger_type
+        - timezone
+        - max_concurrency
+        - failure_policy
+        - nodes
+        - edges
+      properties:
+        schedule_name:
+          type: string
+          minLength: 1
+          maxLength: 255
+        description:
+          type: [string, 'null']
+          maxLength: 1000
+        trigger_type:
+          type: string
+          enum: [manual, cron, api]
+          default: cron
+        cron_expression:
+          type: [string, 'null']
+          maxLength: 128
+        timezone:
+          type: string
+          minLength: 1
+          maxLength: 64
+          default: Asia/Shanghai
+        max_concurrency:
+          type: integer
+          minimum: 1
+          maximum: 100
+          default: 1
+        failure_policy:
+          type: string
+          enum: [stop, continue]
+          default: stop
+        nodes:
+          type: array
+          minItems: 1
+          maxItems: 100
+          items:
+            $ref: '#/components/schemas/ScheduleNodeInput'
+        edges:
+          type: array
+          maxItems: 500
+          items:
+            $ref: '#/components/schemas/ScheduleEdgeInput'
+
+    CreateScheduleRequest:
+      unevaluatedProperties: false
+      allOf:
+        - $ref: '#/components/schemas/ScheduleDefinitionBase'
+
+    UpdateScheduleRequest:
+      unevaluatedProperties: false
+      allOf:
+        - $ref: '#/components/schemas/ScheduleDefinitionBase'
+        - type: object
+          required: [workflow_version]
+          properties:
+            workflow_version:
+              type: integer
+              minimum: 1
+
+    ScheduleNode:
+      unevaluatedProperties: false
+      allOf:
+        - $ref: '#/components/schemas/ScheduleNodeInput'
+        - type: object
+          required: [node_id]
+          properties:
+            node_id:
+              $ref: '#/components/schemas/Ulid'
+
+    ScheduleEdge:
+      unevaluatedProperties: false
+      allOf:
+        - $ref: '#/components/schemas/ScheduleEdgeInput'
+        - type: object
+          required: [edge_id, source_node_id, target_node_id]
+          properties:
+            edge_id:
+              $ref: '#/components/schemas/Ulid'
+            source_node_id:
+              $ref: '#/components/schemas/Ulid'
+            target_node_id:
+              $ref: '#/components/schemas/Ulid'
+
+    Schedule:
+      type: object
+      additionalProperties: false
+      required:
+        - schedule_id
+        - workspace_id
+        - schedule_name
+        - trigger_type
+        - timezone
+        - enabled
+        - workflow_version
+        - max_concurrency
+        - failure_policy
+        - nodes
+        - edges
+        - created_by
+        - updated_by
+        - created_at
+        - updated_at
+      properties:
+        schedule_id:
+          $ref: '#/components/schemas/Ulid'
+        workspace_id:
+          $ref: '#/components/schemas/Ulid'
+        schedule_name:
+          type: string
+        description:
+          type: [string, 'null']
+        trigger_type:
+          type: string
+          enum: [manual, cron, api]
+        cron_expression:
+          type: [string, 'null']
+        timezone:
+          type: string
+        enabled:
+          type: boolean
+        workflow_version:
+          type: integer
+          minimum: 1
+        max_concurrency:
+          type: integer
+        failure_policy:
+          type: string
+          enum: [stop, continue]
+        next_run_at:
+          type: [string, 'null']
+          format: date-time
+        last_run_at:
+          type: [string, 'null']
+          format: date-time
+        nodes:
+          type: array
+          items:
+            $ref: '#/components/schemas/ScheduleNode'
+        edges:
+          type: array
+          items:
+            $ref: '#/components/schemas/ScheduleEdge'
+        created_by:
+          $ref: '#/components/schemas/Ulid'
+        updated_by:
+          $ref: '#/components/schemas/Ulid'
+        created_at:
+          $ref: '#/components/schemas/UtcDateTime'
+        updated_at:
+          $ref: '#/components/schemas/UtcDateTime'
+
+    ScheduleResponse:
+      type: object
+      additionalProperties: false
+      required: [request_id, data, meta]
+      properties:
+        request_id:
+          type: string
+        data:
+          $ref: '#/components/schemas/Schedule'
+        meta:
+          type: object
+
+    ScheduleListResponse:
+      type: object
+      additionalProperties: false
+      required: [request_id, data, meta]
+      properties:
+        request_id:
+          type: string
+        data:
+          type: array
+          items:
+            $ref: '#/components/schemas/Schedule'
+        meta:
+          type: object
+          required: [count]
+          properties:
+            count:
+              type: integer
+              minimum: 0
+
+    CronPreviewRequest:
+      type: object
+      additionalProperties: false
+      required: [cron_expression, timezone]
+      properties:
+        cron_expression:
+          type: string
+          minLength: 9
+          maxLength: 128
+        timezone:
+          type: string
+          minLength: 1
+          maxLength: 64
+          default: Asia/Shanghai
+        count:
+          type: integer
+          minimum: 1
+          maximum: 20
+          default: 5
+
+    CronPreviewResponse:
+      type: object
+      additionalProperties: false
+      required: [request_id, data, meta]
+      properties:
+        request_id:
+          type: string
+        data:
+          type: object
+          additionalProperties: false
+          required: [cron_expression, timezone, next_runs]
+          properties:
+            cron_expression:
+              type: string
+            timezone:
+              type: string
+            next_runs:
+              type: array
+              items:
+                $ref: '#/components/schemas/UtcDateTime'
+        meta:
+          type: object
+
+    RunScheduleRequest:
+      type: object
+      additionalProperties: false
+      properties:
+        reason:
+          type: string
+          maxLength: 255
+          default: manual_run
+
+    ScheduleRunSummary:
+      type: object
+      required:
+        - run_id
+        - schedule_id
+        - workspace_id
+        - workflow_version
+        - trigger_type
+        - run_status
+        - state_version
+        - queued_at
+      properties:
+        run_id:
+          $ref: '#/components/schemas/Ulid'
+        schedule_id:
+          $ref: '#/components/schemas/Ulid'
+        workspace_id:
+          $ref: '#/components/schemas/Ulid'
+        workflow_version:
+          type: integer
+        trigger_type:
+          type: string
+          enum: [manual, cron, api, retry]
+        run_status:
+          $ref: '#/components/schemas/RunStatus'
+        state_version:
+          type: integer
+          minimum: 0
+        queued_at:
+          $ref: '#/components/schemas/UtcDateTime'
+        started_at:
+          type: [string, 'null']
+          format: date-time
+        finished_at:
+          type: [string, 'null']
+          format: date-time
+        duration_ms:
+          type: [integer, 'null']
+          minimum: 0
+        error_code:
+          type: [string, 'null']
+        error_message:
+          type: [string, 'null']
+        logs_object_id:
+          oneOf:
+            - $ref: '#/components/schemas/Ulid'
+            - type: 'null'
+        result_object_id:
+          oneOf:
+            - $ref: '#/components/schemas/Ulid'
+            - type: 'null'
+
+    ScheduleNodeRun:
+      type: object
+      additionalProperties: false
+      required:
+        - node_run_id
+        - run_id
+        - node_id
+        - versions_id
+        - attempt_no
+        - node_status
+        - state_version
+      properties:
+        node_run_id:
+          $ref: '#/components/schemas/Ulid'
+        run_id:
+          $ref: '#/components/schemas/Ulid'
+        node_id:
+          $ref: '#/components/schemas/Ulid'
+        versions_id:
+          $ref: '#/components/schemas/Ulid'
+        attempt_no:
+          type: integer
+          minimum: 1
+        node_status:
+          $ref: '#/components/schemas/NodeRunStatus'
+        state_version:
+          type: integer
+          minimum: 0
+        started_at:
+          type: [string, 'null']
+          format: date-time
+        finished_at:
+          type: [string, 'null']
+          format: date-time
+        duration_ms:
+          type: [integer, 'null']
+          minimum: 0
+        exit_code:
+          type: [integer, 'null']
+        message:
+          type: [string, 'null']
+        logs_object_id:
+          oneOf:
+            - $ref: '#/components/schemas/Ulid'
+            - type: 'null'
+        result_object_id:
+          oneOf:
+            - $ref: '#/components/schemas/Ulid'
+            - type: 'null'
+
+    ScheduleRunDetail:
+      unevaluatedProperties: false
+      allOf:
+        - $ref: '#/components/schemas/ScheduleRunSummary'
+        - type: object
+          required: [node_runs]
+          properties:
+            node_runs:
+              type: array
+              items:
+                $ref: '#/components/schemas/ScheduleNodeRun'
+
+    ScheduleRunResponse:
+      type: object
+      additionalProperties: false
+      required: [request_id, data, meta]
+      properties:
+        request_id:
+          type: string
+        data:
+          $ref: '#/components/schemas/ScheduleRunDetail'
+        meta:
+          type: object
+
+    ScheduleRunListResponse:
+      type: object
+      additionalProperties: false
+      required: [request_id, data, meta]
+      properties:
+        request_id:
+          type: string
+        data:
+          type: array
+          items:
+            $ref: '#/components/schemas/ScheduleRunSummary'
+        meta:
+          type: object
+          required: [count]
+          properties:
+            count:
+              type: integer
+              minimum: 0
diff --git a/contracts/openapi/platform-api-v1.yaml b/contracts/openapi/platform-api-v1.yaml
new file mode 100644
index 0000000..3cb378d
--- /dev/null
+++ b/contracts/openapi/platform-api-v1.yaml
@@ -0,0 +1,3080 @@
+openapi: 3.1.0
+info:
+  title: platform-api service
+  version: 0.1.0
+paths:
+  /:
+    get:
+      summary: Root
+      operationId: root__get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Root  Get
+  /health/live:
+    get:
+      summary: Live
+      operationId: live_health_live_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Live Health Live Get
+  /api/v1/health:
+    get:
+      summary: Public Health
+      operationId: public_health_api_v1_health_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Public Health Api V1 Health Get
+  /health/ready:
+    get:
+      summary: Ready
+      operationId: ready_health_ready_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties: true
+                type: object
+                title: Response Ready Health Ready Get
+  /api/v1/files/{storage_object_id}/lock:
+    post:
+      tags:
+      - file-locks
+      summary: Acquire File Lock
+      operationId: acquire_file_lock_api_v1_files__storage_object_id__lock_post
+      parameters:
+      - name: storage_object_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Storage Object Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema: {}
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/file-locks/{edit_session_id}/heartbeat:
+    post:
+      tags:
+      - file-locks
+      summary: Heartbeat File Lock
+      operationId: heartbeat_file_lock_api_v1_file_locks__edit_session_id__heartbeat_post
+      parameters:
+      - name: edit_session_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Edit Session Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/FileLockTokenRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema: {}
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/file-locks/{edit_session_id}:
+    delete:
+      tags:
+      - file-locks
+      summary: Release File Lock
+      operationId: release_file_lock_api_v1_file_locks__edit_session_id__delete
+      parameters:
+      - name: edit_session_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Edit Session Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/FileLockTokenRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema: {}
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/jupyter/access-tickets:
+    post:
+      tags:
+      - jupyter
+      summary: Create Jupyter Access Ticket
+      operationId: create_jupyter_access_ticket_api_v1_jupyter_access_tickets_post
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateJupyterAccessTicketRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema: {}
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/data-resources/uploads:
+    post:
+      tags:
+      - data-resources
+      summary: Create Resource Upload
+      operationId: create_resource_upload_api_v1_data_resources_uploads_post
+      parameters:
+      - name: Idempotency-Key
+        in: header
+        required: true
+        schema:
+          type: string
+          minLength: 8
+          maxLength: 128
+          title: Idempotency-Key
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateResourceUploadRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Resource Upload Api V1 Data Resources Uploads Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/data-resources/uploads/{upload_id}/complete:
+    post:
+      tags:
+      - data-resources
+      summary: Complete Resource Upload
+      operationId: complete_resource_upload_api_v1_data_resources_uploads__upload_id__complete_post
+      parameters:
+      - name: upload_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Upload Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CompleteResourceUploadRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Complete Resource Upload Api V1 Data Resources Uploads  Upload Id  Complete
+                  Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/data-resources:
+    get:
+      tags:
+      - data-resources
+      summary: List Resources
+      operationId: list_resources_api_v1_data_resources_get
+      parameters:
+      - name: visibility
+        in: query
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: Visibility
+      - name: keyword
+        in: query
+        required: false
+        schema:
+          anyOf:
+          - type: string
+            maxLength: 100
+          - type: 'null'
+          title: Keyword
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response List Resources Api V1 Data Resources Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/data-resources/{resource_id}:
+    get:
+      tags:
+      - data-resources
+      summary: Get Resource
+      operationId: get_resource_api_v1_data_resources__resource_id__get
+      parameters:
+      - name: resource_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Resource Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Get Resource Api V1 Data Resources  Resource Id  Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      tags:
+      - data-resources
+      summary: Delete Resource
+      operationId: delete_resource_api_v1_data_resources__resource_id__delete
+      parameters:
+      - name: resource_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Resource Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Resource Api V1 Data Resources  Resource Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/data-resources/{resource_id}/download-url:
+    post:
+      tags:
+      - data-resources
+      summary: Resource Download Url
+      operationId: resource_download_url_api_v1_data_resources__resource_id__download_url_post
+      parameters:
+      - name: resource_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Resource Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/DownloadUrlRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Resource Download Url Api V1 Data Resources  Resource Id  Download Url
+                  Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedules/{schedule_id}/run:
+    post:
+      tags:
+      - schedule-runs
+      summary: Run Schedule Now
+      operationId: run_schedule_now_api_v1_schedules__schedule_id__run_post
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: Idempotency-Key
+        in: header
+        required: true
+        schema:
+          type: string
+          title: Idempotency-Key
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        content:
+          application/json:
+            schema:
+              anyOf:
+              - $ref: '#/components/schemas/RunScheduleRequest'
+              - type: 'null'
+              title: Payload
+      responses:
+        '202':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Run Schedule Now Api V1 Schedules  Schedule Id  Run Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedule-runs:
+    get:
+      tags:
+      - schedule-runs
+      summary: List Schedule Runs
+      operationId: list_schedule_runs_api_v1_schedule_runs_get
+      parameters:
+      - name: schedule_id
+        in: query
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: Schedule Id
+      - name: status
+        in: query
+        required: false
+        schema:
+          anyOf:
+          - enum:
+            - queued
+            - running
+            - succeeded
+            - failed
+            - cancelled
+            - timed_out
+            type: string
+          - type: 'null'
+          title: Status
+      - name: limit
+        in: query
+        required: false
+        schema:
+          type: integer
+          maximum: 200
+          minimum: 1
+          default: 50
+          title: Limit
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response List Schedule Runs Api V1 Schedule Runs Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedule-runs/{run_id}:
+    get:
+      tags:
+      - schedule-runs
+      summary: Get Schedule Run
+      operationId: get_schedule_run_api_v1_schedule_runs__run_id__get
+      parameters:
+      - name: run_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Run Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Get Schedule Run Api V1 Schedule Runs  Run Id  Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/cron/preview:
+    post:
+      tags:
+      - schedules
+      summary: Preview Cron
+      operationId: preview_cron_api_v1_cron_preview_post
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CronPreviewRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Preview Cron Api V1 Cron Preview Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedule-artifacts:
+    get:
+      tags:
+      - schedules
+      summary: List Schedule Artifacts
+      operationId: list_schedule_artifacts_api_v1_schedule_artifacts_get
+      parameters:
+      - name: limit
+        in: query
+        required: false
+        schema:
+          type: integer
+          maximum: 500
+          minimum: 1
+          default: 100
+          title: Limit
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response List Schedule Artifacts Api V1 Schedule Artifacts Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedules:
+    get:
+      tags:
+      - schedules
+      summary: List Schedules
+      operationId: list_schedules_api_v1_schedules_get
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response List Schedules Api V1 Schedules Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    post:
+      tags:
+      - schedules
+      summary: Create Schedule
+      operationId: create_schedule_api_v1_schedules_post
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateScheduleRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Schedule Api V1 Schedules Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedules/{schedule_id}:
+    get:
+      tags:
+      - schedules
+      summary: Get Schedule
+      operationId: get_schedule_api_v1_schedules__schedule_id__get
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Get Schedule Api V1 Schedules  Schedule Id  Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    patch:
+      tags:
+      - schedules
+      summary: Update Schedule
+      operationId: update_schedule_api_v1_schedules__schedule_id__patch
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/UpdateScheduleRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Update Schedule Api V1 Schedules  Schedule Id  Patch
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    put:
+      tags:
+      - schedules
+      summary: Update Schedule
+      operationId: update_schedule_api_v1_schedules__schedule_id__put
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/UpdateScheduleRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Update Schedule Api V1 Schedules  Schedule Id  Put
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      tags:
+      - schedules
+      summary: Delete Schedule
+      operationId: delete_schedule_api_v1_schedules__schedule_id__delete
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/WorkflowVersionRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Schedule Api V1 Schedules  Schedule Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedules/{schedule_id}/nodes:
+    post:
+      tags:
+      - schedules
+      summary: Create Schedule Node
+      operationId: create_schedule_node_api_v1_schedules__schedule_id__nodes_post
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateScheduleNodeRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Schedule Node Api V1 Schedules  Schedule Id  Nodes Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedules/{schedule_id}/nodes/{node_id}:
+    put:
+      tags:
+      - schedules
+      summary: Update Schedule Node
+      operationId: update_schedule_node_api_v1_schedules__schedule_id__nodes__node_id__put
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: node_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Node Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/UpdateScheduleNodeRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Update Schedule Node Api V1 Schedules  Schedule Id  Nodes  Node Id  Put
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      tags:
+      - schedules
+      summary: Delete Schedule Node
+      operationId: delete_schedule_node_api_v1_schedules__schedule_id__nodes__node_id__delete
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: node_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Node Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/WorkflowVersionRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Schedule Node Api V1 Schedules  Schedule Id  Nodes  Node Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedules/{schedule_id}/edges:
+    post:
+      tags:
+      - schedules
+      summary: Create Schedule Edge
+      operationId: create_schedule_edge_api_v1_schedules__schedule_id__edges_post
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateScheduleEdgeRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Schedule Edge Api V1 Schedules  Schedule Id  Edges Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedules/{schedule_id}/edges/{edge_id}:
+    put:
+      tags:
+      - schedules
+      summary: Update Schedule Edge
+      operationId: update_schedule_edge_api_v1_schedules__schedule_id__edges__edge_id__put
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: edge_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Edge Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/UpdateScheduleEdgeRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Update Schedule Edge Api V1 Schedules  Schedule Id  Edges  Edge Id  Put
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      tags:
+      - schedules
+      summary: Delete Schedule Edge
+      operationId: delete_schedule_edge_api_v1_schedules__schedule_id__edges__edge_id__delete
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: edge_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Edge Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/WorkflowVersionRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Schedule Edge Api V1 Schedules  Schedule Id  Edges  Edge Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/schedules/{schedule_id}/validate:
+    post:
+      tags:
+      - schedules
+      summary: Validate Schedule
+      operationId: validate_schedule_api_v1_schedules__schedule_id__validate_post
+      parameters:
+      - name: schedule_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Schedule Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Validate Schedule Api V1 Schedules  Schedule Id  Validate Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/scripts:
+    post:
+      tags:
+      - scripts
+      summary: Create Script
+      operationId: create_script_api_v1_scripts_post
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateScriptRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Script Api V1 Scripts Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    get:
+      tags:
+      - scripts
+      summary: List Scripts
+      operationId: list_scripts_api_v1_scripts_get
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response List Scripts Api V1 Scripts Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/scripts/upload:
+    post:
+      tags:
+      - scripts
+      summary: Upload Script
+      operationId: upload_script_api_v1_scripts_upload_post
+      parameters:
+      - name: file_name
+        in: query
+        required: true
+        schema:
+          type: string
+          minLength: 1
+          maxLength: 255
+          title: File Name
+      - name: parent_path
+        in: query
+        required: false
+        schema:
+          type: string
+          maxLength: 1024
+          default: ''
+          title: Parent Path
+      - name: visibility
+        in: query
+        required: false
+        schema:
+          type: string
+          pattern: ^(private|workspace|public)$
+          default: workspace
+          title: Visibility
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Upload Script Api V1 Scripts Upload Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/workspace-tree:
+    get:
+      tags:
+      - scripts
+      summary: Get Workspace Tree
+      operationId: get_workspace_tree_api_v1_workspace_tree_get
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Get Workspace Tree Api V1 Workspace Tree Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/workspace-directories:
+    post:
+      tags:
+      - scripts
+      summary: Create Workspace Directory
+      operationId: create_workspace_directory_api_v1_workspace_directories_post
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateWorkspaceDirectoryRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Workspace Directory Api V1 Workspace Directories Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      tags:
+      - scripts
+      summary: Delete Workspace Directory
+      operationId: delete_workspace_directory_api_v1_workspace_directories_delete
+      parameters:
+      - name: path
+        in: query
+        required: true
+        schema:
+          type: string
+          minLength: 1
+          maxLength: 1024
+          title: Path
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Workspace Directory Api V1 Workspace Directories Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/scripts/{script_id}:
+    get:
+      tags:
+      - scripts
+      summary: Get Script
+      operationId: get_script_api_v1_scripts__script_id__get
+      parameters:
+      - name: script_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Script Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Get Script Api V1 Scripts  Script Id  Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    put:
+      tags:
+      - scripts
+      summary: Update Script
+      operationId: update_script_api_v1_scripts__script_id__put
+      parameters:
+      - name: script_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Script Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/UpdateScriptRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Update Script Api V1 Scripts  Script Id  Put
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      tags:
+      - scripts
+      summary: Delete Script
+      operationId: delete_script_api_v1_scripts__script_id__delete
+      parameters:
+      - name: script_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Script Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Script Api V1 Scripts  Script Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/scripts/{script_id}/versions:
+    post:
+      tags:
+      - scripts
+      summary: Publish Version
+      operationId: publish_version_api_v1_scripts__script_id__versions_post
+      parameters:
+      - name: script_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Script Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/PublishVersionRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Publish Version Api V1 Scripts  Script Id  Versions Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    get:
+      tags:
+      - scripts
+      summary: List Versions
+      operationId: list_versions_api_v1_scripts__script_id__versions_get
+      parameters:
+      - name: script_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Script Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response List Versions Api V1 Scripts  Script Id  Versions Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/versions/{versions_id}:
+    get:
+      tags:
+      - scripts
+      summary: Get Version
+      operationId: get_version_api_v1_versions__versions_id__get
+      parameters:
+      - name: versions_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Versions Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Get Version Api V1 Versions  Versions Id  Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      tags:
+      - scripts
+      summary: Delete Version
+      operationId: delete_version_api_v1_versions__versions_id__delete
+      parameters:
+      - name: versions_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Versions Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Version Api V1 Versions  Versions Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/versions/{versions_id}/download-url:
+    post:
+      tags:
+      - scripts
+      summary: Version Download Url
+      operationId: version_download_url_api_v1_versions__versions_id__download_url_post
+      parameters:
+      - name: versions_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Versions Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/DownloadUrlRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Version Download Url Api V1 Versions  Versions Id  Download Url Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/admin/employees:
+    get:
+      tags:
+      - admin
+      summary: List Employees
+      operationId: list_employees_api_v1_admin_employees_get
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response List Employees Api V1 Admin Employees Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    post:
+      tags:
+      - admin
+      summary: Create Employee
+      operationId: create_employee_api_v1_admin_employees_post
+      parameters:
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/EmployeeCreate'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Employee Api V1 Admin Employees Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /api/v1/admin/employees/{user_id}:
+    patch:
+      tags:
+      - admin
+      summary: Update Employee
+      operationId: update_employee_api_v1_admin_employees__user_id__patch
+      parameters:
+      - name: user_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: User Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/EmployeeUpdate'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Update Employee Api V1 Admin Employees  User Id  Patch
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      tags:
+      - admin
+      summary: Delete Employee
+      operationId: delete_employee_api_v1_admin_employees__user_id__delete
+      parameters:
+      - name: user_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: User Id
+      - name: X-User-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-User-Id
+      - name: X-Workspace-ID
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Workspace-Id
+      - name: X-Request-ID
+        in: header
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: X-Request-Id
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Employee Api V1 Admin Employees  User Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+components:
+  schemas:
+    CompleteResourceUploadRequest:
+      properties:
+        resource_name:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Resource Name
+        description:
+          anyOf:
+          - type: string
+            maxLength: 1000
+          - type: 'null'
+          title: Description
+        visibility:
+          type: string
+          enum:
+          - private
+          - workspace
+          - public
+          title: Visibility
+          default: private
+      additionalProperties: false
+      type: object
+      required:
+      - resource_name
+      title: CompleteResourceUploadRequest
+    CreateJupyterAccessTicketRequest:
+      properties:
+        edit_session_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Edit Session Id
+        lock_token:
+          type: string
+          maxLength: 256
+          minLength: 32
+          title: Lock Token
+      additionalProperties: false
+      type: object
+      required:
+      - edit_session_id
+      - lock_token
+      title: CreateJupyterAccessTicketRequest
+    CreateResourceUploadRequest:
+      properties:
+        file_name:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: File Name
+        content_type:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Content Type
+        expected_size_bytes:
+          type: integer
+          maximum: 104857600.0
+          minimum: 0.0
+          title: Expected Size Bytes
+        expected_hash:
+          anyOf:
+          - type: string
+            maxLength: 64
+            minLength: 64
+          - type: 'null'
+          title: Expected Hash
+      additionalProperties: false
+      type: object
+      required:
+      - file_name
+      - content_type
+      - expected_size_bytes
+      title: CreateResourceUploadRequest
+    CreateScheduleEdgeRequest:
+      properties:
+        workflow_version:
+          type: integer
+          minimum: 1.0
+          title: Workflow Version
+        source_node_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Source Node Id
+        target_node_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Target Node Id
+        condition_expr:
+          anyOf:
+          - type: string
+            maxLength: 1000
+          - type: 'null'
+          title: Condition Expr
+      additionalProperties: false
+      type: object
+      required:
+      - workflow_version
+      - source_node_id
+      - target_node_id
+      title: CreateScheduleEdgeRequest
+    CreateScheduleNodeRequest:
+      properties:
+        workflow_version:
+          type: integer
+          minimum: 1.0
+          title: Workflow Version
+        node_key:
+          type: string
+          maxLength: 64
+          minLength: 1
+          pattern: ^[A-Za-z][A-Za-z0-9_-]*$
+          title: Node Key
+        node_name:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Node Name
+        versions_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Versions Id
+        timeout_seconds:
+          type: integer
+          maximum: 86400.0
+          minimum: 1.0
+          title: Timeout Seconds
+          default: 600
+        retry_count:
+          type: integer
+          maximum: 10.0
+          minimum: 0.0
+          title: Retry Count
+          default: 0
+        retry_interval_sec:
+          type: integer
+          maximum: 3600.0
+          minimum: 0.0
+          title: Retry Interval Sec
+          default: 5
+        position_x:
+          type: number
+          maximum: 100000.0
+          minimum: -100000.0
+          title: Position X
+          default: 0
+        position_y:
+          type: number
+          maximum: 100000.0
+          minimum: -100000.0
+          title: Position Y
+          default: 0
+        arguments_json:
+          additionalProperties: true
+          type: object
+          maxProperties: 100
+          title: Arguments Json
+        env_refs_json:
+          additionalProperties:
+            type: string
+          type: object
+          maxProperties: 100
+          title: Env Refs Json
+      additionalProperties: false
+      type: object
+      required:
+      - workflow_version
+      - node_key
+      - node_name
+      - versions_id
+      title: CreateScheduleNodeRequest
+    CreateScheduleRequest:
+      properties:
+        schedule_name:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Schedule Name
+        description:
+          anyOf:
+          - type: string
+            maxLength: 1000
+          - type: 'null'
+          title: Description
+        trigger_type:
+          type: string
+          enum:
+          - manual
+          - cron
+          - api
+          title: Trigger Type
+          default: cron
+        cron_expression:
+          anyOf:
+          - type: string
+            maxLength: 128
+          - type: 'null'
+          title: Cron Expression
+        timezone:
+          type: string
+          maxLength: 64
+          minLength: 1
+          title: Timezone
+          default: Asia/Shanghai
+        enabled:
+          type: boolean
+          title: Enabled
+          default: false
+        max_concurrency:
+          type: integer
+          maximum: 64.0
+          minimum: 1.0
+          title: Max Concurrency
+          default: 1
+        failure_policy:
+          type: string
+          enum:
+          - stop
+          - continue
+          title: Failure Policy
+          default: stop
+      additionalProperties: false
+      type: object
+      required:
+      - schedule_name
+      title: CreateScheduleRequest
+    CreateScriptRequest:
+      properties:
+        script_name:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Script Name
+        script_type:
+          type: string
+          enum:
+          - python
+          - notebook
+          title: Script Type
+        content:
+          type: string
+          maxLength: 10485760
+          title: Content
+        visibility:
+          type: string
+          enum:
+          - private
+          - workspace
+          - public
+          title: Visibility
+          default: private
+        parent_path:
+          anyOf:
+          - type: string
+            maxLength: 1024
+          - type: 'null'
+          title: Parent Path
+      additionalProperties: false
+      type: object
+      required:
+      - script_name
+      - script_type
+      - content
+      title: CreateScriptRequest
+    CreateWorkspaceDirectoryRequest:
+      properties:
+        directory_name:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Directory Name
+        parent_path:
+          type: string
+          maxLength: 1024
+          title: Parent Path
+          default: ''
+      additionalProperties: false
+      type: object
+      required:
+      - directory_name
+      title: CreateWorkspaceDirectoryRequest
+    CronPreviewRequest:
+      properties:
+        cron_expression:
+          type: string
+          maxLength: 128
+          minLength: 1
+          title: Cron Expression
+        timezone:
+          type: string
+          maxLength: 64
+          minLength: 1
+          title: Timezone
+          default: Asia/Shanghai
+        count:
+          type: integer
+          maximum: 20.0
+          minimum: 1.0
+          title: Count
+          default: 5
+        base_time:
+          anyOf:
+          - type: string
+            format: date-time
+          - type: 'null'
+          title: Base Time
+      additionalProperties: false
+      type: object
+      required:
+      - cron_expression
+      title: CronPreviewRequest
+    DownloadUrlRequest:
+      properties:
+        expires_seconds:
+          type: integer
+          maximum: 3600.0
+          minimum: 30.0
+          title: Expires Seconds
+          default: 300
+      additionalProperties: false
+      type: object
+      title: DownloadUrlRequest
+    EmployeeCreate:
+      properties:
+        username:
+          type: string
+          maxLength: 64
+          minLength: 2
+          title: Username
+        display_name:
+          type: string
+          maxLength: 100
+          minLength: 1
+          title: Display Name
+        email:
+          anyOf:
+          - type: string
+            maxLength: 255
+          - type: 'null'
+          title: Email
+        role_code:
+          type: string
+          enum:
+          - admin
+          - developer
+          title: Role Code
+          default: developer
+      additionalProperties: false
+      type: object
+      required:
+      - username
+      - display_name
+      title: EmployeeCreate
+    EmployeeUpdate:
+      properties:
+        display_name:
+          anyOf:
+          - type: string
+            maxLength: 100
+            minLength: 1
+          - type: 'null'
+          title: Display Name
+        email:
+          anyOf:
+          - type: string
+            maxLength: 255
+          - type: 'null'
+          title: Email
+        role_code:
+          anyOf:
+          - type: string
+            enum:
+            - admin
+            - developer
+          - type: 'null'
+          title: Role Code
+        status:
+          anyOf:
+          - type: string
+            enum:
+            - active
+            - disabled
+            - locked
+          - type: 'null'
+          title: Status
+      additionalProperties: false
+      type: object
+      title: EmployeeUpdate
+    FileLockTokenRequest:
+      properties:
+        lock_token:
+          type: string
+          maxLength: 256
+          minLength: 32
+          title: Lock Token
+      additionalProperties: false
+      type: object
+      required:
+      - lock_token
+      title: FileLockTokenRequest
+    HTTPValidationError:
+      properties:
+        detail:
+          items:
+            $ref: '#/components/schemas/ValidationError'
+          type: array
+          title: Detail
+      type: object
+      title: HTTPValidationError
+    PublishVersionRequest:
+      properties:
+        source_object_id:
+          anyOf:
+          - type: string
+            maxLength: 26
+            minLength: 26
+          - type: 'null'
+          title: Source Object Id
+        release_note:
+          anyOf:
+          - type: string
+            maxLength: 1000
+          - type: 'null'
+          title: Release Note
+        visibility:
+          type: string
+          enum:
+          - private
+          - workspace
+          - public
+          title: Visibility
+          default: workspace
+      additionalProperties: false
+      type: object
+      title: PublishVersionRequest
+    RunScheduleRequest:
+      properties:
+        reason:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Reason
+          default: manual_run
+      additionalProperties: false
+      type: object
+      title: RunScheduleRequest
+    UpdateScheduleEdgeRequest:
+      properties:
+        workflow_version:
+          type: integer
+          minimum: 1.0
+          title: Workflow Version
+        condition_expr:
+          anyOf:
+          - type: string
+            maxLength: 1000
+          - type: 'null'
+          title: Condition Expr
+      additionalProperties: false
+      type: object
+      required:
+      - workflow_version
+      title: UpdateScheduleEdgeRequest
+    UpdateScheduleNodeRequest:
+      properties:
+        workflow_version:
+          type: integer
+          minimum: 1.0
+          title: Workflow Version
+        node_name:
+          anyOf:
+          - type: string
+            maxLength: 255
+            minLength: 1
+          - type: 'null'
+          title: Node Name
+        versions_id:
+          anyOf:
+          - type: string
+            maxLength: 26
+            minLength: 26
+          - type: 'null'
+          title: Versions Id
+        timeout_seconds:
+          anyOf:
+          - type: integer
+            maximum: 86400.0
+            minimum: 1.0
+          - type: 'null'
+          title: Timeout Seconds
+        retry_count:
+          anyOf:
+          - type: integer
+            maximum: 10.0
+            minimum: 0.0
+          - type: 'null'
+          title: Retry Count
+        retry_interval_sec:
+          anyOf:
+          - type: integer
+            maximum: 3600.0
+            minimum: 0.0
+          - type: 'null'
+          title: Retry Interval Sec
+        position_x:
+          anyOf:
+          - type: number
+            maximum: 100000.0
+            minimum: -100000.0
+          - type: 'null'
+          title: Position X
+        position_y:
+          anyOf:
+          - type: number
+            maximum: 100000.0
+            minimum: -100000.0
+          - type: 'null'
+          title: Position Y
+        arguments_json:
+          anyOf:
+          - additionalProperties: true
+            type: object
+            maxProperties: 100
+          - type: 'null'
+          title: Arguments Json
+        env_refs_json:
+          anyOf:
+          - additionalProperties:
+              type: string
+            type: object
+            maxProperties: 100
+          - type: 'null'
+          title: Env Refs Json
+      additionalProperties: false
+      type: object
+      required:
+      - workflow_version
+      title: UpdateScheduleNodeRequest
+    UpdateScheduleRequest:
+      properties:
+        workflow_version:
+          type: integer
+          minimum: 1.0
+          title: Workflow Version
+        schedule_name:
+          anyOf:
+          - type: string
+            maxLength: 255
+            minLength: 1
+          - type: 'null'
+          title: Schedule Name
+        description:
+          anyOf:
+          - type: string
+            maxLength: 1000
+          - type: 'null'
+          title: Description
+        trigger_type:
+          anyOf:
+          - type: string
+            enum:
+            - manual
+            - cron
+            - api
+          - type: 'null'
+          title: Trigger Type
+        cron_expression:
+          anyOf:
+          - type: string
+            maxLength: 128
+          - type: 'null'
+          title: Cron Expression
+        timezone:
+          anyOf:
+          - type: string
+            maxLength: 64
+            minLength: 1
+          - type: 'null'
+          title: Timezone
+        enabled:
+          anyOf:
+          - type: boolean
+          - type: 'null'
+          title: Enabled
+        max_concurrency:
+          anyOf:
+          - type: integer
+            maximum: 64.0
+            minimum: 1.0
+          - type: 'null'
+          title: Max Concurrency
+        failure_policy:
+          anyOf:
+          - type: string
+            enum:
+            - stop
+            - continue
+          - type: 'null'
+          title: Failure Policy
+      additionalProperties: false
+      type: object
+      required:
+      - workflow_version
+      title: UpdateScheduleRequest
+    UpdateScriptRequest:
+      properties:
+        content:
+          type: string
+          maxLength: 10485760
+          title: Content
+      additionalProperties: false
+      type: object
+      required:
+      - content
+      title: UpdateScriptRequest
+    ValidationError:
+      properties:
+        loc:
+          items:
+            anyOf:
+            - type: string
+            - type: integer
+          type: array
+          title: Location
+        msg:
+          type: string
+          title: Message
+        type:
+          type: string
+          title: Error Type
+      type: object
+      required:
+      - loc
+      - msg
+      - type
+      title: ValidationError
+    WorkflowVersionRequest:
+      properties:
+        workflow_version:
+          type: integer
+          minimum: 1.0
+          title: Workflow Version
+      additionalProperties: false
+      type: object
+      required:
+      - workflow_version
+      title: WorkflowVersionRequest
diff --git a/contracts/openapi/runtime-api-internal-v1.yaml b/contracts/openapi/runtime-api-internal-v1.yaml
new file mode 100644
index 0000000..85b7727
--- /dev/null
+++ b/contracts/openapi/runtime-api-internal-v1.yaml
@@ -0,0 +1,699 @@
+openapi: 3.1.0
+info:
+  title: runtime-manager service
+  version: 0.1.0
+paths:
+  /:
+    get:
+      summary: Root
+      operationId: root__get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Root  Get
+  /health/live:
+    get:
+      summary: Live
+      operationId: live_health_live_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Live Health Live Get
+  /api/v1/health:
+    get:
+      summary: Public Health
+      operationId: public_health_api_v1_health_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Public Health Api V1 Health Get
+  /health/ready:
+    get:
+      summary: Ready
+      operationId: ready_health_ready_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties: true
+                type: object
+                title: Response Ready Health Ready Get
+  /internal/v1/file-locks/acquire:
+    post:
+      summary: Acquire File Lock
+      operationId: acquire_file_lock_internal_v1_file_locks_acquire_post
+      parameters:
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/AcquireFileLockRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Acquire File Lock Internal V1 File Locks Acquire Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/file-locks/{edit_session_id}/heartbeat:
+    post:
+      summary: Heartbeat File Lock
+      operationId: heartbeat_file_lock_internal_v1_file_locks__edit_session_id__heartbeat_post
+      parameters:
+      - name: edit_session_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Edit Session Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/FileLockTokenRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Heartbeat File Lock Internal V1 File Locks  Edit Session Id  Heartbeat
+                  Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/file-locks/{edit_session_id}:
+    delete:
+      summary: Release File Lock
+      operationId: release_file_lock_internal_v1_file_locks__edit_session_id__delete
+      parameters:
+      - name: edit_session_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Edit Session Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/FileLockTokenRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Release File Lock Internal V1 File Locks  Edit Session Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/jupyter/access-tickets/{edit_session_id}:
+    post:
+      summary: Create Jupyter Access Ticket
+      operationId: create_jupyter_access_ticket_internal_v1_jupyter_access_tickets__edit_session_id__post
+      parameters:
+      - name: edit_session_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Edit Session Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/FileLockTokenRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Jupyter Access Ticket Internal V1 Jupyter Access Tickets  Edit
+                  Session Id  Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/jupyter/authorize:
+    get:
+      summary: Authorize Jupyter Proxy
+      operationId: authorize_jupyter_proxy_internal_v1_jupyter_authorize_get
+      parameters:
+      - name: X-Original-URI
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Original-Uri
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      - name: jupyter_access
+        in: cookie
+        required: false
+        schema:
+          anyOf:
+          - type: string
+          - type: 'null'
+          title: Jupyter Access
+      responses:
+        '204':
+          description: Successful Response
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/runtimes/ensure:
+    post:
+      summary: Ensure Runtime
+      operationId: ensure_runtime_internal_v1_runtimes_ensure_post
+      parameters:
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/EnsureRuntimeApiRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Ensure Runtime Internal V1 Runtimes Ensure Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/runtimes/{runtime_id}:
+    get:
+      summary: Get Runtime
+      operationId: get_runtime_internal_v1_runtimes__runtime_id__get
+      parameters:
+      - name: runtime_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Runtime Id
+      - name: workspace_id
+        in: query
+        required: true
+        schema:
+          type: string
+          minLength: 26
+          maxLength: 26
+          title: Workspace Id
+      - name: user_id
+        in: query
+        required: true
+        schema:
+          type: string
+          minLength: 26
+          maxLength: 26
+          title: User Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Get Runtime Internal V1 Runtimes  Runtime Id  Get
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+    delete:
+      summary: Stop Runtime
+      operationId: stop_runtime_internal_v1_runtimes__runtime_id__delete
+      parameters:
+      - name: runtime_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Runtime Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/StopRuntimeApiRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Stop Runtime Internal V1 Runtimes  Runtime Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/runtimes/{runtime_id}/restart:
+    post:
+      summary: Restart Runtime
+      operationId: restart_runtime_internal_v1_runtimes__runtime_id__restart_post
+      parameters:
+      - name: runtime_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Runtime Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/RuntimeIdentityRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Restart Runtime Internal V1 Runtimes  Runtime Id  Restart Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/runtimes/{runtime_id}/sessions:
+    post:
+      summary: Create Runtime Session
+      operationId: create_runtime_session_internal_v1_runtimes__runtime_id__sessions_post
+      parameters:
+      - name: runtime_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Runtime Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateRuntimeSessionApiRequest'
+      responses:
+        '201':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Runtime Session Internal V1 Runtimes  Runtime Id  Sessions Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/runtimes/{runtime_id}/sessions/{session_id}:
+    delete:
+      summary: Terminate Runtime Session
+      operationId: terminate_runtime_session_internal_v1_runtimes__runtime_id__sessions__session_id__delete
+      parameters:
+      - name: runtime_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Runtime Id
+      - name: session_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Session Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/RuntimeIdentityRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Terminate Runtime Session Internal V1 Runtimes  Runtime Id  Sessions  Session
+                  Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/health/runtime:
+    get:
+      summary: Internal Health
+      operationId: internal_health_internal_health_runtime_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Internal Health Internal Health Runtime Get
+components:
+  schemas:
+    AcquireFileLockRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        storage_object_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Storage Object Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        request_id:
+          anyOf:
+          - type: string
+            maxLength: 64
+            minLength: 1
+          - type: 'null'
+          title: Request Id
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - storage_object_id
+      - user_id
+      title: AcquireFileLockRequest
+    CreateRuntimeSessionApiRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        request_id:
+          anyOf:
+          - type: string
+            maxLength: 64
+            minLength: 1
+          - type: 'null'
+          title: Request Id
+        storage_object_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Storage Object Id
+        relative_path:
+          type: string
+          maxLength: 1024
+          minLength: 1
+          title: Relative Path
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - user_id
+      - storage_object_id
+      - relative_path
+      title: CreateRuntimeSessionApiRequest
+    EnsureRuntimeApiRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        request_id:
+          anyOf:
+          - type: string
+            maxLength: 64
+            minLength: 1
+          - type: 'null'
+          title: Request Id
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - user_id
+      title: EnsureRuntimeApiRequest
+    FileLockTokenRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        lock_token:
+          type: string
+          maxLength: 256
+          minLength: 32
+          title: Lock Token
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - user_id
+      - lock_token
+      title: FileLockTokenRequest
+    HTTPValidationError:
+      properties:
+        detail:
+          items:
+            $ref: '#/components/schemas/ValidationError'
+          type: array
+          title: Detail
+      type: object
+      title: HTTPValidationError
+    RuntimeIdentityRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        request_id:
+          anyOf:
+          - type: string
+            maxLength: 64
+            minLength: 1
+          - type: 'null'
+          title: Request Id
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - user_id
+      title: RuntimeIdentityRequest
+    StopRuntimeApiRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        request_id:
+          anyOf:
+          - type: string
+            maxLength: 64
+            minLength: 1
+          - type: 'null'
+          title: Request Id
+        reason:
+          type: string
+          maxLength: 64
+          minLength: 1
+          title: Reason
+          default: client_request
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - user_id
+      title: StopRuntimeApiRequest
+    ValidationError:
+      properties:
+        loc:
+          items:
+            anyOf:
+            - type: string
+            - type: integer
+          type: array
+          title: Location
+        msg:
+          type: string
+          title: Message
+        type:
+          type: string
+          title: Error Type
+      type: object
+      required:
+      - loc
+      - msg
+      - type
+      title: ValidationError
diff --git a/contracts/openapi/storage-api-internal-v1.yaml b/contracts/openapi/storage-api-internal-v1.yaml
new file mode 100644
index 0000000..17c3f0f
--- /dev/null
+++ b/contracts/openapi/storage-api-internal-v1.yaml
@@ -0,0 +1,550 @@
+openapi: 3.1.0
+info:
+  title: storage-api service
+  version: 0.1.0
+paths:
+  /:
+    get:
+      summary: Root
+      operationId: root__get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Root  Get
+  /health/live:
+    get:
+      summary: Live
+      operationId: live_health_live_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Live Health Live Get
+  /api/v1/health:
+    get:
+      summary: Public Health
+      operationId: public_health_api_v1_health_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Public Health Api V1 Health Get
+  /health/ready:
+    get:
+      summary: Ready
+      operationId: ready_health_ready_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties: true
+                type: object
+                title: Response Ready Health Ready Get
+  /internal/v1/uploads:
+    post:
+      summary: Create Upload
+      operationId: create_upload_internal_v1_uploads_post
+      parameters:
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CreateUploadRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Upload Internal V1 Uploads Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/uploads/{upload_id}/complete:
+    post:
+      summary: Complete Upload
+      operationId: complete_upload_internal_v1_uploads__upload_id__complete_post
+      parameters:
+      - name: upload_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Upload Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/CompleteUploadRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Complete Upload Internal V1 Uploads  Upload Id  Complete Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/uploads/{upload_id}/abort:
+    post:
+      summary: Abort Upload
+      operationId: abort_upload_internal_v1_uploads__upload_id__abort_post
+      parameters:
+      - name: upload_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Upload Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Abort Upload Internal V1 Uploads  Upload Id  Abort Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/objects:
+    post:
+      summary: Create Server Object
+      operationId: create_server_object_internal_v1_objects_post
+      parameters:
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/ServerObjectRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Server Object Internal V1 Objects Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/workspace-objects:
+    post:
+      summary: Register Workspace Object
+      operationId: register_workspace_object_internal_v1_workspace_objects_post
+      parameters:
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/RegisterWorkspaceObjectRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Register Workspace Object Internal V1 Workspace Objects Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/objects/{storage_object_id}/download-url:
+    post:
+      summary: Create Download Url
+      operationId: create_download_url_internal_v1_objects__storage_object_id__download_url_post
+      parameters:
+      - name: storage_object_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Storage Object Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/DownloadUrlRequest'
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Create Download Url Internal V1 Objects  Storage Object Id  Download Url
+                  Post
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/v1/objects/{storage_object_id}:
+    delete:
+      summary: Delete Object
+      operationId: delete_object_internal_v1_objects__storage_object_id__delete
+      parameters:
+      - name: storage_object_id
+        in: path
+        required: true
+        schema:
+          type: string
+          title: Storage Object Id
+      - name: X-Service-Token
+        in: header
+        required: true
+        schema:
+          type: string
+          title: X-Service-Token
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                type: object
+                additionalProperties: true
+                title: Response Delete Object Internal V1 Objects  Storage Object Id  Delete
+        '422':
+          description: Validation Error
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+  /internal/health/storage:
+    get:
+      summary: Internal Health
+      operationId: internal_health_internal_health_storage_get
+      responses:
+        '200':
+          description: Successful Response
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  type: string
+                type: object
+                title: Response Internal Health Internal Health Storage Get
+components:
+  schemas:
+    CompleteUploadRequest:
+      properties:
+        usage_type:
+          type: string
+          enum:
+          - data_resource
+          - version_artifact
+          - snapshot
+          - run_log
+          - run_result
+          title: Usage Type
+        visibility:
+          type: string
+          enum:
+          - private
+          - workspace
+          - public
+          title: Visibility
+          default: private
+        is_immutable:
+          type: boolean
+          title: Is Immutable
+          default: false
+      additionalProperties: false
+      type: object
+      required:
+      - usage_type
+      title: CompleteUploadRequest
+    CreateUploadRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        usage_type:
+          type: string
+          enum:
+          - data_resource
+          - version_artifact
+          - snapshot
+          - run_log
+          - run_result
+          title: Usage Type
+        file_name:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: File Name
+        content_type:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Content Type
+        expected_size_bytes:
+          type: integer
+          maximum: 104857600.0
+          minimum: 0.0
+          title: Expected Size Bytes
+        expected_hash:
+          anyOf:
+          - type: string
+            maxLength: 64
+            minLength: 64
+          - type: 'null'
+          title: Expected Hash
+        idempotency_key:
+          type: string
+          maxLength: 128
+          minLength: 8
+          title: Idempotency Key
+        url_scope:
+          type: string
+          enum:
+          - public
+          - internal
+          title: Url Scope
+          default: public
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - user_id
+      - usage_type
+      - file_name
+      - content_type
+      - expected_size_bytes
+      - idempotency_key
+      title: CreateUploadRequest
+    DownloadUrlRequest:
+      properties:
+        expires_seconds:
+          type: integer
+          maximum: 3600.0
+          minimum: 30.0
+          title: Expires Seconds
+          default: 300
+      additionalProperties: false
+      type: object
+      title: DownloadUrlRequest
+    HTTPValidationError:
+      properties:
+        detail:
+          items:
+            $ref: '#/components/schemas/ValidationError'
+          type: array
+          title: Detail
+      type: object
+      title: HTTPValidationError
+    RegisterWorkspaceObjectRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        relative_path:
+          type: string
+          maxLength: 1024
+          minLength: 1
+          title: Relative Path
+        usage_type:
+          type: string
+          enum:
+          - working_copy
+          - public_script
+          title: Usage Type
+        visibility:
+          type: string
+          enum:
+          - private
+          - workspace
+          - public
+          title: Visibility
+          default: private
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - user_id
+      - relative_path
+      - usage_type
+      title: RegisterWorkspaceObjectRequest
+    ServerObjectRequest:
+      properties:
+        workspace_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: Workspace Id
+        user_id:
+          type: string
+          maxLength: 26
+          minLength: 26
+          title: User Id
+        usage_type:
+          type: string
+          enum:
+          - data_resource
+          - version_artifact
+          - snapshot
+          - run_log
+          - run_result
+          title: Usage Type
+        file_name:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: File Name
+        content_type:
+          type: string
+          maxLength: 255
+          minLength: 1
+          title: Content Type
+        content_base64:
+          type: string
+          minLength: 1
+          title: Content Base64
+        visibility:
+          type: string
+          enum:
+          - private
+          - workspace
+          - public
+          title: Visibility
+          default: private
+        is_immutable:
+          type: boolean
+          title: Is Immutable
+          default: false
+        idempotency_key:
+          type: string
+          maxLength: 128
+          minLength: 8
+          title: Idempotency Key
+      additionalProperties: false
+      type: object
+      required:
+      - workspace_id
+      - user_id
+      - usage_type
+      - file_name
+      - content_type
+      - content_base64
+      - idempotency_key
+      title: ServerObjectRequest
+    ValidationError:
+      properties:
+        loc:
+          items:
+            anyOf:
+            - type: string
+            - type: integer
+          type: array
+          title: Location
+        msg:
+          type: string
+          title: Message
+        type:
+          type: string
+          title: Error Type
+      type: object
+      required:
+      - loc
+      - msg
+      - type
+      title: ValidationError
diff --git a/contracts/runtime/README.md b/contracts/runtime/README.md
new file mode 100644
index 0000000..4670133
--- /dev/null
+++ b/contracts/runtime/README.md
@@ -0,0 +1,26 @@
+# Runtime Adapter 契约
+
+`runtime_adapter.py` 是 Runtime Manager 与具体运行环境之间的可执行契约。
+
+当前 Compose 环境使用 `SharedJupyterAdapter`。它把共享 Jupyter Server 作为
+首期 Provider，并在 MySQL 中为每个 `Workspace` 建立并复用一个逻辑
+Runtime。每个打开的 Notebook 在该 Runtime 中建立独立 Jupyter Session，
+每个 Session 绑定自己的 Kernel。
+后续 Docker/Kubernetes Provider 必须实现同一 Protocol，公共锁接口和
+`runtime_instances` 状态模型保持不变。
+
+核心约束：
+
+- `ensure_running` 对同一作用域必须幂等；
+- Runtime 的唯一复用作用域是 Workspace，不能按用户重复创建；
+- Runtime 的期望状态、实际状态和租约写入 MySQL；
+- Notebook 对应独立 Jupyter Session/Kernel，其创建和终止只能由 Runtime
+  Manager 调用；
+- Provider 不能依赖 Platform API 的进程内状态；
+- `proxy_base_path` 与 Jupyter 内部 `base_url` 必须一致。
+- Provider 调用必须携带内部服务凭据，不能通过关闭 XSRF 检查规避认证；
+- Workspace 的目录、文件权限必须同时满足 Platform 原子写入和 Jupyter
+  读写，当前 Compose 环境使用共享 Unix 组完成。
+
+Jupyter 浏览器代理、访问票据和 WebSocket 约束见
+`jupyter-proxy-v1.md`。
diff --git a/contracts/runtime/__init__.py b/contracts/runtime/__init__.py
new file mode 100644
index 0000000..22ae10c
--- /dev/null
+++ b/contracts/runtime/__init__.py
@@ -0,0 +1 @@
+"""Runtime adapter contract package."""
diff --git a/contracts/runtime/jupyter-proxy-v1.md b/contracts/runtime/jupyter-proxy-v1.md
new file mode 100644
index 0000000..bb58546
--- /dev/null
+++ b/contracts/runtime/jupyter-proxy-v1.md
@@ -0,0 +1,65 @@
+# Jupyter 代理与访问票据契约 V1
+
+## 1. 浏览器访问流程
+
+1. 前端携带用户、Workspace、`edit_session_id` 和 `lock_token` 调用
+   `POST /api/v1/jupyter/access-tickets`。
+2. Platform API 校验编辑锁、Runtime 与 Jupyter Session 的归属及状态。
+3. 成功后返回 `/jupyter/...` 地址，并设置短期
+   `jupyter_access` Cookie。
+4. 前端在当前平台页面的编辑区内嵌同源 `/jupyter/...` 页面，不新开浏览器
+   标签页。
+5. 内嵌页面经 Nginx 访问 Jupyter HTTP/WebSocket；Nginx 先执行内部鉴权
+   子请求，再把内部 Token 注入上游请求。
+
+一个 Workspace 只建立或复用一个 Jupyter Runtime/Server；同一 Server
+中的每个 Notebook 使用独立 Jupyter Session 和独立 Kernel。
+
+浏览器响应、URL、JavaScript 和日志中都不得出现 Jupyter 内部 Token。
+
+## 2. 访问票据
+
+- 票据绑定：`user_id`、`workspace_id`、`edit_session_id`、
+  `runtime_id`、`jupyter_session_id`。
+- 默认有效期：60 秒；最长不超过 5 分钟。
+- Cookie：`HttpOnly; SameSite=Lax; Path=/jupyter/`，生产环境必须增加
+  `Secure`。
+- 票据只授权当前 Workspace 的 Jupyter 路径，不能跨 Workspace 使用。
+- Jupyter 页面必须与平台使用同一站点入口，并允许同源 iframe 嵌入。
+
+## 3. Nginx 内部鉴权接口
+
+```http
+GET /internal/v1/jupyter/authorize
+Cookie: jupyter_access=<opaque-ticket>
+X-Original-URI: /jupyter/...
+X-Request-ID: <request-id>
+```
+
+该接口只允许 Nginx 在内部网络调用：
+
+- `204`：票据有效，响应头提供上游地址和内部认证信息。
+- `401`：票据缺失、伪造或过期。
+- `403`：用户、Workspace、Session 不匹配，或编辑锁/Runtime 已失效。
+
+成功响应头：
+
+```http
+X-Jupyter-Upstream: http://jupyter:8888
+X-Jupyter-Authorization: token <internal-token>
+X-Workspace-ID: <workspace-id>
+```
+
+Nginx 必须删除客户端传入的 `Authorization`，使用内部鉴权结果重建上游
+认证头。
+
+## 4. WebSocket 约束
+
+- `/jupyter/api/kernels/*/channels` 与其他 WebSocket 路径使用 HTTP/1.1。
+- 转发 `Upgrade`、`Connection`、`Host`、`Origin` 和请求 ID。
+- 关闭代理缓冲，读超时不小于 3600 秒。
+- HTTP 和 WebSocket 使用同一票据校验规则。
+- 连接关闭只断开交互连接，不自动停止 Workspace Runtime。
+- Compose Demo 使用最长 5 分钟票据；前端必须继续发送编辑锁心跳，并在
+  票据到期前重新签发。
+- Jupyter Lab HTML 中出现的内部 Token 必须由 Nginx 在返回浏览器前清除。
diff --git a/contracts/runtime/runtime_adapter.py b/contracts/runtime/runtime_adapter.py
new file mode 100644
index 0000000..478dae0
--- /dev/null
+++ b/contracts/runtime/runtime_adapter.py
@@ -0,0 +1,70 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from datetime import datetime
+from typing import Protocol
+
+
+@dataclass(frozen=True)
+class EnsureRuntimeRequest:
+    runtime_id: str
+    workspace_id: str
+    workspace_code: str
+    owner_user_id: str
+
+
+@dataclass(frozen=True)
+class RuntimeEndpoint:
+    runtime_id: str
+    runtime_type: str
+    provider: str
+    runtime_ref: str
+    internal_url: str
+    proxy_base_path: str
+
+
+@dataclass(frozen=True)
+class RuntimeHealth:
+    runtime_id: str
+    healthy: bool
+    checked_at: datetime
+    detail: str | None = None
+
+
+@dataclass(frozen=True)
+class CreateSessionRequest:
+    runtime_id: str
+    workspace_code: str
+    relative_path: str
+
+
+@dataclass(frozen=True)
+class RuntimeSession:
+    runtime_id: str
+    session_id: str
+    jupyter_url: str
+    reused: bool
+
+
+class RuntimeAdapter(Protocol):
+    async def ensure_running(
+        self,
+        request: EnsureRuntimeRequest,
+    ) -> RuntimeEndpoint: ...
+
+    async def stop(self, runtime_id: str, reason: str) -> None: ...
+
+    async def restart(self, runtime_id: str) -> RuntimeEndpoint: ...
+
+    async def health(self, runtime_id: str) -> RuntimeHealth: ...
+
+    async def create_session(
+        self,
+        request: CreateSessionRequest,
+    ) -> RuntimeSession: ...
+
+    async def terminate_session(
+        self,
+        runtime_id: str,
+        session_id: str,
+    ) -> None: ...
diff --git a/contracts/schedules/schedule-definition-api-v1.md b/contracts/schedules/schedule-definition-api-v1.md
new file mode 100644
index 0000000..4393816
--- /dev/null
+++ b/contracts/schedules/schedule-definition-api-v1.md
@@ -0,0 +1,122 @@
+# 调度定义 API 契约 V1
+
+冻结日期：2026-07-28  
+状态：`implemented`
+
+## 1. 范围
+
+本契约只覆盖调度定义，不触发任务执行：
+
+- 调度方案增删改查；
+- 稳定版本制品列表；
+- 节点和连线增删改；
+- 五段 Cron 校验与未来时间预览；
+- DAG 完整性和有向无环校验。
+
+立即运行、Cron 自动触发和 Executor 执行已经由独立 Schedule 服务承接。
+
+## 2. 请求上下文
+
+所有接口都要求：
+
+| Header | 含义 |
+|---|---|
+| `X-User-ID` | 当前用户 |
+| `X-Workspace-ID` | 当前 Workspace |
+| `X-Request-ID` | 请求追踪 ID；可省略，由服务端生成 |
+
+服务端只返回当前 Workspace 的调度。节点引用的 `versions_id` 必须属于当前
+Workspace，且当前用户有权读取。
+
+## 3. HTTP 接口
+
+| 方法 | 路径 | 作用 |
+|---|---|---|
+| `GET` | `/api/v1/schedule-artifacts` | 查询可加入调度的稳定版本 |
+| `POST` | `/api/v1/cron/preview` | 校验 Cron 并预览未来时间 |
+| `GET` | `/api/v1/schedules` | 查询调度列表 |
+| `POST` | `/api/v1/schedules` | 新建调度 |
+| `GET` | `/api/v1/schedules/{schedule_id}` | 查询调度及完整 DAG |
+| `PUT/PATCH` | `/api/v1/schedules/{schedule_id}` | 修改调度基本信息 |
+| `DELETE` | `/api/v1/schedules/{schedule_id}` | 软删除调度 |
+| `POST` | `/api/v1/schedules/{schedule_id}/nodes` | 新建节点 |
+| `PUT` | `/api/v1/schedules/{schedule_id}/nodes/{node_id}` | 修改节点 |
+| `DELETE` | `/api/v1/schedules/{schedule_id}/nodes/{node_id}` | 删除节点及关联连线 |
+| `POST` | `/api/v1/schedules/{schedule_id}/edges` | 新建有向连线 |
+| `PUT` | `/api/v1/schedules/{schedule_id}/edges/{edge_id}` | 修改连线条件 |
+| `DELETE` | `/api/v1/schedules/{schedule_id}/edges/{edge_id}` | 删除连线 |
+| `POST` | `/api/v1/schedules/{schedule_id}/validate` | 校验当前 DAG |
+
+成功响应统一为：
+
+```json
+{
+  "request_id": "01...",
+  "data": {},
+  "meta": {}
+}
+```
+
+## 4. 并发修改契约
+
+新建调度时 `workflow_version=1`。每次修改调度、节点或连线都必须在请求体中
+提交当前 `workflow_version`，成功后版本号加一。
+
+版本不一致时返回 `412 Precondition Failed`：
+
+```json
+{
+  "detail": {
+    "code": "WORKFLOW_VERSION_CONFLICT",
+    "message": "schedule was modified by another request",
+    "expected": 3,
+    "current": 4
+  }
+}
+```
+
+前端收到 `412` 后必须重新读取调度，不得用旧画布直接覆盖。
+
+## 5. 调度与 Cron 约束
+
+- `trigger_type`：`manual / cron / api`；
+- `failure_policy`：`stop / continue`；
+- Cron 固定为五段：`minute hour day month weekday`；
+- 时区使用 IANA 名称，例如 `Asia/Shanghai`；
+- `cron` 类型必须提供 `cron_expression`，其他类型不得提供；
+- 新建的空调度不能直接启用；
+- 只有 DAG 校验通过的调度才能设为 `enabled=true`；
+- `next_run_at` 在数据库和接口中按 UTC 保存和返回。
+
+Cron 预览请求示例：
+
+```json
+{
+  "cron_expression": "*/5 * * * *",
+  "timezone": "Asia/Shanghai",
+  "count": 5,
+  "base_time": "2026-07-28T08:00:00+08:00"
+}
+```
+
+## 6. 节点与 DAG 约束
+
+- 节点必须引用不可变稳定版本 `versions_id`，不能引用工作副本；
+- 同一个调度内 `node_key` 唯一；
+- 节点保存超时、重试、位置、参数和环境引用；
+- 连线的起点、终点必须属于同一调度；
+- 不允许自环、重复连线和有向环；
+- 删除节点会同时删除与该节点相连的边；
+- 已有运行历史的节点不能物理删除；
+- 校验结果返回根节点、叶节点、拓扑顺序和错误列表。
+
+## 7. 典型状态码
+
+| 状态码 | 场景 |
+|---|---|
+| `201` | 调度、节点或连线创建成功 |
+| `404` | 调度、稳定版本、节点或连线不存在/不可见 |
+| `409` | 名称冲突、重复连线、DAG 成环或无效 DAG 启用 |
+| `412` | `workflow_version` 已过期 |
+| `422` | 请求字段、Cron、时区或节点归属不合法 |
+
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/111test1-checkpoint.ipynb b/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/111test1-checkpoint.ipynb
new file mode 100644
index 0000000..06b3181
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/111test1-checkpoint.ipynb
@@ -0,0 +1,67 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "5f4293c4",
+   "metadata": {},
+   "source": [
+    "# 新建模型实验\\n在这里开始数据探索与模型构建。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "694d9330",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Hello, Model Platform!\n"
+     ]
+    }
+   ],
+   "source": [
+    "print('Hello, Model Platform!')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6c70739e-0bd2-413d-bb0e-68ed8951d4bb",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "a1574172-4d3c-40cd-860e-f0f0b4822c49",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.13.11"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/222test2-checkpoint.py b/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/222test2-checkpoint.py
new file mode 100644
index 0000000..2dc3e1b
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/222test2-checkpoint.py
@@ -0,0 +1,9 @@
+"""模型实验开发平台构建脚本。"""
+
+
+def main() -> None:
+    print("Hello, Model Platform!")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/test2-checkpoint.py b/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/test2-checkpoint.py
new file mode 100644
index 0000000..2dc3e1b
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/.ipynb_checkpoints/test2-checkpoint.py
@@ -0,0 +1,9 @@
+"""模型实验开发平台构建脚本。"""
+
+
+def main() -> None:
+    print("Hello, Model Platform!")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/111test1.ipynb b/deploy/data/workspaces/model-dev/users/admin-zhang/111test1.ipynb
new file mode 100644
index 0000000..08007ca
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/111test1.ipynb
@@ -0,0 +1,89 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "5f4293c4",
+   "metadata": {},
+   "source": [
+    "# 新建模型实验\\n在这里开始数据探索与模型构建。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "694d9330",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Hello, Model Platform!\n"
+     ]
+    }
+   ],
+   "source": [
+    "print('Hello, Model Platform!')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6c70739e-0bd2-413d-bb0e-68ed8951d4bb",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "a1574172-4d3c-40cd-860e-f0f0b4822c49",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'2026-07-30 10:38:49.218085'"
+      ]
+     },
+     "execution_count": 3,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "from datetime import datetime\n",
+    "str(datetime.now())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "2d521122-0ee9-4f39-b0a2-6d3a3b004916",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.13.11"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/222test2.py b/deploy/data/workspaces/model-dev/users/admin-zhang/222test2.py
new file mode 100644
index 0000000..2dc3e1b
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/222test2.py
@@ -0,0 +1,9 @@
+"""模型实验开发平台构建脚本。"""
+
+
+def main() -> None:
+    print("Hello, Model Platform!")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/.ipynb_checkpoints/test-checkpoint.ipynb b/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/.ipynb_checkpoints/test-checkpoint.ipynb
new file mode 100644
index 0000000..bcf5520
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/.ipynb_checkpoints/test-checkpoint.ipynb
@@ -0,0 +1,43 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "e139eae2",
+   "metadata": {},
+   "source": [
+    "# 新建模型实验\\n在这里开始数据探索与模型构建。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7a78bce5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "print('Hello, Model Platform!')"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.13.11"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/NotebookDemo.ipynb b/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/NotebookDemo.ipynb
new file mode 100644
index 0000000..7cd3200
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/NotebookDemo.ipynb
@@ -0,0 +1,67 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "initial_id",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": ["hello world\n"]
+    }
+   ],
+   "source": ["print(\"hello world\")"]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "979c21d2489e134d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": ["hello world12323\n"]
+    }
+   ],
+   "source": ["print(\"hello world12323\")"]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "e068092a-3b51-4399-9c64-c44d58f4973c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": ["Python 3.12.13\n"]
+    }
+   ],
+   "source": ["!python --version"]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1f512d9e-92f7-423e-9176-40fec30dd79c",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "name": "python",
+   "version": "3.12.13"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/test.ipynb b/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/test.ipynb
new file mode 100644
index 0000000..4fc54c1
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/notebooks/test.ipynb
@@ -0,0 +1,59 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "e139eae2",
+   "metadata": {},
+   "source": [
+    "# 新建模型实验\\n在这里开始数据探索与模型构建。"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "7a78bce5",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "111\n"
+     ]
+    }
+   ],
+   "source": [
+    "print('111')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "42d2764b-5699-4374-afe9-aecda6d2d1cd",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.13.11"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/deploy/data/workspaces/model-dev/users/admin-zhang/test2.py b/deploy/data/workspaces/model-dev/users/admin-zhang/test2.py
new file mode 100644
index 0000000..2dc3e1b
--- /dev/null
+++ b/deploy/data/workspaces/model-dev/users/admin-zhang/test2.py
@@ -0,0 +1,9 @@
+"""模型实验开发平台构建脚本。"""
+
+
+def main() -> None:
+    print("Hello, Model Platform!")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/deploy/demo/NotebookDemo.ipynb b/deploy/demo/NotebookDemo.ipynb
new file mode 100644
index 0000000..7cd3200
--- /dev/null
+++ b/deploy/demo/NotebookDemo.ipynb
@@ -0,0 +1,67 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "initial_id",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": ["hello world\n"]
+    }
+   ],
+   "source": ["print(\"hello world\")"]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "979c21d2489e134d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": ["hello world12323\n"]
+    }
+   ],
+   "source": ["print(\"hello world12323\")"]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "e068092a-3b51-4399-9c64-c44d58f4973c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": ["Python 3.12.13\n"]
+    }
+   ],
+   "source": ["!python --version"]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1f512d9e-92f7-423e-9176-40fec30dd79c",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "name": "python",
+   "version": "3.12.13"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..f5a6d4b
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,224 @@
+name: ${COMPOSE_PROJECT_NAME:-model-platform-new}
+
+x-app-environment: &app-environment
+  DATABASE_URL: mysql+asyncmy://${MYSQL_USER:-model_platform}:${MYSQL_PASSWORD:-model_platform}@mysql:3306/${MYSQL_DATABASE:-model_platform}?charset=utf8mb4
+  INTERNAL_SERVICE_TOKEN: ${INTERNAL_SERVICE_TOKEN:-local-internal-token}
+  JUPYTER_TOKEN: ${JUPYTER_TOKEN:-local-jupyter-token}
+  WORKSPACE_ROOT: /workspace/workspaces
+
+services:
+  mysql:
+    image: mysql:8.0.36
+    restart: unless-stopped
+    environment:
+      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD:-model_platform_root}
+      MYSQL_DATABASE: ${MYSQL_DATABASE:-model_platform}
+      MYSQL_USER: ${MYSQL_USER:-model_platform}
+      MYSQL_PASSWORD: ${MYSQL_PASSWORD:-model_platform}
+    command:
+      - --character-set-server=utf8mb4
+      - --collation-server=utf8mb4_0900_ai_ci
+      - --default-time-zone=+08:00
+    ports:
+      - "${MYSQL_PORT:-3308}:3306"
+    volumes:
+      - mysql_data:/var/lib/mysql
+    healthcheck:
+      test: ["CMD-SHELL", "mysqladmin ping -h 127.0.0.1 -u root -p$$MYSQL_ROOT_PASSWORD --silent"]
+      interval: 10s
+      timeout: 5s
+      retries: 15
+      start_period: 20s
+
+  rustfs:
+    image: ${RUSTFS_IMAGE:-rustfs/rustfs:latest}
+    restart: unless-stopped
+    environment:
+      RUSTFS_ADDRESS: ":9000"
+      RUSTFS_CONSOLE_ENABLE: "true"
+      RUSTFS_CONSOLE_ADDRESS: ":9001"
+      RUSTFS_ACCESS_KEY: ${RUSTFS_ACCESS_KEY:-modelplatform}
+      RUSTFS_SECRET_KEY: ${RUSTFS_SECRET_KEY:-modelplatformsecret}
+    command: ["/data"]
+    ports:
+      - "${RUSTFS_API_PORT:-9010}:9000"
+      - "${RUSTFS_CONSOLE_PORT:-9011}:9001"
+    volumes:
+      - rustfs_data:/data
+
+  jupyter:
+    image: ${JUPYTER_IMAGE:-quay.io/jupyter/base-notebook:2025-12-31}
+    restart: unless-stopped
+    environment:
+      JUPYTER_TOKEN: ${JUPYTER_TOKEN:-local-jupyter-token}
+    command:
+      - start-notebook.py
+      - --ServerApp.base_url=/jupyter/
+      - --ServerApp.root_dir=/home/jovyan/work
+      - --ServerApp.ip=0.0.0.0
+      - --ServerApp.allow_remote_access=True
+      - --IdentityProvider.token=${JUPYTER_TOKEN:-local-jupyter-token}
+      - --PasswordIdentityProvider.hashed_password=
+    volumes:
+      - ./deploy/data/workspaces:/home/jovyan/work
+    expose:
+      - "8888"
+    healthcheck:
+      test:
+        - CMD
+        - python
+        - -c
+        - "import os, urllib.request; r=urllib.request.Request('http://127.0.0.1:8888/jupyter/api/status', headers={'Authorization':'Bearer '+os.environ['JUPYTER_TOKEN']}); urllib.request.urlopen(r, timeout=3)"
+      interval: 10s
+      timeout: 5s
+      retries: 15
+      start_period: 30s
+
+  migrate:
+    build:
+      context: .
+      dockerfile: backend/Dockerfile
+    environment:
+      <<: *app-environment
+    command: ["alembic", "upgrade", "head"]
+    depends_on:
+      mysql:
+        condition: service_healthy
+    restart: "no"
+
+  backend:
+    build:
+      context: .
+      dockerfile: backend/Dockerfile
+    restart: unless-stopped
+    environment:
+      <<: *app-environment
+      SERVICE_NAME: backend
+      READINESS_TARGETS: mysql:3306,rustfs:9000
+      RUNTIME_API_URL: http://runtime:8000
+      SCHEDULE_API_URL: http://schedule:8000
+      RUSTFS_INTERNAL_ENDPOINT: http://rustfs:9000
+      RUSTFS_PUBLIC_ENDPOINT: http://localhost:${RUSTFS_API_PORT:-9010}
+      RUSTFS_ACCESS_KEY: ${RUSTFS_ACCESS_KEY:-modelplatform}
+      RUSTFS_SECRET_KEY: ${RUSTFS_SECRET_KEY:-modelplatformsecret}
+      RUSTFS_DEFAULT_BUCKET: model-platform
+    healthcheck:
+      test:
+        - CMD
+        - python
+        - -c
+        - "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health/ready', timeout=3)"
+      interval: 10s
+      timeout: 5s
+      retries: 10
+      start_period: 10s
+    volumes:
+      - ./deploy/data/workspaces:/workspace/workspaces
+    ports:
+      - "${BACKEND_PORT:-8010}:8000"
+    depends_on:
+      migrate:
+        condition: service_completed_successfully
+      mysql:
+        condition: service_healthy
+      rustfs:
+        condition: service_started
+
+  runtime:
+    build:
+      context: .
+      dockerfile: runtime/Dockerfile
+    restart: unless-stopped
+    environment:
+      <<: *app-environment
+      SERVICE_NAME: runtime-manager
+      READINESS_TARGETS: mysql:3306,jupyter:8888
+      FILE_LOCK_ENABLED: "false"
+      FILE_LOCK_TTL_MS: "45000"
+      JUPYTER_INTERNAL_URL: http://jupyter:8888/jupyter/
+      JUPYTER_PROXY_BASE_PATH: /jupyter/
+      JUPYTER_TICKET_TTL_SECONDS: "300"
+      RUNTIME_LEASE_SECONDS: "1800"
+    healthcheck:
+      test:
+        - CMD
+        - python
+        - -c
+        - "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health/ready', timeout=3)"
+      interval: 10s
+      timeout: 5s
+      retries: 10
+      start_period: 10s
+    ports:
+      - "${RUNTIME_PORT:-8012}:8000"
+    depends_on:
+      migrate:
+        condition: service_completed_successfully
+      mysql:
+        condition: service_healthy
+      jupyter:
+        condition: service_healthy
+
+  schedule:
+    build:
+      context: .
+      dockerfile: schedule/Dockerfile
+    restart: unless-stopped
+    environment:
+      <<: *app-environment
+      SERVICE_NAME: schedule-executor
+      READINESS_TARGETS: mysql:3306,rustfs:9000,backend:8000
+      RUSTFS_INTERNAL_ENDPOINT: http://rustfs:9000
+      RUSTFS_ACCESS_KEY: ${RUSTFS_ACCESS_KEY:-modelplatform}
+      RUSTFS_SECRET_KEY: ${RUSTFS_SECRET_KEY:-modelplatformsecret}
+      BACKEND_API_URL: http://backend:8000
+    healthcheck:
+      test:
+        - CMD
+        - python
+        - -c
+        - "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health/ready', timeout=3)"
+      interval: 10s
+      timeout: 5s
+      retries: 10
+      start_period: 10s
+    volumes:
+      - ./deploy/data/workspaces:/workspace/workspaces
+    ports:
+      - "${SCHEDULE_PORT:-8013}:8000"
+    depends_on:
+      mysql:
+        condition: service_healthy
+      rustfs:
+        condition: service_started
+      backend:
+        condition: service_healthy
+
+  gateway:
+    build:
+      context: .
+      dockerfile: nginx/Dockerfile
+    restart: unless-stopped
+    environment:
+      INTERNAL_SERVICE_TOKEN: ${INTERNAL_SERVICE_TOKEN:-local-internal-token}
+    ports:
+      - "${GATEWAY_PORT:-8081}:80"
+    depends_on:
+      backend:
+        condition: service_healthy
+      runtime:
+        condition: service_healthy
+      schedule:
+        condition: service_healthy
+      jupyter:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD-SHELL", "wget -qO- http://127.0.0.1/health >/dev/null 2>&1"]
+      interval: 10s
+      timeout: 5s
+      retries: 10
+      start_period: 5s
+
+volumes:
+  mysql_data:
+  rustfs_data:
diff --git a/frontend/.dockerignore b/frontend/.dockerignore
new file mode 100644
index 0000000..9b8d514
--- /dev/null
+++ b/frontend/.dockerignore
@@ -0,0 +1,4 @@
+.react-router
+build
+node_modules
+README.md
\ No newline at end of file
diff --git a/frontend/.gitignore b/frontend/.gitignore
new file mode 100644
index 0000000..039ee62
--- /dev/null
+++ b/frontend/.gitignore
@@ -0,0 +1,7 @@
+.DS_Store
+.env
+/node_modules/
+
+# React Router
+/.react-router/
+/build/
diff --git a/frontend/README.md b/frontend/README.md
new file mode 100644
index 0000000..a3844c1
--- /dev/null
+++ b/frontend/README.md
@@ -0,0 +1,22 @@
+# Frontend
+
+React Router SPA，已将原前端按功能拆分到 `app/`：
+
+```text
+app/components/          通用图标组件
+app/features/platform/   主框架、脚本工作区和 Jupyter 编辑
+app/features/schedules/  DAG 调度页面
+app/features/admin/      工作台与系统管理
+app/routes/              React Router 路由入口
+app/services/            API 请求、DTO 和演示上下文
+app/styles/              分功能样式
+```
+
+本地开发：
+
+```bash
+pnpm install
+pnpm dev
+```
+
+生产构建由根目录 `nginx/Dockerfile` 完成，构建结果复制到 Nginx 静态目录。
diff --git a/frontend/app/app.css b/frontend/app/app.css
new file mode 100644
index 0000000..928fa83
--- /dev/null
+++ b/frontend/app/app.css
@@ -0,0 +1,11 @@
+:root {
+  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
+  color: #1f354b;
+  background: #f3f6f9;
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+}
+
+* { box-sizing: border-box; }
+html, body { margin: 0; min-width: 1024px; min-height: 100%; }
+button, input, select, textarea { font: inherit; }
diff --git a/frontend/app/components/Icon.tsx b/frontend/app/components/Icon.tsx
new file mode 100644
index 0000000..ec50beb
--- /dev/null
+++ b/frontend/app/components/Icon.tsx
@@ -0,0 +1,183 @@
+type IconName =
+  | "brand"
+  | "home"
+  | "script"
+  | "schedule"
+  | "experiment"
+  | "database"
+  | "settings"
+  | "chevron"
+  | "search"
+  | "plus"
+  | "upload"
+  | "folder"
+  | "notebook"
+  | "python"
+  | "refresh"
+  | "close"
+  | "check"
+  | "info"
+  | "workspace"
+  | "menu"
+  | "external"
+  | "release"
+  | "play";
+
+type IconProps = {
+  name: IconName;
+  size?: number;
+  strokeWidth?: number;
+};
+
+export default function Icon({
+  name,
+  size = 18,
+  strokeWidth = 1.8,
+}: IconProps) {
+  const common = {
+    width: size,
+    height: size,
+    viewBox: "0 0 24 24",
+    fill: "none",
+    xmlns: "http://www.w3.org/2000/svg",
+    "aria-hidden": true,
+  };
+
+  if (name === "brand") {
+    return (
+      <svg {...common} viewBox="0 0 32 32">
+        <path
+          d="M16 3.5 27 9.8v12.4L16 28.5 5 22.2V9.8L16 3.5Z"
+          fill="currentColor"
+          opacity=".2"
+        />
+        <path
+          d="M16 7.7 23.4 12v8L16 24.3 8.6 20v-8L16 7.7Z"
+          fill="currentColor"
+        />
+        <circle cx="16" cy="16" r="3.3" fill="white" />
+      </svg>
+    );
+  }
+
+  const paths: Record<Exclude<IconName, "brand">, React.ReactNode> = {
+    home: (
+      <>
+        <path d="m3.5 11 8.5-7 8.5 7" />
+        <path d="M5.5 10v10h13V10M9.5 20v-6h5v6" />
+      </>
+    ),
+    script: (
+      <>
+        <rect x="5" y="3.5" width="14" height="17" rx="2" />
+        <path d="M8.5 8h7M8.5 12h7M8.5 16h4.5" />
+      </>
+    ),
+    schedule: (
+      <>
+        <circle cx="12" cy="12" r="8.5" />
+        <path d="M12 7.5V12l3.2 2" />
+      </>
+    ),
+    experiment: (
+      <>
+        <path d="M9 3.5h6M10 3.5v5l-5.2 9a2 2 0 0 0 1.7 3h11a2 2 0 0 0 1.7-3L14 8.5v-5" />
+        <path d="M7.3 15h9.4" />
+      </>
+    ),
+    database: (
+      <>
+        <ellipse cx="12" cy="5.5" rx="7.5" ry="3" />
+        <path d="M4.5 5.5v6c0 1.7 3.4 3 7.5 3s7.5-1.3 7.5-3v-6" />
+        <path d="M4.5 11.5v6c0 1.7 3.4 3 7.5 3s7.5-1.3 7.5-3v-6" />
+      </>
+    ),
+    settings: (
+      <>
+        <circle cx="12" cy="12" r="3" />
+        <path d="M19.4 15a1.7 1.7 0 0 0 .3 1.9l.1.1-2.8 2.8-.1-.1a1.7 1.7 0 0 0-1.9-.3 1.7 1.7 0 0 0-1 1.6v.2h-4V21a1.7 1.7 0 0 0-1-1.6 1.7 1.7 0 0 0-1.9.3l-.1.1L4.2 17l.1-.1a1.7 1.7 0 0 0 .3-1.9A1.7 1.7 0 0 0 3 14H2.8v-4H3a1.7 1.7 0 0 0 1.6-1 1.7 1.7 0 0 0-.3-1.9L4.2 7 7 4.2l.1.1a1.7 1.7 0 0 0 1.9.3A1.7 1.7 0 0 0 10 3v-.2h4V3a1.7 1.7 0 0 0 1 1.6 1.7 1.7 0 0 0 1.9-.3l.1-.1L19.8 7l-.1.1a1.7 1.7 0 0 0-.3 1.9 1.7 1.7 0 0 0 1.6 1h.2v4H21a1.7 1.7 0 0 0-1.6 1Z" />
+      </>
+    ),
+    chevron: <path d="m9 7 5 5-5 5" />,
+    search: (
+      <>
+        <circle cx="10.5" cy="10.5" r="6.5" />
+        <path d="m15.5 15.5 4 4" />
+      </>
+    ),
+    plus: <path d="M12 5v14M5 12h14" />,
+    upload: (
+      <>
+        <path d="M12 16V4m0 0L7.5 8.5M12 4l4.5 4.5" />
+        <path d="M4 15.5V20h16v-4.5" />
+      </>
+    ),
+    folder: (
+      <path d="M3.5 6.5h6l2 2H20.5v10.5a1.5 1.5 0 0 1-1.5 1.5H5a1.5 1.5 0 0 1-1.5-1.5V6.5Z" />
+    ),
+    notebook: (
+      <>
+        <rect x="5" y="3.5" width="14" height="17" rx="2" />
+        <path d="M8.5 3.5v17M11.5 8h4M11.5 12h4M11.5 16h2.5" />
+      </>
+    ),
+    python: (
+      <>
+        <path d="M8 4.5h5.5a2.5 2.5 0 0 1 2.5 2.5v3H8a3 3 0 0 0-3 3v2" />
+        <path d="M16 19.5h-5.5A2.5 2.5 0 0 1 8 17v-3h8a3 3 0 0 0 3-3V9" />
+        <circle cx="11" cy="7" r=".8" fill="currentColor" stroke="none" />
+        <circle cx="13" cy="17" r=".8" fill="currentColor" stroke="none" />
+      </>
+    ),
+    refresh: (
+      <>
+        <path d="M19 8V4l-1.7 1.7A8 8 0 1 0 20 12" />
+        <path d="M19 4h-4" />
+      </>
+    ),
+    close: <path d="m6 6 12 12M18 6 6 18" />,
+    check: <path d="m5 12.5 4 4L19 7" />,
+    info: (
+      <>
+        <circle cx="12" cy="12" r="9" />
+        <path d="M12 11v5M12 8h.01" />
+      </>
+    ),
+    workspace: (
+      <>
+        <rect x="3.5" y="5" width="17" height="14" rx="2" />
+        <path d="M8 5V3.5h8V5M8 11h8M12 8v6" />
+      </>
+    ),
+    menu: (
+      <>
+        <path d="M4 6h16M4 12h16M4 18h16" />
+      </>
+    ),
+    external: (
+      <>
+        <path d="M14 5h5v5M19 5l-8 8" />
+        <path d="M18 13v6H5V6h6" />
+      </>
+    ),
+    release: (
+      <>
+        <path d="M12 3.5v11M7.5 8 12 3.5 16.5 8" />
+        <path d="M5 12.5v7h14v-7" />
+      </>
+    ),
+    play: <path d="m8 5 11 7-11 7V5Z" />,
+  };
+
+  return (
+    <svg
+      {...common}
+      stroke="currentColor"
+      strokeWidth={strokeWidth}
+      strokeLinecap="round"
+      strokeLinejoin="round"
+    >
+      {paths[name]}
+    </svg>
+  );
+}
diff --git a/frontend/app/features/admin/AdminPages.tsx b/frontend/app/features/admin/AdminPages.tsx
new file mode 100644
index 0000000..1f7ad1d
--- /dev/null
+++ b/frontend/app/features/admin/AdminPages.tsx
@@ -0,0 +1,256 @@
+import { FormEvent, useEffect, useState } from "react";
+
+import {
+  ApiRequestError,
+  createEmployee,
+  deleteEmployee,
+  demoContext,
+  listEmployees,
+  updateEmployee,
+  type Employee,
+} from "../../services/api";
+import Icon from "../../components/Icon";
+import "../../styles/admin.css";
+import "../../styles/dashboard.css";
+
+
+type Notice = {
+  tone: "success" | "error" | "info";
+  message: string;
+};
+
+export function DashboardPage({
+  scriptCount,
+  online,
+  onNavigate,
+}: {
+  scriptCount: number;
+  online: boolean;
+  onNavigate: (page: "scripts" | "schedules" | "system") => void;
+}) {
+  return (
+    <section className="dashboard-page">
+      <div className="dashboard-hero">
+        <div>
+          <span>MODEL DEVELOPMENT PLATFORM</span>
+          <h2>下午好，{demoContext.userName}</h2>
+          <p>当前位于 {demoContext.workspaceName}，可以继续构建脚本或配置调度。</p>
+        </div>
+        <span className="dashboard-hero__badge">{online ? "服务正常" : "服务连接中"}</span>
+      </div>
+      <div className="dashboard-metrics">
+        <article><Icon name="script" /><span><b>{scriptCount}</b><small>工作副本</small></span></article>
+        <article><Icon name="workspace" /><span><b>2</b><small>Workspace</small></span></article>
+        <article><Icon name="settings" /><span><b>4</b><small>平台员工</small></span></article>
+        <article><Icon name="check" /><span><b>{online ? "正常" : "检查中"}</b><small>平台状态</small></span></article>
+      </div>
+      <div className="dashboard-actions">
+        <button type="button" onClick={() => onNavigate("scripts")}><Icon name="script" />构建脚本</button>
+        <button type="button" onClick={() => onNavigate("schedules")}><Icon name="schedule" />调度配置</button>
+        <button type="button" onClick={() => onNavigate("system")}><Icon name="settings" />员工管理</button>
+      </div>
+      <div className="dashboard-grid">
+        <section className="dashboard-panel dashboard-panel--trend">
+          <header><div><span>运行趋势</span><h3>近 7 天调度执行</h3></div><b>成功率 92.6%</b></header>
+          <div className="trend-chart">
+            {[38, 55, 44, 73, 61, 86, 78].map((value, index) => (
+              <div className="trend-column" key={index}>
+                <span className="trend-column__value">{Math.round(value / 7)}</span>
+                <i style={{ height: `${value}%` }} />
+                <small>{["周一", "周二", "周三", "周四", "周五", "周六", "今天"][index]}</small>
+              </div>
+            ))}
+          </div>
+          <footer><span><i className="legend-dot is-success" />成功 75</span><span><i className="legend-dot is-failed" />失败 6</span></footer>
+        </section>
+        <section className="dashboard-panel dashboard-panel--donut">
+          <header><div><span>脚本资产</span><h3>类型分布</h3></div></header>
+          <div className="donut-layout">
+            <div className="donut-chart"><span><b>{scriptCount}</b><small>全部脚本</small></span></div>
+            <div className="donut-legend">
+              <span><i className="legend-dot is-notebook" /><b>Notebook</b><small>{Math.max(1, Math.round(scriptCount * .67))} 个 · 67%</small></span>
+              <span><i className="legend-dot is-python" /><b>Python</b><small>{Math.max(0, scriptCount - Math.round(scriptCount * .67))} 个 · 33%</small></span>
+              <span><i className="legend-dot is-version" /><b>稳定版本</b><small>3 个已发布</small></span>
+            </div>
+          </div>
+        </section>
+        <section className="dashboard-panel dashboard-panel--activity">
+          <header><div><span>ACTIVITY</span><h3>最近平台活动</h3></div><button type="button">查看全部</button></header>
+          <div className="activity-table">
+            <div className="activity-table__head"><span>操作内容</span><span>执行人</span><span>状态</span><span>时间</span></div>
+            {[
+              ["数据探索.ipynb 发布稳定版本 v3.0", "张三", "成功", "16:42"],
+              ["每日模型训练流程完成调度运行", "Scheduler", "成功", "15:25"],
+              ["批量预测.py 更新工作副本", "王五", "已同步", "14:18"],
+              ["风险验证流程完成 DAG 校验", "李四", "成功", "11:06"],
+            ].map((row) => (
+              <div className="activity-row" key={row[0]}>
+                <span><i className="activity-icon"><Icon name="check" size={13} /></i>{row[0]}</span>
+                <span>{row[1]}</span><span><b>{row[2]}</b></span><span>{row[3]}</span>
+              </div>
+            ))}
+          </div>
+        </section>
+      </div>
+    </section>
+  );
+}
+
+
+const EMPTY_FORM = {
+  username: "",
+  display_name: "",
+  email: "",
+  role_code: "developer" as "admin" | "developer",
+  status: "active" as "active" | "disabled" | "locked",
+};
+
+export function SystemAdminPage({
+  onNotify,
+  onConnectionChange,
+}: {
+  onNotify: (notice: Notice) => void;
+  onConnectionChange: (online: boolean) => void;
+}) {
+  const [employees, setEmployees] = useState<Employee[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [saving, setSaving] = useState(false);
+  const [editing, setEditing] = useState<Employee | null>(null);
+  const [dialogOpen, setDialogOpen] = useState(false);
+  const [form, setForm] = useState(EMPTY_FORM);
+  const canManage = demoContext.roleCode === "admin";
+
+  const load = async (): Promise<void> => {
+    setLoading(true);
+    try {
+      setEmployees(await listEmployees());
+      onConnectionChange(true);
+    } catch (error) {
+      onConnectionChange(false);
+      onNotify({
+        tone: "error",
+        message: error instanceof Error ? error.message : "员工列表加载失败",
+      });
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  useEffect(() => {
+    void load();
+  }, []);
+
+  const openCreate = (): void => {
+    setEditing(null);
+    setForm(EMPTY_FORM);
+    setDialogOpen(true);
+  };
+
+  const openEdit = (employee: Employee): void => {
+    setEditing(employee);
+    setForm({
+      username: employee.username,
+      display_name: employee.display_name,
+      email: employee.email ?? "",
+      role_code: employee.role_code,
+      status: employee.status,
+    });
+    setDialogOpen(true);
+  };
+
+  const submit = async (event: FormEvent): Promise<void> => {
+    event.preventDefault();
+    if (!form.display_name.trim() || (!editing && !form.username.trim())) return;
+    setSaving(true);
+    try {
+      if (editing) {
+        const updated = await updateEmployee(editing.user_id, {
+          display_name: form.display_name.trim(),
+          email: form.email.trim() || null,
+          role_code: form.role_code,
+          status: form.status,
+        });
+        setEmployees((current) => current.map(
+          (item) => item.user_id === updated.user_id ? updated : item,
+        ));
+      } else {
+        const created = await createEmployee({
+          username: form.username.trim(),
+          display_name: form.display_name.trim(),
+          email: form.email.trim() || null,
+          role_code: form.role_code,
+        });
+        setEmployees((current) => [...current, created]);
+      }
+      setDialogOpen(false);
+      onNotify({ tone: "success", message: editing ? "员工信息已更新" : "员工已添加" });
+    } catch (error) {
+      onNotify({
+        tone: "error",
+        message: error instanceof ApiRequestError ? error.message : "保存员工失败",
+      });
+    } finally {
+      setSaving(false);
+    }
+  };
+
+  const remove = async (employee: Employee): Promise<void> => {
+    if (!window.confirm(`确定从当前 Workspace 删除员工“${employee.display_name}”吗？`)) return;
+    try {
+      await deleteEmployee(employee.user_id);
+      setEmployees((current) => current.filter((item) => item.user_id !== employee.user_id));
+      onNotify({ tone: "success", message: "员工已删除" });
+    } catch (error) {
+      onNotify({
+        tone: "error",
+        message: error instanceof Error ? error.message : "删除员工失败",
+      });
+    }
+  };
+
+  return (
+    <section className="admin-page">
+      <header className="admin-page__header">
+        <div><span>系统管理</span><h2>员工管理</h2><p>{demoContext.workspaceName} · {employees.length} 名员工</p></div>
+        <button className="primary-button" type="button" disabled={!canManage} onClick={openCreate}>
+          <Icon name="plus" size={15} />添加员工
+        </button>
+      </header>
+      {!canManage && <div className="admin-readonly">当前为开发人员，只能查看员工列表。</div>}
+      <div className="employee-table">
+        <div className="employee-table__head"><span>员工</span><span>账号</span><span>角色</span><span>状态</span><span>操作</span></div>
+        {loading ? <p className="admin-empty">正在加载员工…</p> : employees.map((employee) => {
+          const isProtectedAdmin = employee.role_code === "admin";
+          return (
+            <div className="employee-row" key={employee.user_id}>
+              <span className="employee-name"><b className="avatar">{employee.display_name.slice(0, 1)}</b><span><strong>{employee.display_name}</strong><small>{employee.email ?? "未设置邮箱"}</small></span></span>
+              <code>{employee.username}</code>
+              <span className={`role-pill is-${employee.role_code}`}>{employee.role_name}</span>
+              <span className={`status-pill is-${employee.status}`}>{employee.status === "active" ? "正常" : employee.status === "disabled" ? "已停用" : "已锁定"}</span>
+              <span className="employee-actions">
+                <button type="button" disabled={!canManage} onClick={() => openEdit(employee)}>编辑</button>
+                <button type="button" className="is-danger" disabled={!canManage || isProtectedAdmin} title={isProtectedAdmin ? "管理员账号不能删除" : "删除"} onClick={() => void remove(employee)}>删除</button>
+              </span>
+            </div>
+          );
+        })}
+      </div>
+
+      {dialogOpen && (
+        <div className="modal-backdrop">
+          <section className="modal modal--compact" role="dialog" aria-modal="true">
+            <div className="modal__header"><div><span className="modal__eyebrow">EMPLOYEE</span><h2>{editing ? "编辑员工" : "添加员工"}</h2></div><button className="icon-button" type="button" onClick={() => setDialogOpen(false)}><Icon name="close" /></button></div>
+            <form onSubmit={(event) => void submit(event)}>
+              <label className="form-field"><span>姓名</span><input autoFocus value={form.display_name} onChange={(event) => setForm({ ...form, display_name: event.target.value })} /></label>
+              <label className="form-field"><span>登录账号</span><input disabled={Boolean(editing)} value={form.username} onChange={(event) => setForm({ ...form, username: event.target.value })} /></label>
+              <label className="form-field"><span>邮箱</span><input type="email" value={form.email} onChange={(event) => setForm({ ...form, email: event.target.value })} /></label>
+              <label className="form-field"><span>角色</span><select value={form.role_code} onChange={(event) => setForm({ ...form, role_code: event.target.value as "admin" | "developer" })}><option value="developer">开发人员</option><option value="admin">管理员</option></select></label>
+              {editing && <label className="form-field"><span>状态</span><select value={form.status} onChange={(event) => setForm({ ...form, status: event.target.value as typeof form.status })}><option value="active">正常</option><option value="disabled">停用</option><option value="locked">锁定</option></select></label>}
+              <div className="modal__footer"><button className="secondary-button" type="button" onClick={() => setDialogOpen(false)}>取消</button><button className="primary-button" type="submit" disabled={saving}>{saving ? "保存中…" : "保存"}</button></div>
+            </form>
+          </section>
+        </div>
+      )}
+    </section>
+  );
+}
diff --git a/frontend/app/features/platform/ModelPlatformApp.tsx b/frontend/app/features/platform/ModelPlatformApp.tsx
new file mode 100644
index 0000000..73a3b9c
--- /dev/null
+++ b/frontend/app/features/platform/ModelPlatformApp.tsx
@@ -0,0 +1,1965 @@
+import {
+  type ChangeEvent,
+  FormEvent,
+  type MouseEvent as ReactMouseEvent,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from "react";
+import { useLocation, useNavigate } from "react-router";
+
+import {
+  acquireFileLock,
+  createWorkspaceDirectory,
+  createScript,
+  createJupyterAccessTicket,
+  deleteScript,
+  deleteWorkspaceDirectory,
+  demoContext,
+  demoUsers,
+  demoWorkspaces,
+  heartbeatFileLock,
+  listScripts,
+  listScriptVersions,
+  listWorkspaceDirectories,
+  publishScriptVersion,
+  releaseFileLock,
+  releaseFileLockOnUnload,
+  setDemoContext,
+  uploadScript,
+  type ActiveEditSession,
+  type ScriptItem,
+  type ScriptType,
+  type StableVersion,
+  type Visibility,
+  type WorkspaceDirectory,
+} from "../../services/api";
+import Icon from "../../components/Icon";
+import SchedulePage from "../schedules/SchedulePage";
+import { DashboardPage, SystemAdminPage } from "../admin/AdminPages";
+import "../../styles/platform.css";
+
+
+type NewScriptForm = {
+  name: string;
+  scriptType: ScriptType;
+  visibility: Visibility;
+  parentPath: string;
+};
+
+type ContextMenuState = {
+  x: number;
+  y: number;
+  kind: "root" | "directory" | "file";
+  path: string;
+  script?: ScriptItem;
+};
+
+type ToastState = {
+  tone: "success" | "error" | "info";
+  message: string;
+};
+
+const navigation = [
+  { label: "工作台", icon: "home" as const, page: "home" as const },
+  { label: "构建脚本", icon: "script" as const, page: "scripts" as const },
+  { label: "调度配置", icon: "schedule" as const, page: "schedules" as const },
+  { label: "系统管理", icon: "settings" as const, page: "system" as const },
+];
+
+type ActivePage = "home" | "scripts" | "schedules" | "system";
+
+function pageFromPath(pathname: string): ActivePage {
+  const page = pathname.replace(/^\/+|\/+$/g, "");
+  return ["scripts", "schedules", "system"].includes(page)
+    ? page as ActivePage
+    : "home";
+}
+
+function pathForPage(page: ActivePage): string {
+  return page === "home" ? "/workbench" : `/${page}`;
+}
+
+const initialForm: NewScriptForm = {
+  name: "",
+  scriptType: "notebook",
+  visibility: "workspace",
+  parentPath: "",
+};
+
+function formatTime(value: string) {
+  return new Intl.DateTimeFormat("zh-CN", {
+    month: "2-digit",
+    day: "2-digit",
+    hour: "2-digit",
+    minute: "2-digit",
+    hour12: false,
+  }).format(new Date(value));
+}
+
+function formatBytes(value: number) {
+  if (value < 1024) return `${value} B`;
+  return `${(value / 1024).toFixed(1)} KB`;
+}
+
+function shortHash(value: string) {
+  return value ? `${value.slice(0, 8)}…${value.slice(-6)}` : "—";
+}
+
+function scriptIcon(item: ScriptItem) {
+  return item.script_type === "notebook" ? "notebook" : "python";
+}
+
+function ownedScriptPath(item: ScriptItem) {
+  return item.relative_path.replaceAll("\\", "/").split("/").slice(2).join("/");
+}
+
+function parentOf(path: string) {
+  const parts = path.split("/");
+  parts.pop();
+  return parts.join("/");
+}
+
+function inferredDirectories(items: ScriptItem[]): WorkspaceDirectory[] {
+  const result = new Map<string, WorkspaceDirectory>();
+  for (const item of items) {
+    const parts = parentOf(ownedScriptPath(item)).split("/").filter(Boolean);
+    let parentPath = "";
+    for (const name of parts) {
+      const path = parentPath ? `${parentPath}/${name}` : name;
+      result.set(path, { path, name, parent_path: parentPath });
+      parentPath = path;
+    }
+  }
+  return [...result.values()];
+}
+
+function mergeDirectories(
+  left: WorkspaceDirectory[],
+  right: WorkspaceDirectory[],
+): WorkspaceDirectory[] {
+  return [...new Map(
+    [...left, ...right].map((item) => [item.path, item]),
+  ).values()];
+}
+
+function confineJupyterFrame(frame: HTMLIFrameElement): void {
+  try {
+    const document = frame.contentDocument;
+    if (!document?.documentElement) return;
+    const keepInside = (): void => {
+      document.querySelectorAll<HTMLElement>("button,[role='button']").forEach(
+        (element) => {
+          const label = `${element.getAttribute("aria-label") ?? ""} ${
+            element.getAttribute("title") ?? ""
+          } ${element.textContent ?? ""}`.trim();
+          if (/^open in\b/i.test(label) || /\bopen in\.\.\./i.test(label)) {
+            element.style.setProperty("display", "none", "important");
+          }
+        },
+      );
+      document.querySelectorAll<HTMLAnchorElement>("a[target]").forEach((link) => {
+        if (["_blank", "_top", "_parent"].includes(link.target)) {
+          link.target = "_self";
+        }
+      });
+    };
+    keepInside();
+    new MutationObserver(keepInside).observe(document.documentElement, {
+      childList: true,
+      subtree: true,
+    });
+    document.addEventListener("click", (event) => {
+      const target = event.target as HTMLElement | null;
+      const link = target?.closest?.("a") as HTMLAnchorElement | null;
+      if (link && ["_blank", "_top", "_parent"].includes(link.target)) {
+        link.target = "_self";
+      }
+    }, true);
+  } catch {
+    // The iframe remains sandboxed even if its document is not yet accessible.
+  }
+}
+
+export default function ModelPlatformApp() {
+  const location = useLocation();
+  const navigate = useNavigate();
+  const activePage = pageFromPath(location.pathname);
+  const [scripts, setScripts] = useState<ScriptItem[]>([]);
+  const [directories, setDirectories] = useState<WorkspaceDirectory[]>([]);
+  const [selectedId, setSelectedId] = useState<string | null>(null);
+  const [keyword, setKeyword] = useState("");
+  const [loading, setLoading] = useState(true);
+  const [refreshing, setRefreshing] = useState(false);
+  const [apiOnline, setApiOnline] = useState(false);
+  const [createOpen, setCreateOpen] = useState(false);
+  const [creating, setCreating] = useState(false);
+  const [form, setForm] = useState<NewScriptForm>(initialForm);
+  const [folderDialog, setFolderDialog] = useState<{
+    open: boolean;
+    parentPath: string;
+    name: string;
+    busy: boolean;
+  }>({ open: false, parentPath: "", name: "", busy: false });
+  const [contextMenu, setContextMenu] = useState<ContextMenuState | null>(null);
+  const [workspaceMenuOpen, setWorkspaceMenuOpen] = useState(false);
+  const [userMenuOpen, setUserMenuOpen] = useState(false);
+  const [uploadParentPath, setUploadParentPath] = useState("");
+  const [uploading, setUploading] = useState(false);
+  const uploadInputRef = useRef<HTMLInputElement | null>(null);
+  const [toast, setToast] = useState<ToastState | null>(null);
+  const [editSession, setEditSession] = useState<ActiveEditSession | null>(null);
+  const editSessionRef = useRef<ActiveEditSession | null>(null);
+  const selectedIdRef = useRef<string | null>(null);
+  const editorOpenRequestRef = useRef(0);
+  const editorOpeningRef = useRef(false);
+  const [embeddedJupyterUrl, setEmbeddedJupyterUrl] =
+    useState<string | null>(null);
+  const [editBusy, setEditBusy] = useState(false);
+  const [editorOpenError, setEditorOpenError] = useState<{
+    scriptId: string;
+    message: string;
+  } | null>(null);
+  const [versions, setVersions] = useState<StableVersion[]>([]);
+  const [versionsLoading, setVersionsLoading] = useState(false);
+  const [publishTarget, setPublishTarget] = useState<ScriptItem | null>(null);
+  const [releaseNote, setReleaseNote] = useState("");
+  const [publishVisibility, setPublishVisibility] =
+    useState<Visibility>("workspace");
+  const [publishing, setPublishing] = useState(false);
+  const [publishedVersion, setPublishedVersion] =
+    useState<StableVersion | null>(null);
+
+  const load = async (silent = false) => {
+    if (!silent) setLoading(true);
+    setRefreshing(silent);
+    try {
+      const [items, folderItems] = await Promise.all([
+        listScripts(),
+        listWorkspaceDirectories(),
+      ]);
+      setScripts(items);
+      setDirectories(folderItems);
+      setApiOnline(true);
+      setSelectedId((current) => {
+        if (current && items.some((item) => item.script_id === current)) {
+          selectedIdRef.current = current;
+          return current;
+        }
+        const nextSelectedId = (
+          items.find((item) => item.script_type === "notebook")?.script_id
+          ?? items[0]?.script_id
+          ?? null
+        );
+        selectedIdRef.current = nextSelectedId;
+        return nextSelectedId;
+      });
+    } catch (error) {
+      setApiOnline(false);
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "脚本列表加载失败",
+      });
+    } finally {
+      setLoading(false);
+      setRefreshing(false);
+    }
+  };
+
+  useEffect(() => {
+    void load();
+  }, []);
+
+  useEffect(() => {
+    if (!toast) return;
+    const timer = window.setTimeout(() => setToast(null), 3200);
+    return () => window.clearTimeout(timer);
+  }, [toast]);
+
+  useEffect(() => {
+    if (!contextMenu) return;
+    const close = () => setContextMenu(null);
+    const closeOnEscape = (event: KeyboardEvent) => {
+      if (event.key === "Escape") close();
+    };
+    window.addEventListener("pointerdown", close);
+    window.addEventListener("blur", close);
+    window.addEventListener("resize", close);
+    window.addEventListener("scroll", close, true);
+    window.addEventListener("keydown", closeOnEscape);
+    return () => {
+      window.removeEventListener("pointerdown", close);
+      window.removeEventListener("blur", close);
+      window.removeEventListener("resize", close);
+      window.removeEventListener("scroll", close, true);
+      window.removeEventListener("keydown", closeOnEscape);
+    };
+  }, [contextMenu]);
+
+  useEffect(() => {
+    editSessionRef.current = editSession;
+  }, [editSession]);
+
+  useEffect(() => {
+    if (!selectedId) {
+      setVersions([]);
+      return;
+    }
+    let ignore = false;
+    setVersionsLoading(true);
+    void listScriptVersions(selectedId)
+      .then((items) => {
+        if (!ignore) setVersions(items);
+      })
+      .catch((error) => {
+        if (!ignore) {
+          setToast({
+            tone: "error",
+            message: error instanceof Error ? error.message : "版本列表加载失败",
+          });
+        }
+      })
+      .finally(() => {
+        if (!ignore) setVersionsLoading(false);
+      });
+    return () => {
+      ignore = true;
+    };
+  }, [selectedId]);
+
+  useEffect(() => {
+    if (!editSession) return;
+    const intervalSeconds = Math.max(
+      5,
+      editSession.heartbeat_interval_seconds || 15,
+    );
+    let heartbeatRunning = false;
+    const timer = window.setInterval(() => {
+      if (heartbeatRunning) return;
+      const current = editSessionRef.current;
+      if (!current || current.edit_session_id !== editSession.edit_session_id) {
+        return;
+      }
+      heartbeatRunning = true;
+      void heartbeatFileLock(current)
+        .then((updated) => {
+          setEditSession((active) => active
+            && active.edit_session_id === updated.edit_session_id
+            ? {
+                ...active,
+                session_status: updated.session_status,
+                expires_at: updated.expires_at,
+              }
+            : active);
+        })
+        .catch((error) => {
+          setEditSession(null);
+          setEmbeddedJupyterUrl(null);
+          setToast({
+            tone: "error",
+            message: `编辑锁心跳已中断：${
+              error instanceof Error ? error.message : "请重新打开文件"
+            }`,
+          });
+        })
+        .finally(() => {
+          heartbeatRunning = false;
+        });
+    }, intervalSeconds * 1000);
+    return () => window.clearInterval(timer);
+  }, [editSession?.edit_session_id, editSession?.heartbeat_interval_seconds]);
+
+  useEffect(() => {
+    if (!editSession?.ticket_expires_at) return;
+    const expiresAt = new Date(editSession.ticket_expires_at).getTime();
+    const renewAfter = Math.max(15_000, expiresAt - Date.now() - 60_000);
+    const timer = window.setTimeout(() => {
+      const current = editSessionRef.current;
+      if (!current || current.edit_session_id !== editSession.edit_session_id) {
+        return;
+      }
+      void createJupyterAccessTicket(current)
+        .then((ticket) => {
+          setEditSession((active) => active
+            && active.edit_session_id === ticket.edit_session_id
+            ? { ...active, ticket_expires_at: ticket.expires_at }
+            : active);
+        })
+        .catch((error) => {
+          setToast({
+            tone: "error",
+            message: `Jupyter 访问票据续签失败：${
+              error instanceof Error ? error.message : "请重新打开文件"
+            }`,
+          });
+        });
+    }, renewAfter);
+    return () => window.clearTimeout(timer);
+  }, [editSession?.edit_session_id, editSession?.ticket_expires_at]);
+
+  useEffect(() => {
+    if (!editSession) return;
+    const handleUnload = () => {
+      const current = editSessionRef.current;
+      if (current) releaseFileLockOnUnload(current);
+    };
+    window.addEventListener("beforeunload", handleUnload);
+    return () => window.removeEventListener("beforeunload", handleUnload);
+  }, [editSession?.edit_session_id]);
+
+  const filteredScripts = useMemo(() => {
+    const normalized = keyword.trim().toLocaleLowerCase();
+    if (!normalized) return scripts;
+    return scripts.filter((item) =>
+      item.script_name.toLocaleLowerCase().includes(normalized),
+    );
+  }, [keyword, scripts]);
+
+  const memberScriptGroups = [...demoUsers]
+    .sort((left, right) => (
+      Number(right.userId === demoContext.userId)
+      - Number(left.userId === demoContext.userId)
+    ))
+    .map((user) => {
+    const memberScripts = filteredScripts.filter(
+      (item) => item.owner_user_id === user.userId,
+    );
+    const inferred = inferredDirectories(memberScripts);
+    return {
+      user,
+      scripts: memberScripts,
+      directories: user.userId === demoContext.userId
+        ? mergeDirectories(directories, inferred)
+        : inferred,
+    };
+    });
+  const selected = scripts.find((item) => item.script_id === selectedId) ?? null;
+
+  const selectScript = (scriptId: string | null) => {
+    if (selectedIdRef.current !== scriptId) {
+      editorOpenRequestRef.current += 1;
+      setEditorOpenError(null);
+    }
+    selectedIdRef.current = scriptId;
+    setSelectedId(scriptId);
+  };
+
+  const openScriptEditor = async (
+    script: ScriptItem,
+    showToast = true,
+  ) => {
+    if (editorOpeningRef.current) return;
+    editorOpeningRef.current = true;
+    const requestId = editorOpenRequestRef.current + 1;
+    editorOpenRequestRef.current = requestId;
+    const requestIsCurrent = () =>
+      editorOpenRequestRef.current === requestId
+      && selectedIdRef.current === script.script_id;
+    const clearSessionIfActive = (session: ActiveEditSession) => {
+      if (
+        editSessionRef.current?.edit_session_id === session.edit_session_id
+      ) {
+        setEmbeddedJupyterUrl(null);
+        setEditSession(null);
+        editSessionRef.current = null;
+      }
+    };
+
+    setEditBusy(true);
+    setEditorOpenError((current) =>
+      current?.scriptId === script.script_id ? null : current);
+    let active = editSessionRef.current;
+    let newlyAcquired = false;
+    try {
+      if (active && active.script_id !== script.script_id) {
+        await releaseFileLock(active);
+        setEmbeddedJupyterUrl(null);
+        setEditSession(null);
+        editSessionRef.current = null;
+        active = null;
+      }
+      if (!requestIsCurrent()) return;
+
+      if (!active) {
+        active = await acquireFileLock(script);
+        newlyAcquired = true;
+      }
+      if (!requestIsCurrent()) {
+        if (active) {
+          await releaseFileLock(active);
+          clearSessionIfActive(active);
+        }
+        return;
+      }
+
+      const ticket = await createJupyterAccessTicket(active);
+      if (!requestIsCurrent()) {
+        await releaseFileLock(active);
+        clearSessionIfActive(active);
+        return;
+      }
+
+      const readySession = {
+        ...active,
+        ticket_expires_at: ticket.expires_at,
+      };
+      setEditSession(readySession);
+      editSessionRef.current = readySession;
+      setEmbeddedJupyterUrl(ticket.jupyter_url);
+      if (showToast) {
+        setToast({
+          tone: "success",
+          message: `${script.script_name} 已打开，Jupyter 已嵌入当前工作区`,
+        });
+      }
+    } catch (error) {
+      if (newlyAcquired && active) {
+        try {
+          await releaseFileLock(active);
+        } catch {
+          // The database lease is the final safety net if compensation cannot reach Runtime.
+        }
+        setEditSession(null);
+        editSessionRef.current = null;
+      }
+      setEmbeddedJupyterUrl(null);
+      if (requestIsCurrent()) {
+        const message = error instanceof Error ? error.message : "打开编辑器失败";
+        setEditorOpenError({ scriptId: script.script_id, message });
+        if (showToast) {
+          setToast({ tone: "error", message });
+        }
+      }
+    } finally {
+      editorOpeningRef.current = false;
+      setEditBusy(false);
+    }
+  };
+
+  useEffect(() => {
+    if (
+      activePage !== "scripts"
+      || !selected
+      || selected.script_type !== "notebook"
+      || editBusy
+      || editorOpenError?.scriptId === selected.script_id
+      || (
+        editSession?.script_id === selected.script_id
+        && embeddedJupyterUrl
+      )
+    ) {
+      return;
+    }
+
+    void openScriptEditor(selected, false);
+  }, [
+    activePage,
+    editBusy,
+    editSession?.script_id,
+    editorOpenError?.scriptId,
+    embeddedJupyterUrl,
+    selected?.script_id,
+    selected?.script_type,
+  ]);
+
+  const endEditing = async (closeTab = false, showToast = true) => {
+    editorOpenRequestRef.current += 1;
+    setEditorOpenError(null);
+    const active = editSessionRef.current;
+    if (!active) {
+      if (closeTab) selectScript(null);
+      return;
+    }
+    setEditBusy(true);
+    try {
+      await releaseFileLock(active);
+      setEmbeddedJupyterUrl(null);
+      setEditSession(null);
+      editSessionRef.current = null;
+      if (closeTab) selectScript(null);
+      if (showToast) {
+        setToast({
+          tone: "success",
+          message: `${active.script_name} 的编辑锁已释放`,
+        });
+      }
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "释放编辑锁失败",
+      });
+    } finally {
+      setEditBusy(false);
+    }
+  };
+
+  useEffect(() => {
+    const active = editSessionRef.current;
+    if (
+      !active
+      || !selected
+      || selected.script_type === "notebook"
+      || selected.script_id === active.script_id
+      || editBusy
+    ) {
+      return;
+    }
+    void endEditing(false, false);
+  }, [editBusy, selected?.script_id, selected?.script_type]);
+
+  useEffect(() => {
+    if (
+      activePage === "scripts"
+      || editBusy
+      || (!editSessionRef.current && !editorOpeningRef.current)
+    ) {
+      return;
+    }
+    void endEditing(true, false);
+  }, [activePage, editBusy]);
+
+  const openPublishDialog = (script: ScriptItem) => {
+    setPublishTarget(script);
+    setReleaseNote("");
+    setPublishVisibility(
+      script.visibility === "private" ? "private" : "workspace",
+    );
+  };
+
+  const submitPublish = async (event: FormEvent) => {
+    event.preventDefault();
+    if (!publishTarget) return;
+    setPublishing(true);
+    try {
+      const version = await publishScriptVersion({
+        script: publishTarget,
+        releaseNote,
+        visibility: publishVisibility,
+      });
+      setVersions((items) => [
+        version,
+        ...items.filter((item) => item.versions_id !== version.versions_id),
+      ]);
+      setPublishTarget(null);
+      setPublishedVersion(version);
+      setToast({
+        tone: "success",
+        message: `${version.version_label} 稳定版本发布成功`,
+      });
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "稳定版本发布失败",
+      });
+    } finally {
+      setPublishing(false);
+    }
+  };
+
+  const submitCreate = async (event: FormEvent) => {
+    event.preventDefault();
+    if (!form.name.trim()) return;
+    setCreating(true);
+    try {
+      const created = await createScript(form);
+      setScripts((items) => [created, ...items]);
+      selectScript(created.script_id);
+      setCreateOpen(false);
+      setForm(initialForm);
+      setToast({
+        tone: "success",
+        message: `${created.script_name} 已创建`,
+      });
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "创建失败",
+      });
+    } finally {
+      setCreating(false);
+    }
+  };
+
+  const openCreateDialog = (
+    parentPath = "",
+    scriptType: ScriptType = "notebook",
+  ) => {
+    setContextMenu(null);
+    setForm({
+      ...initialForm,
+      parentPath,
+      scriptType,
+    });
+    setCreateOpen(true);
+  };
+
+  const openFolderDialog = (parentPath = "") => {
+    setContextMenu(null);
+    setFolderDialog({
+      open: true,
+      parentPath,
+      name: "",
+      busy: false,
+    });
+  };
+
+  const chooseUpload = (parentPath = "") => {
+    setContextMenu(null);
+    setUploadParentPath(parentPath);
+    uploadInputRef.current?.click();
+  };
+
+  const handleUpload = async (event: ChangeEvent<HTMLInputElement>) => {
+    const files = Array.from(event.target.files ?? []);
+    event.target.value = "";
+    if (files.length === 0) return;
+    setUploading(true);
+    let lastCreated: ScriptItem | null = null;
+    try {
+      for (const file of files) {
+        lastCreated = await uploadScript(file, uploadParentPath);
+      }
+      await load(true);
+      if (lastCreated) selectScript(lastCreated.script_id);
+      setToast({
+        tone: "success",
+        message: `${files.length} 个文件已上传到${
+          uploadParentPath ? ` ${uploadParentPath}` : "当前目录"
+        }`,
+      });
+    } catch (error) {
+      await load(true);
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "文件上传失败",
+      });
+    } finally {
+      setUploading(false);
+    }
+  };
+
+  const submitFolder = async (event: FormEvent) => {
+    event.preventDefault();
+    if (!folderDialog.name.trim()) return;
+    setFolderDialog((current) => ({ ...current, busy: true }));
+    try {
+      await createWorkspaceDirectory(
+        folderDialog.name.trim(),
+        folderDialog.parentPath,
+      );
+      await load(true);
+      setFolderDialog({
+        open: false,
+        parentPath: "",
+        name: "",
+        busy: false,
+      });
+      setToast({
+        tone: "success",
+        message: `${folderDialog.name.trim()} 文件夹已创建`,
+      });
+    } catch (error) {
+      setFolderDialog((current) => ({ ...current, busy: false }));
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "文件夹创建失败",
+      });
+    }
+  };
+
+  const removeScript = async (script: ScriptItem) => {
+    setContextMenu(null);
+    if (!window.confirm(`确定删除文件“${script.script_name}”吗？稳定版本会保留。`)) {
+      return;
+    }
+    if (editSessionRef.current?.script_id === script.script_id) {
+      await endEditing(false, false);
+      if (editSessionRef.current?.script_id === script.script_id) return;
+    }
+    try {
+      await deleteScript(script.script_id);
+      if (selectedIdRef.current === script.script_id) selectScript(null);
+      await load(true);
+      setToast({
+        tone: "success",
+        message: `${script.script_name} 已删除`,
+      });
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "文件删除失败",
+      });
+    }
+  };
+
+  const removeDirectory = async (path: string) => {
+    setContextMenu(null);
+    if (!window.confirm(`确定递归删除文件夹“${path}”及其内容吗？稳定版本会保留。`)) {
+      return;
+    }
+    const activeScript = scripts.find(
+      (item) => item.script_id === editSessionRef.current?.script_id,
+    );
+    if (
+      activeScript
+      && (
+        ownedScriptPath(activeScript) === path
+        || ownedScriptPath(activeScript).startsWith(`${path}/`)
+      )
+    ) {
+      await endEditing(false, false);
+      if (editSessionRef.current?.script_id === activeScript.script_id) return;
+    }
+    try {
+      const result = await deleteWorkspaceDirectory(path);
+      const selectedScript = scripts.find(
+        (item) => item.script_id === selectedIdRef.current,
+      );
+      if (
+        selectedScript
+        && ownedScriptPath(selectedScript).startsWith(`${path}/`)
+      ) {
+        selectScript(null);
+      }
+      await load(true);
+      setToast({
+        tone: "success",
+        message: `${path} 已删除（含 ${result.deleted_scripts} 个脚本）`,
+      });
+    } catch (error) {
+      setToast({
+        tone: "error",
+        message: error instanceof Error ? error.message : "文件夹删除失败",
+      });
+    }
+  };
+
+  const showContextMenu = (
+    event: ReactMouseEvent,
+    target: Omit<ContextMenuState, "x" | "y">,
+  ) => {
+    event.preventDefault();
+    event.stopPropagation();
+    const width = 188;
+    const height = target.kind === "file" ? 92 : 190;
+    setContextMenu({
+      ...target,
+      x: Math.min(event.clientX, window.innerWidth - width - 8),
+      y: Math.min(event.clientY, window.innerHeight - height - 8),
+    });
+  };
+
+  return (
+    <div className="app-shell">
+      <aside className="sidebar">
+        <div className="brand">
+          <span className="brand__mark"><Icon name="brand" size={31} /></span>
+          <span className="brand__name">模型实验开发平台</span>
+        </div>
+
+        <nav className="navigation" aria-label="主导航">
+          {navigation.map((item) => (
+            <button
+              className={`nav-item${
+                item.page === activePage ? " nav-item--active" : ""
+              }`}
+              key={item.label}
+              type="button"
+              onClick={() => {
+                if (item.page !== "scripts") {
+                  if (editSessionRef.current) {
+                    void endEditing(true);
+                  } else {
+                    selectScript(null);
+                  }
+                }
+                navigate(pathForPage(item.page));
+              }}
+            >
+              <Icon name={item.icon} size={19} />
+              <span>{item.label}</span>
+            </button>
+          ))}
+        </nav>
+
+        <button className="sidebar-footer" type="button">
+          <Icon name="menu" size={19} />
+          <span>收起菜单</span>
+        </button>
+      </aside>
+
+      <main className="main-area">
+        <header className="topbar">
+          <div className="page-title">
+            <button className="icon-button icon-button--back" type="button">
+              <Icon name="chevron" size={19} />
+            </button>
+            <div>
+              <span className="page-title__eyebrow">开发工作区</span>
+              <h1>{{
+                home: "工作台",
+                scripts: "构建脚本",
+                schedules: "调度配置",
+                system: "系统管理",
+              }[activePage]}</h1>
+            </div>
+          </div>
+          <div className="topbar__actions">
+            <div className="api-state">
+              <span className={`api-state__dot${apiOnline ? " is-online" : ""}`} />
+              {apiOnline ? "服务已连接" : "服务未连接"}
+            </div>
+            <div className="topbar-menu-wrap">
+              <button className="workspace-switcher" type="button" onClick={() => { setWorkspaceMenuOpen((value) => !value); setUserMenuOpen(false); }}>
+                <span className="workspace-switcher__icon"><Icon name="workspace" size={18} /></span>
+                <span><small>当前 Workspace</small><strong>{demoContext.workspaceName}</strong></span>
+                <Icon name="chevron" size={15} />
+              </button>
+              {workspaceMenuOpen && (
+                <div className="topbar-dropdown">
+                  {demoWorkspaces.map((workspace) => (
+                    <button className={workspace.workspaceId === demoContext.workspaceId ? "is-selected" : ""} type="button" key={workspace.workspaceId} onClick={() => { setDemoContext({ workspace }); window.location.reload(); }}>
+                      <Icon name="workspace" size={15} /><span><strong>{workspace.workspaceName}</strong><small>{workspace.workspaceId === demoContext.workspaceId ? "当前使用" : "点击切换"}</small></span>
+                    </button>
+                  ))}
+                </div>
+              )}
+            </div>
+            <div className="topbar-menu-wrap">
+              <button className="user-menu" type="button" onClick={() => { setUserMenuOpen((value) => !value); setWorkspaceMenuOpen(false); }}>
+                <span className="avatar">{demoContext.userName.slice(0, 1)}</span>
+                <span className="user-menu__copy"><strong>{demoContext.userName}</strong><small>{demoContext.roleName}</small></span>
+                <Icon name="chevron" size={15} />
+              </button>
+              {userMenuOpen && (
+                <div className="topbar-dropdown topbar-dropdown--users">
+                  {demoUsers.map((user) => (
+                    <button className={user.userId === demoContext.userId ? "is-selected" : ""} type="button" key={user.userId} onClick={() => { setDemoContext({ user }); window.location.reload(); }}>
+                      <span className="avatar">{user.userName.slice(0, 1)}</span><span><strong>{user.userName}</strong><small>{user.roleName} · {user.username}</small></span>
+                    </button>
+                  ))}
+                </div>
+              )}
+            </div>
+          </div>
+        </header>
+
+        {activePage === "scripts" ? (
+        <section className="workspace-layout">
+          <aside className="explorer">
+            <div className="explorer__header">
+              <div>
+                <h2>脚本目录</h2>
+                <span>{scripts.length} 个工作副本</span>
+              </div>
+              <div className="explorer__actions">
+                <button
+                  className="text-button"
+                  type="button"
+                  disabled={uploading}
+                  onClick={() => chooseUpload("")}
+                >
+                  <Icon name="upload" size={15} />
+                  {uploading ? "上传中…" : "上传"}
+                </button>
+                <input
+                  ref={uploadInputRef}
+                  className="visually-hidden"
+                  type="file"
+                  accept=".py,.ipynb"
+                  multiple
+                  onChange={(event) => void handleUpload(event)}
+                />
+                <button
+                  className="text-button"
+                  type="button"
+                  onClick={() => openCreateDialog("")}
+                >
+                  <Icon name="plus" size={16} />
+                  新建
+                </button>
+              </div>
+            </div>
+
+            <div className="search-box">
+              <Icon name="search" size={17} />
+              <input
+                aria-label="搜索脚本"
+                placeholder="搜索脚本名称"
+                value={keyword}
+                onChange={(event) => setKeyword(event.target.value)}
+              />
+              <button
+                className={refreshing ? "is-spinning" : ""}
+                type="button"
+                aria-label="刷新脚本"
+                onClick={() => void load(true)}
+              >
+                <Icon name="refresh" size={16} />
+              </button>
+            </div>
+
+            <div className="tree-scroll">
+              {loading ? (
+                <div className="tree-skeleton">
+                  <span /><span /><span /><span />
+                </div>
+              ) : (
+                <>
+                  {memberScriptGroups.map((group) => (
+                    <WorkspaceTreeGroup
+                      key={group.user.userId}
+                      title={`${group.user.userName}的文件`}
+                      scripts={group.scripts}
+                      directories={group.directories}
+                      selectedId={selectedId}
+                      onSelect={selectScript}
+                      onContextMenu={
+                        group.user.userId === demoContext.userId
+                          ? showContextMenu
+                          : undefined
+                      }
+                      readOnly={group.user.userId !== demoContext.userId}
+                    />
+                  ))}
+                  {filteredScripts.length === 0 && (
+                    <div className="tree-empty">
+                      <span className="tree-empty__icon">
+                        <Icon name="script" size={24} />
+                      </span>
+                      <strong>{keyword ? "没有匹配脚本" : "还没有构建脚本"}</strong>
+                      <p>
+                        {keyword
+                          ? "换个关键词试试"
+                          : "新建 Notebook 或 Python 脚本开始实验"}
+                      </p>
+                      {!keyword && (
+                        <button type="button" onClick={() => openCreateDialog("")}>
+                          <Icon name="plus" size={15} />
+                          新建脚本
+                        </button>
+                      )}
+                    </div>
+                  )}
+                </>
+              )}
+            </div>
+          </aside>
+
+          <section className="editor-area">
+            {selected ? (
+              <ScriptWorkspace
+                key={selected.script_id}
+                script={selected}
+                editSession={
+                  editSession?.script_id === selected.script_id
+                    ? editSession
+                    : null
+                }
+                jupyterUrl={
+                  editSession?.script_id === selected.script_id
+                    ? embeddedJupyterUrl
+                    : null
+                }
+                editBusy={editBusy}
+                openError={
+                  editorOpenError?.scriptId === selected.script_id
+                    ? editorOpenError.message
+                    : null
+                }
+                latestVersion={versions[0] ?? null}
+                versionsLoading={versionsLoading}
+                onOpenEditor={() => void openScriptEditor(selected)}
+                onEndEditing={() => void endEditing()}
+                onClose={() => {
+                  if (
+                    editSessionRef.current?.script_id === selected.script_id
+                  ) {
+                    void endEditing(true);
+                  } else {
+                    selectScript(null);
+                  }
+                }}
+                onPublish={() => openPublishDialog(selected)}
+                onInfo={setToast}
+              />
+            ) : (
+              <div className="welcome-panel">
+                <div className="welcome-panel__visual">
+                  <Icon name="script" size={42} />
+                </div>
+                <span className="welcome-panel__label">构建脚本工作台</span>
+                <h2>创建你的第一个模型脚本</h2>
+                <p>
+                  通过 Notebook 完成数据探索，或使用 Python
+                  脚本构建可调度的处理任务。
+                </p>
+                <button className="primary-button" onClick={() => openCreateDialog("")}>
+                  <Icon name="plus" size={17} />
+                  新建构建脚本
+                </button>
+              </div>
+            )}
+          </section>
+        </section>
+        ) : activePage === "schedules" ? (
+          <SchedulePage
+            key={`${demoContext.userId}-${demoContext.workspaceId}`}
+            onNotify={setToast}
+            onConnectionChange={setApiOnline}
+          />
+        ) : activePage === "system" ? (
+          <SystemAdminPage
+            key={`${demoContext.userId}-${demoContext.workspaceId}`}
+            onNotify={setToast}
+            onConnectionChange={setApiOnline}
+          />
+        ) : (
+          <DashboardPage
+            scriptCount={scripts.length}
+            online={apiOnline}
+            onNavigate={(page) => {
+              navigate(pathForPage(page));
+            }}
+          />
+        )}
+      </main>
+
+      {createOpen && (
+        <div className="modal-backdrop" role="presentation">
+          <section className="modal" role="dialog" aria-modal="true">
+            <div className="modal__header">
+              <div>
+                <span className="modal__eyebrow">工作副本</span>
+                <h2>新建构建脚本</h2>
+              </div>
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="关闭"
+                onClick={() => setCreateOpen(false)}
+              >
+                <Icon name="close" />
+              </button>
+            </div>
+            <form onSubmit={submitCreate}>
+              <div className="destination-chip">
+                <Icon name="folder" size={16} />
+                保存到：{form.parentPath || "个人根目录"}
+              </div>
+              <label className="form-field">
+                <span>脚本名称</span>
+                <input
+                  autoFocus
+                  maxLength={255}
+                  placeholder={form.scriptType === "notebook"
+                    ? "例如：数据探索"
+                    : "例如：data_process"}
+                  value={form.name}
+                  onChange={(event) =>
+                    setForm((current) => ({
+                      ...current,
+                      name: event.target.value,
+                    }))}
+                />
+                <small>
+                  系统会自动补充
+                  {form.scriptType === "notebook" ? " .ipynb" : " .py"} 后缀
+                </small>
+              </label>
+
+              <fieldset className="type-picker">
+                <legend>脚本类型</legend>
+                <button
+                  className={form.scriptType === "notebook" ? "is-selected" : ""}
+                  type="button"
+                  onClick={() => setForm((current) => ({
+                    ...current,
+                    scriptType: "notebook",
+                  }))}
+                >
+                  <span className="type-picker__icon type-picker__icon--notebook">
+                    <Icon name="notebook" size={22} />
+                  </span>
+                  <span>
+                    <strong>Jupyter Notebook</strong>
+                    <small>交互式数据探索与模型实验</small>
+                  </span>
+                  <span className="type-picker__check">
+                    <Icon name="check" size={14} />
+                  </span>
+                </button>
+                <button
+                  className={form.scriptType === "python" ? "is-selected" : ""}
+                  type="button"
+                  onClick={() => setForm((current) => ({
+                    ...current,
+                    scriptType: "python",
+                  }))}
+                >
+                  <span className="type-picker__icon type-picker__icon--python">
+                    <Icon name="python" size={23} />
+                  </span>
+                  <span>
+                    <strong>Python 脚本</strong>
+                    <small>批处理、训练和模型调用任务</small>
+                  </span>
+                  <span className="type-picker__check">
+                    <Icon name="check" size={14} />
+                  </span>
+                </button>
+              </fieldset>
+
+              <label className="form-field">
+                <span>可见范围</span>
+                <select
+                  value={form.visibility}
+                  onChange={(event) =>
+                    setForm((current) => ({
+                      ...current,
+                      visibility: event.target.value as Visibility,
+                    }))}
+                >
+                  <option value="private">仅自己可见</option>
+                  <option value="workspace">Workspace 成员可见</option>
+                  <option value="public">公开</option>
+                </select>
+              </label>
+
+              <div className="modal__footer">
+                <button
+                  className="secondary-button"
+                  type="button"
+                  onClick={() => setCreateOpen(false)}
+                >
+                  取消
+                </button>
+                <button
+                  className="primary-button"
+                  type="submit"
+                  disabled={creating || !form.name.trim()}
+                >
+                  {creating ? <span className="button-spinner" /> : <Icon name="plus" size={16} />}
+                  {creating ? "正在创建…" : "创建脚本"}
+                </button>
+              </div>
+            </form>
+          </section>
+        </div>
+      )}
+
+      {folderDialog.open && (
+        <div className="modal-backdrop" role="presentation">
+          <section className="modal modal--compact" role="dialog" aria-modal="true">
+            <div className="modal__header">
+              <div>
+                <span className="modal__eyebrow">WORKSPACE</span>
+                <h2>新建文件夹</h2>
+              </div>
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="关闭"
+                onClick={() => setFolderDialog((current) => ({
+                  ...current,
+                  open: false,
+                }))}
+              >
+                <Icon name="close" />
+              </button>
+            </div>
+            <form onSubmit={submitFolder}>
+              <div className="destination-chip">
+                <Icon name="folder" size={16} />
+                创建到：{folderDialog.parentPath || "个人根目录"}
+              </div>
+              <label className="form-field">
+                <span>文件夹名称</span>
+                <input
+                  autoFocus
+                  maxLength={255}
+                  placeholder="例如：模型训练"
+                  value={folderDialog.name}
+                  onChange={(event) => setFolderDialog((current) => ({
+                    ...current,
+                    name: event.target.value,
+                  }))}
+                />
+              </label>
+              <div className="modal__footer">
+                <button
+                  className="secondary-button"
+                  type="button"
+                  onClick={() => setFolderDialog((current) => ({
+                    ...current,
+                    open: false,
+                  }))}
+                >
+                  取消
+                </button>
+                <button
+                  className="primary-button"
+                  type="submit"
+                  disabled={folderDialog.busy || !folderDialog.name.trim()}
+                >
+                  {folderDialog.busy
+                    ? <span className="button-spinner" />
+                    : <Icon name="folder" size={16} />}
+                  {folderDialog.busy ? "正在创建…" : "创建文件夹"}
+                </button>
+              </div>
+            </form>
+          </section>
+        </div>
+      )}
+
+      {contextMenu && (
+        <div
+          className="tree-context-menu"
+          role="menu"
+          style={{ left: contextMenu.x, top: contextMenu.y }}
+          onPointerDown={(event) => event.stopPropagation()}
+        >
+          {contextMenu.kind === "file" && contextMenu.script ? (
+            <>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => {
+                  selectScript(contextMenu.script!.script_id);
+                  setContextMenu(null);
+                }}
+              >
+                <Icon name="script" size={16} />
+                打开文件
+              </button>
+              <button
+                className="is-danger"
+                type="button"
+                role="menuitem"
+                onClick={() => void removeScript(contextMenu.script!)}
+              >
+                <Icon name="close" size={16} />
+                删除文件
+              </button>
+            </>
+          ) : (
+            <>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => openCreateDialog(contextMenu.path, "notebook")}
+              >
+                <Icon name="notebook" size={16} />
+                新建 Notebook
+              </button>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => openCreateDialog(contextMenu.path, "python")}
+              >
+                <Icon name="python" size={16} />
+                新建 Python 文件
+              </button>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => openFolderDialog(contextMenu.path)}
+              >
+                <Icon name="folder" size={16} />
+                新建文件夹
+              </button>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => chooseUpload(contextMenu.path)}
+              >
+                <Icon name="upload" size={16} />
+                上传到此处
+              </button>
+              {contextMenu.kind === "directory" && (
+                <>
+                  <span className="tree-context-menu__separator" />
+                  <button
+                    className="is-danger"
+                    type="button"
+                    role="menuitem"
+                    onClick={() => void removeDirectory(contextMenu.path)}
+                  >
+                    <Icon name="close" size={16} />
+                    删除文件夹
+                  </button>
+                </>
+              )}
+            </>
+          )}
+        </div>
+      )}
+
+      {publishTarget && (
+        <div className="modal-backdrop" role="presentation">
+          <section className="modal publish-modal" role="dialog" aria-modal="true">
+            <div className="modal__header">
+              <div>
+                <span className="modal__eyebrow">不可变制品</span>
+                <h2>发布稳定版本</h2>
+              </div>
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="关闭"
+                onClick={() => setPublishTarget(null)}
+              >
+                <Icon name="close" />
+              </button>
+            </div>
+            <form onSubmit={submitPublish}>
+              <div className="publish-source">
+                <span className={`file-icon file-icon--${publishTarget.script_type}`}>
+                  <Icon name={scriptIcon(publishTarget)} size={18} />
+                </span>
+                <span>
+                  <strong>{publishTarget.script_name}</strong>
+                  <small>当前 Workspace 工作副本</small>
+                </span>
+              </div>
+              <label className="form-field">
+                <span>发布说明</span>
+                <textarea
+                  maxLength={1000}
+                  placeholder="例如：完成数据清洗和特征工程"
+                  value={releaseNote}
+                  onChange={(event) => setReleaseNote(event.target.value)}
+                />
+                <small>稳定版本内容不可修改，可作为后续调度节点输入。</small>
+              </label>
+              <label className="form-field">
+                <span>可见范围</span>
+                <select
+                  value={publishVisibility}
+                  onChange={(event) =>
+                    setPublishVisibility(event.target.value as Visibility)}
+                >
+                  <option value="private">仅自己可见</option>
+                  <option value="workspace">Workspace 成员可见</option>
+                  <option value="public">公开</option>
+                </select>
+              </label>
+              <div className="modal__footer">
+                <button
+                  className="secondary-button"
+                  type="button"
+                  onClick={() => setPublishTarget(null)}
+                >
+                  取消
+                </button>
+                <button
+                  className="primary-button"
+                  type="submit"
+                  disabled={publishing}
+                >
+                  {publishing
+                    ? <span className="button-spinner" />
+                    : <Icon name="release" size={16} />}
+                  {publishing ? "正在发布…" : "确认发布"}
+                </button>
+              </div>
+            </form>
+          </section>
+        </div>
+      )}
+
+      {publishedVersion && (
+        <div className="modal-backdrop" role="presentation">
+          <section className="modal version-receipt" role="dialog" aria-modal="true">
+            <div className="version-receipt__check">
+              <Icon name="check" size={28} />
+            </div>
+            <span className="modal__eyebrow">STABLE VERSION</span>
+            <h2>稳定版本发布成功</h2>
+            <p>
+              {publishedVersion.version_label} 已成为不可变制品，
+              后续调度将通过 versions_id 引用它。
+            </p>
+            <div className="version-id-box">
+              <span>versions_id</span>
+              <code>{publishedVersion.versions_id}</code>
+              <button
+                type="button"
+                onClick={() => {
+                  void navigator.clipboard.writeText(
+                    publishedVersion.versions_id,
+                  );
+                  setToast({ tone: "success", message: "versions_id 已复制" });
+                }}
+              >
+                复制
+              </button>
+            </div>
+            <button
+              className="primary-button version-receipt__close"
+              type="button"
+              onClick={() => setPublishedVersion(null)}
+            >
+              完成
+            </button>
+          </section>
+        </div>
+      )}
+
+      {toast && (
+        <div className={`toast toast--${toast.tone}`} role="status">
+          <span>
+            <Icon name={toast.tone === "success" ? "check" : "info"} size={17} />
+          </span>
+          {toast.message}
+        </div>
+      )}
+    </div>
+  );
+}
+
+function WorkspaceTreeGroup({
+  title,
+  scripts,
+  directories,
+  selectedId,
+  onSelect,
+  onContextMenu,
+  readOnly = false,
+}: {
+  title: string;
+  scripts: ScriptItem[];
+  directories: WorkspaceDirectory[];
+  selectedId: string | null;
+  onSelect: (id: string) => void;
+  onContextMenu?: (
+    event: ReactMouseEvent,
+    target: Omit<ContextMenuState, "x" | "y">,
+  ) => void;
+  readOnly?: boolean;
+}) {
+  const [open, setOpen] = useState(true);
+  return (
+    <div className="tree-group">
+      <button
+        className={`tree-group__title${open ? " is-open" : ""}`}
+        type="button"
+        aria-expanded={open}
+        onClick={() => setOpen((current) => !current)}
+        onContextMenu={onContextMenu
+          ? (event) => onContextMenu(event, { kind: "root", path: "" })
+          : undefined}
+      >
+        <Icon name="chevron" size={14} />
+        <Icon name="folder" size={17} />
+        <span>{title}</span>
+        <em>{scripts.length}</em>
+      </button>
+      {open && (
+        <div className="tree-group__items">
+          <WorkspaceTreeItems
+            path=""
+            depth={0}
+            scripts={scripts}
+            directories={directories}
+            selectedId={selectedId}
+            onSelect={onSelect}
+            onContextMenu={onContextMenu}
+          />
+          {scripts.length === 0 && directories.length === 0 && (
+            <p className="tree-group__empty">
+              {readOnly ? "暂无文件" : "右键此目录即可新建或上传"}
+            </p>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}
+
+function WorkspaceTreeItems({
+  path,
+  depth,
+  scripts,
+  directories,
+  selectedId,
+  onSelect,
+  onContextMenu,
+}: {
+  path: string;
+  depth: number;
+  scripts: ScriptItem[];
+  directories: WorkspaceDirectory[];
+  selectedId: string | null;
+  onSelect: (id: string) => void;
+  onContextMenu?: (
+    event: ReactMouseEvent,
+    target: Omit<ContextMenuState, "x" | "y">,
+  ) => void;
+}) {
+  const childDirectories = directories.filter(
+    (item) => item.parent_path === path,
+  );
+  const childScripts = scripts.filter(
+    (item) => parentOf(ownedScriptPath(item)) === path,
+  );
+  return (
+    <>
+      {childDirectories.map((directory) => (
+        <DirectoryBranch
+          key={directory.path}
+          directory={directory}
+          depth={depth}
+          scripts={scripts}
+          directories={directories}
+          selectedId={selectedId}
+          onSelect={onSelect}
+          onContextMenu={onContextMenu}
+        />
+      ))}
+      {childScripts.map((item) => (
+        <button
+          className={`script-row${
+            selectedId === item.script_id ? " script-row--active" : ""
+          }`}
+          style={{ paddingLeft: 20 + depth * 16 }}
+          key={item.script_id}
+          type="button"
+          onClick={() => onSelect(item.script_id)}
+          onContextMenu={onContextMenu
+            ? (event) => onContextMenu(event, {
+              kind: "file",
+              path: ownedScriptPath(item),
+              script: item,
+            })
+            : undefined}
+        >
+          <span className={`file-icon file-icon--${item.script_type}`}>
+            <Icon name={scriptIcon(item)} size={17} />
+          </span>
+          <span className="script-row__copy">
+            <strong title={item.script_name}>{item.script_name}</strong>
+            <small>{formatTime(item.updated_at)}</small>
+          </span>
+          {item.visibility !== "private" && (
+            <span className="visibility-dot" title="Workspace 可见" />
+          )}
+        </button>
+      ))}
+    </>
+  );
+}
+
+function DirectoryBranch({
+  directory,
+  depth,
+  scripts,
+  directories,
+  selectedId,
+  onSelect,
+  onContextMenu,
+}: {
+  directory: WorkspaceDirectory;
+  depth: number;
+  scripts: ScriptItem[];
+  directories: WorkspaceDirectory[];
+  selectedId: string | null;
+  onSelect: (id: string) => void;
+  onContextMenu?: (
+    event: ReactMouseEvent,
+    target: Omit<ContextMenuState, "x" | "y">,
+  ) => void;
+}) {
+  const [open, setOpen] = useState(true);
+  return (
+    <div className="directory-branch">
+      <button
+        className="directory-row"
+        style={{ paddingLeft: 10 + depth * 16 }}
+        type="button"
+        onClick={() => setOpen((current) => !current)}
+        onContextMenu={onContextMenu
+          ? (event) => onContextMenu(event, {
+            kind: "directory",
+            path: directory.path,
+          })
+          : undefined}
+      >
+        <span className={`directory-row__chevron${open ? " is-open" : ""}`}>
+          <Icon name="chevron" size={13} />
+        </span>
+        <Icon name="folder" size={17} />
+        <strong title={directory.path}>{directory.name}</strong>
+      </button>
+      {open && (
+        <WorkspaceTreeItems
+          path={directory.path}
+          depth={depth + 1}
+          scripts={scripts}
+          directories={directories}
+          selectedId={selectedId}
+          onSelect={onSelect}
+          onContextMenu={onContextMenu}
+        />
+      )}
+    </div>
+  );
+}
+
+function ScriptWorkspace({
+  script,
+  editSession,
+  jupyterUrl,
+  editBusy,
+  openError,
+  latestVersion,
+  versionsLoading,
+  onOpenEditor,
+  onEndEditing,
+  onClose,
+  onPublish,
+  onInfo,
+}: {
+  script: ScriptItem;
+  editSession: ActiveEditSession | null;
+  jupyterUrl: string | null;
+  editBusy: boolean;
+  openError: string | null;
+  latestVersion: StableVersion | null;
+  versionsLoading: boolean;
+  onOpenEditor: () => void;
+  onEndEditing: () => void;
+  onClose: () => void;
+  onPublish: () => void;
+  onInfo: (toast: ToastState) => void;
+}) {
+  const isNotebook = script.script_type === "notebook";
+  const isEditing = editSession?.session_status === "active";
+  return (
+    <>
+      <div className="tabbar">
+        <div className="editor-tab editor-tab--active">
+          <span className={`file-icon file-icon--${script.script_type}`}>
+            <Icon name={scriptIcon(script)} size={16} />
+          </span>
+          <span>{script.script_name}</span>
+          <button type="button" aria-label="关闭标签" onClick={onClose}>
+            <Icon name="close" size={14} />
+          </button>
+        </div>
+        <button
+          className="new-tab"
+          type="button"
+          onClick={() => onInfo({ tone: "info", message: "请从左侧选择或新建脚本" })}
+        >
+          <Icon name="plus" size={17} />
+        </button>
+      </div>
+
+      <div className="editor-toolbar">
+        <div className="editor-toolbar__path">
+          <span className={`file-icon file-icon--${script.script_type}`}>
+            <Icon name={scriptIcon(script)} size={17} />
+          </span>
+          <span>工作副本</span>
+          <Icon name="chevron" size={13} />
+          <strong>{script.script_name}</strong>
+        </div>
+        <div className="editor-toolbar__actions">
+          {isEditing ? (
+            <button
+              className="end-edit-button"
+              type="button"
+              disabled={editBusy}
+              onClick={onEndEditing}
+            >
+              {editBusy ? "正在释放…" : "结束编辑"}
+            </button>
+          ) : (
+            <button
+              type="button"
+              onClick={() => onInfo({
+                tone: "info",
+                message: "Jupyter 中保存后会直接写入 Workspace 工作副本",
+              })}
+            >
+              保存说明
+            </button>
+          )}
+          <button
+            className="release-button"
+            type="button"
+            onClick={onPublish}
+          >
+            发布稳定版
+          </button>
+          <span className={`stage-badge${isEditing ? " is-editing" : ""}`}>
+            <span />
+            {isEditing
+              ? isNotebook
+                ? "Demo 无锁模式 · Kernel 已连接"
+                : "Demo 无锁模式 · 编辑中"
+              : latestVersion
+                ? `最新 ${latestVersion.version_label}`
+                : "工作副本已就绪"}
+          </span>
+        </div>
+      </div>
+
+      <div className={`editor-canvas${isEditing && jupyterUrl ? " is-embedded" : ""}`}>
+        {isEditing && jupyterUrl ? (
+          <section className="embedded-jupyter">
+            <div className="embedded-jupyter__status">
+              <span>
+                <i />
+                Workspace Jupyter Server
+              </span>
+              <span>
+                {isNotebook ? "Notebook Session · Python 3 Kernel" : "Jupyter 文本编辑器"}
+              </span>
+              <code title={editSession.runtime_id}>
+                Runtime {editSession.runtime_id.slice(-8)}
+              </code>
+            </div>
+            <iframe
+              key={`${editSession.edit_session_id}:${jupyterUrl}`}
+              src={jupyterUrl}
+              title={`${script.script_name} Jupyter 编辑器`}
+              allow="clipboard-read; clipboard-write"
+              sandbox="allow-same-origin allow-scripts allow-forms allow-downloads allow-modals"
+              onLoad={(event) => confineJupyterFrame(event.currentTarget)}
+            />
+          </section>
+        ) : isNotebook ? (
+          <section
+            className={`editor-opening-state${openError ? " has-error" : ""}`}
+            aria-live="polite"
+          >
+            <div className="editor-opening-state__icon">
+              {openError
+                ? <Icon name="info" size={28} />
+                : <span className="button-spinner button-spinner--blue" />}
+            </div>
+            <strong>
+              {openError ? "Notebook 打开失败" : "正在打开 Notebook"}
+            </strong>
+            <p>
+              {openError
+                ? openError
+                : "正在获取编辑锁并连接 Workspace Jupyter Server…"}
+            </p>
+            {openError && (
+              <button
+                className="open-editor-button"
+                type="button"
+                disabled={editBusy}
+                onClick={onOpenEditor}
+              >
+                {editBusy
+                  ? <span className="button-spinner button-spinner--blue" />
+                  : <Icon name="refresh" size={16} />}
+                {editBusy ? "正在重试…" : "重试打开"}
+              </button>
+            )}
+          </section>
+        ) : (
+        <section className="script-overview">
+          <div className="script-overview__header">
+            <div>
+              <span className="section-kicker">
+                PYTHON SCRIPT
+              </span>
+              <h2>{script.script_name}</h2>
+              <p>{script.relative_path}</p>
+            </div>
+            <button
+              className={`open-editor-button${isEditing ? " is-editing" : ""}`}
+              type="button"
+              disabled={editBusy}
+              onClick={onOpenEditor}
+            >
+              {editBusy
+                ? <span className="button-spinner button-spinner--blue" />
+                : <Icon name="external" size={17} />}
+              {editBusy
+                ? "正在准备编辑器…"
+                : isEditing
+                  ? "继续编辑"
+                  : "打开编辑器"}
+            </button>
+          </div>
+
+          <div className="metadata-grid">
+            <div>
+              <span>脚本类型</span>
+              <strong>Python</strong>
+            </div>
+            <div>
+              <span>可见范围</span>
+              <strong>
+                {script.visibility === "workspace"
+                  ? "Workspace"
+                  : script.visibility === "public" ? "公开" : "私有"}
+              </strong>
+            </div>
+            <div>
+              <span>文件大小</span>
+              <strong>{formatBytes(script.size_bytes)}</strong>
+            </div>
+            <div>
+              <span>最近更新</span>
+              <strong>{formatTime(script.updated_at)}</strong>
+            </div>
+          </div>
+
+          <div className="preview-card">
+            <div className="preview-card__bar">
+              <div>
+                <span className="window-dot window-dot--red" />
+                <span className="window-dot window-dot--yellow" />
+                <span className="window-dot window-dot--green" />
+              </div>
+              <span>Python 预览</span>
+              <em>{isEditing ? "Jupyter 中可编辑" : "平台只读预览"}</em>
+            </div>
+            <PythonPreview />
+          </div>
+
+          <div className="integrity-row">
+            <span>
+              <Icon name="check" size={15} />
+              {isEditing ? "Demo 无锁编辑会话已连接" : "工作副本已同步"}
+            </span>
+            <span>SHA-256&nbsp; {shortHash(script.content_hash)}</span>
+            <span>
+              稳定版本&nbsp;
+              {versionsLoading
+                ? "加载中"
+                : latestVersion
+                  ? `${latestVersion.version_label} · ${latestVersion.versions_id}`
+                  : "尚未发布"}
+            </span>
+          </div>
+        </section>
+        )}
+      </div>
+    </>
+  );
+}
+
+function PythonPreview() {
+  return (
+    <div className="python-preview">
+      <div className="line-numbers">1<br />2<br />3<br />4<br />5<br />6<br />7<br />8<br />9</div>
+      <pre>
+        <span className="code-comment">"""模型实验开发平台构建脚本。"""</span>
+        {"\n\n"}<b>def</b> <span className="code-function">main</span>() -&gt; <b>None</b>:
+        {"\n"}    print(<i>"Hello, Model Platform!"</i>)
+        {"\n\n\n"}<b>if</b> __name__ == <i>"__main__"</i>:
+        {"\n"}    main()
+      </pre>
+    </div>
+  );
+}
diff --git a/frontend/app/features/schedules/SchedulePage.tsx b/frontend/app/features/schedules/SchedulePage.tsx
new file mode 100644
index 0000000..ff07ba0
--- /dev/null
+++ b/frontend/app/features/schedules/SchedulePage.tsx
@@ -0,0 +1,1951 @@
+import {
+  DragEvent,
+  FormEvent,
+  MouseEvent as ReactMouseEvent,
+  PointerEvent as ReactPointerEvent,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from "react";
+
+import {
+  ApiRequestError,
+  createSchedule,
+  createScheduleEdge,
+  createScheduleNode,
+  deleteSchedule,
+  deleteScheduleEdge,
+  deleteScheduleNode,
+  hideScheduleArtifact,
+  getSchedule,
+  listScheduleArtifacts,
+  listScheduleRuns,
+  listSchedules,
+  previewCron,
+  runScheduleNow,
+  updateSchedule,
+  updateScheduleNode,
+  validateSchedule,
+  type CronPreview,
+  type Schedule,
+  type ScheduleArtifact,
+  type ScheduleEdge,
+  type ScheduleNode,
+  type ScheduleRunSummary,
+} from "../../services/api";
+import Icon from "../../components/Icon";
+import "../../styles/schedule.css";
+
+
+type Notice = {
+  tone: "success" | "error" | "info";
+  message: string;
+};
+
+type ScheduleForm = {
+  scheduleName: string;
+  description: string;
+  triggerType: "manual" | "cron" | "api";
+  cronExpression: string;
+  timezone: string;
+  enabled: boolean;
+  maxConcurrency: string;
+  failurePolicy: "stop" | "continue";
+};
+
+type NodeForm = {
+  nodeName: string;
+  timeoutSeconds: string;
+  retryCount: string;
+  retryIntervalSec: string;
+  argumentsJson: string;
+  envRefsJson: string;
+};
+
+type DragState = {
+  nodeId: string;
+  pointerId: number;
+  startClientX: number;
+  startClientY: number;
+  originX: number;
+  originY: number;
+  moved: boolean;
+};
+
+type NodePositionDraft = {
+  position_x: number;
+  position_y: number;
+};
+
+type ScheduleContextMenu =
+  | { kind: "schedule-list"; x: number; y: number }
+  | { kind: "schedule"; x: number; y: number; schedule: Schedule }
+  | { kind: "artifact"; x: number; y: number; artifact: ScheduleArtifact }
+  | { kind: "node"; x: number; y: number; node: ScheduleNode }
+  | { kind: "edge"; x: number; y: number; edge: ScheduleEdge };
+
+type ScheduleContextMenuTarget =
+  | { kind: "schedule-list" }
+  | { kind: "schedule"; schedule: Schedule }
+  | { kind: "artifact"; artifact: ScheduleArtifact }
+  | { kind: "node"; node: ScheduleNode }
+  | { kind: "edge"; edge: ScheduleEdge };
+
+const EMPTY_SCHEDULE_FORM: ScheduleForm = {
+  scheduleName: "",
+  description: "",
+  triggerType: "manual",
+  cronExpression: "0 9 * * *",
+  timezone: "Asia/Shanghai",
+  enabled: false,
+  maxConcurrency: "1",
+  failurePolicy: "stop",
+};
+
+const EMPTY_NODE_FORM: NodeForm = {
+  nodeName: "",
+  timeoutSeconds: "600",
+  retryCount: "0",
+  retryIntervalSec: "5",
+  argumentsJson: "{}",
+  envRefsJson: "{}",
+};
+
+const CANVAS_WIDTH = 1400;
+const CANVAS_HEIGHT = 860;
+const NODE_WIDTH = 218;
+const NODE_HEIGHT = 104;
+const ARTIFACT_MIME = "application/x-model-platform-version";
+
+
+function formatTime(value: string | null): string {
+  if (!value) return "尚未执行";
+  return new Intl.DateTimeFormat("zh-CN", {
+    month: "2-digit",
+    day: "2-digit",
+    hour: "2-digit",
+    minute: "2-digit",
+    hour12: false,
+  }).format(new Date(value));
+}
+
+function shortHash(value: string): string {
+  return value ? `${value.slice(0, 7)}…${value.slice(-5)}` : "—";
+}
+
+const RUN_STATUS_LABELS: Record<ScheduleRunSummary["run_status"], string> = {
+  queued: "排队中",
+  running: "运行中",
+  succeeded: "成功",
+  failed: "失败",
+  cancelled: "已取消",
+  timed_out: "已超时",
+};
+
+function formatDuration(value: number | null): string {
+  if (value === null) return "—";
+  if (value < 1000) return `${value} ms`;
+  if (value < 60_000) return `${(value / 1000).toFixed(1)} s`;
+  return `${Math.floor(value / 60_000)}m ${Math.round((value % 60_000) / 1000)}s`;
+}
+
+function parseObject(text: string, label: string): Record<string, unknown> {
+  let value: unknown;
+  try {
+    value = JSON.parse(text);
+  } catch {
+    throw new Error(`${label}必须是合法 JSON`);
+  }
+  if (!value || Array.isArray(value) || typeof value !== "object") {
+    throw new Error(`${label}必须是 JSON 对象`);
+  }
+  return value as Record<string, unknown>;
+}
+
+function scheduleToForm(schedule: Schedule): ScheduleForm {
+  return {
+    scheduleName: schedule.schedule_name,
+    description: schedule.description ?? "",
+    triggerType: schedule.trigger_type,
+    cronExpression: schedule.cron_expression ?? "0 9 * * *",
+    timezone: schedule.timezone,
+    enabled: schedule.enabled,
+    maxConcurrency: String(schedule.max_concurrency),
+    failurePolicy: schedule.failure_policy,
+  };
+}
+
+function nodeToForm(node: ScheduleNode): NodeForm {
+  return {
+    nodeName: node.node_name,
+    timeoutSeconds: String(node.timeout_seconds),
+    retryCount: String(node.retry_count),
+    retryIntervalSec: String(node.retry_interval_sec),
+    argumentsJson: JSON.stringify(node.arguments_json ?? {}, null, 2),
+    envRefsJson: JSON.stringify(node.env_refs_json ?? {}, null, 2),
+  };
+}
+
+function artifactNodeKey(
+  artifact: ScheduleArtifact,
+  schedule: Schedule,
+): string {
+  const ascii = artifact.script_name
+    .replace(/\.[^.]+$/, "")
+    .replace(/[^A-Za-z0-9_-]+/g, "_")
+    .replace(/^([^A-Za-z])/, "n_$1")
+    .replace(/^_+|_+$/g, "")
+    .slice(0, 48);
+  const base = ascii || `node_${artifact.versions_id.slice(-6).toLowerCase()}`;
+  const existing = new Set(schedule.nodes.map((item) => item.node_key));
+  if (!existing.has(base)) return base;
+  let index = 2;
+  while (existing.has(`${base}_${index}`)) index += 1;
+  return `${base}_${index}`.slice(0, 64);
+}
+
+function edgePath(
+  source: ScheduleNode,
+  target: ScheduleNode,
+): string {
+  const x1 = source.position_x + NODE_WIDTH;
+  const y1 = source.position_y + NODE_HEIGHT / 2;
+  const x2 = target.position_x;
+  const y2 = target.position_y + NODE_HEIGHT / 2;
+  const curve = Math.max(70, Math.abs(x2 - x1) * 0.45);
+  return `M ${x1} ${y1} C ${x1 + curve} ${y1}, ${x2 - curve} ${y2}, ${x2} ${y2}`;
+}
+
+
+export default function SchedulePage({
+  onNotify,
+  onConnectionChange,
+}: {
+  onNotify: (notice: Notice) => void;
+  onConnectionChange: (online: boolean) => void;
+}) {
+  const [schedules, setSchedules] = useState<Schedule[]>([]);
+  const [artifacts, setArtifacts] = useState<ScheduleArtifact[]>([]);
+  const [schedule, setSchedule] = useState<Schedule | null>(null);
+  const scheduleRef = useRef<Schedule | null>(null);
+  const [selectedNodeId, setSelectedNodeId] = useState<string | null>(null);
+  const [selectedEdgeId, setSelectedEdgeId] = useState<string | null>(null);
+  const [linkSourceId, setLinkSourceId] = useState<string | null>(null);
+  const [scheduleKeyword, setScheduleKeyword] = useState("");
+  const [artifactKeyword, setArtifactKeyword] = useState("");
+  const [loading, setLoading] = useState(true);
+  const [busy, setBusy] = useState<string | null>(null);
+  const [createDialogOpen, setCreateDialogOpen] = useState(false);
+  const [newScheduleName, setNewScheduleName] = useState("");
+  const [contextMenu, setContextMenu] =
+    useState<ScheduleContextMenu | null>(null);
+  const [scheduleForm, setScheduleForm] =
+    useState<ScheduleForm>(EMPTY_SCHEDULE_FORM);
+  const [nodeForm, setNodeForm] = useState<NodeForm>(EMPTY_NODE_FORM);
+  const [cronResult, setCronResult] = useState<CronPreview | null>(null);
+  const [runs, setRuns] = useState<ScheduleRunSummary[]>([]);
+  const [runsLoading, setRunsLoading] = useState(false);
+  const canvasRef = useRef<HTMLDivElement | null>(null);
+  const dragRef = useRef<DragState | null>(null);
+  const positionDraftsRef = useRef<Record<string, NodePositionDraft>>({});
+  const [positionDraftCount, setPositionDraftCount] = useState(0);
+
+  const selectedNode = schedule?.nodes.find(
+    (item) => item.node_id === selectedNodeId,
+  ) ?? null;
+  const selectedEdge = schedule?.edges.find(
+    (item) => item.edge_id === selectedEdgeId,
+  ) ?? null;
+
+  useEffect(() => {
+    scheduleRef.current = schedule;
+  }, [schedule]);
+
+  useEffect(() => {
+    if (schedule) setScheduleForm(scheduleToForm(schedule));
+  }, [schedule?.schedule_id, schedule?.workflow_version]);
+
+  useEffect(() => {
+    setNodeForm(selectedNode ? nodeToForm(selectedNode) : EMPTY_NODE_FORM);
+  }, [selectedNode?.node_id, selectedNode?.updated_at]);
+
+  useEffect(() => {
+    if (!contextMenu) return undefined;
+    const close = (): void => setContextMenu(null);
+    const onKeyDown = (event: KeyboardEvent): void => {
+      if (event.key === "Escape") close();
+    };
+    window.addEventListener("pointerdown", close);
+    window.addEventListener("blur", close);
+    window.addEventListener("resize", close);
+    window.addEventListener("scroll", close, true);
+    window.addEventListener("keydown", onKeyDown);
+    return () => {
+      window.removeEventListener("pointerdown", close);
+      window.removeEventListener("blur", close);
+      window.removeEventListener("resize", close);
+      window.removeEventListener("scroll", close, true);
+      window.removeEventListener("keydown", onKeyDown);
+    };
+  }, [contextMenu]);
+
+  const clearPositionDrafts = (): void => {
+    positionDraftsRef.current = {};
+    setPositionDraftCount(0);
+  };
+
+  const openContextMenu = (
+    event: ReactMouseEvent<HTMLElement | SVGElement>,
+    target: ScheduleContextMenuTarget,
+  ): void => {
+    event.preventDefault();
+    event.stopPropagation();
+    const menuWidth = 176;
+    const menuHeight = target.kind === "schedule" ? 132 : 48;
+    setContextMenu({
+      ...target,
+      x: Math.min(event.clientX, window.innerWidth - menuWidth - 8),
+      y: Math.min(event.clientY, window.innerHeight - menuHeight - 8),
+    } as ScheduleContextMenu);
+  };
+
+  const applyPositionDrafts = (serverSchedule: Schedule): Schedule => {
+    const drafts = positionDraftsRef.current;
+    if (Object.keys(drafts).length === 0) return serverSchedule;
+    return {
+      ...serverSchedule,
+      nodes: serverSchedule.nodes.map((node) => {
+        const draft = drafts[node.node_id];
+        return draft ? { ...node, ...draft } : node;
+      }),
+    };
+  };
+
+  const refreshRuns = async (
+    scheduleId: string,
+    showLoading = false,
+  ): Promise<void> => {
+    if (showLoading) setRunsLoading(true);
+    try {
+      const items = await listScheduleRuns({
+        scheduleId,
+        limit: 20,
+      });
+      if (scheduleRef.current?.schedule_id === scheduleId) {
+        setRuns(items);
+      }
+      onConnectionChange(true);
+    } catch (error) {
+      if (showLoading) {
+        await handleError(error, "运行记录加载失败");
+      }
+    } finally {
+      if (showLoading) setRunsLoading(false);
+    }
+  };
+
+  const refreshLists = async (
+    preferredScheduleId?: string | null,
+  ): Promise<void> => {
+    const [scheduleItems, artifactItems] = await Promise.all([
+      listSchedules(),
+      listScheduleArtifacts(),
+    ]);
+    setSchedules(scheduleItems);
+    setArtifacts(artifactItems);
+    const targetId = preferredScheduleId
+      ?? scheduleRef.current?.schedule_id
+      ?? scheduleItems[0]?.schedule_id
+      ?? null;
+    if (!targetId) {
+      setSchedule(null);
+      return;
+    }
+    const detail = await getSchedule(targetId);
+    setSchedule(applyPositionDrafts(detail));
+  };
+
+  useEffect(() => {
+    let cancelled = false;
+    setLoading(true);
+    Promise.all([listSchedules(), listScheduleArtifacts()])
+      .then(async ([scheduleItems, artifactItems]) => {
+        if (cancelled) return;
+        setSchedules(scheduleItems);
+        setArtifacts(artifactItems);
+        if (scheduleItems[0]) {
+          const detail = await getSchedule(scheduleItems[0].schedule_id);
+          if (!cancelled) setSchedule(applyPositionDrafts(detail));
+        }
+        onConnectionChange(true);
+      })
+      .catch((error: unknown) => {
+        if (cancelled) return;
+        onConnectionChange(false);
+        onNotify({
+          tone: "error",
+          message: error instanceof Error ? error.message : "调度数据加载失败",
+        });
+      })
+      .finally(() => {
+        if (!cancelled) setLoading(false);
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+
+  useEffect(() => {
+    const scheduleId = schedule?.schedule_id;
+    if (!scheduleId) {
+      setRuns([]);
+      return;
+    }
+    let cancelled = false;
+    setRunsLoading(true);
+    listScheduleRuns({ scheduleId, limit: 20 })
+      .then((items) => {
+        if (!cancelled) setRuns(items);
+      })
+      .catch((error: unknown) => {
+        if (!cancelled) {
+          onNotify({
+            tone: "error",
+            message: error instanceof Error ? error.message : "运行记录加载失败",
+          });
+        }
+      })
+      .finally(() => {
+        if (!cancelled) setRunsLoading(false);
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [schedule?.schedule_id]);
+
+  const hasActiveRuns = runs.some(
+    (item) => item.run_status === "queued" || item.run_status === "running",
+  );
+
+  useEffect(() => {
+    const scheduleId = schedule?.schedule_id;
+    if (!scheduleId || !hasActiveRuns) return;
+    const timer = window.setInterval(() => {
+      void refreshRuns(scheduleId);
+    }, 1500);
+    return () => window.clearInterval(timer);
+  }, [schedule?.schedule_id, hasActiveRuns]);
+
+  const handleError = async (
+    error: unknown,
+    fallback: string,
+  ): Promise<void> => {
+    if (error instanceof ApiRequestError && error.status === 412) {
+      const currentId = scheduleRef.current?.schedule_id;
+      if (currentId) {
+        withSuppressedError(() => refreshLists(currentId));
+      }
+      onNotify({
+        tone: "error",
+        message: "调度已被其他操作更新，已重新加载最新版本",
+      });
+      return;
+    }
+    onNotify({
+      tone: "error",
+      message: error instanceof Error ? error.message : fallback,
+    });
+  };
+
+  const withMutation = async (
+    label: string,
+    action: () => Promise<Schedule>,
+    successMessage: string,
+  ): Promise<Schedule | null> => {
+    if (busy) return null;
+    setBusy(label);
+    try {
+      const serverUpdated = await action();
+      const validNodeIds = new Set(
+        serverUpdated.nodes.map((node) => node.node_id),
+      );
+      positionDraftsRef.current = Object.fromEntries(
+        Object.entries(positionDraftsRef.current).filter(([nodeId]) => (
+          validNodeIds.has(nodeId)
+        )),
+      );
+      setPositionDraftCount(Object.keys(positionDraftsRef.current).length);
+      const updated = applyPositionDrafts(serverUpdated);
+      setSchedule(updated);
+      setSchedules((current) => {
+        const summary = { ...updated, nodes: [], edges: [] };
+        const index = current.findIndex(
+          (item) => item.schedule_id === updated.schedule_id,
+        );
+        if (index < 0) return [summary, ...current];
+        return current.map((item) => (
+          item.schedule_id === updated.schedule_id ? summary : item
+        ));
+      });
+      onNotify({ tone: "success", message: successMessage });
+      return updated;
+    } catch (error) {
+      await handleError(error, `${successMessage}失败`);
+      return null;
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const chooseSchedule = async (scheduleId: string): Promise<void> => {
+    if (scheduleId === schedule?.schedule_id || busy) return;
+    setBusy("load-schedule");
+    clearPositionDrafts();
+    setSelectedNodeId(null);
+    setSelectedEdgeId(null);
+    setLinkSourceId(null);
+    setCronResult(null);
+    try {
+      setSchedule(await getSchedule(scheduleId));
+      onConnectionChange(true);
+    } catch (error) {
+      await handleError(error, "调度详情加载失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const openCreateScheduleDialog = (): void => {
+    if (busy) return;
+    setContextMenu(null);
+    setNewScheduleName(`新建调度 ${schedules.length + 1}`);
+    setCreateDialogOpen(true);
+  };
+
+  const addSchedule = async (event: FormEvent<HTMLFormElement>): Promise<void> => {
+    event.preventDefault();
+    const scheduleName = newScheduleName.trim();
+    if (busy || !scheduleName) return;
+    setBusy("create-schedule");
+    try {
+      const created = await createSchedule({
+        schedule_name: scheduleName,
+        description: "在画布中拖入稳定版本并配置执行顺序",
+        trigger_type: "manual",
+        timezone: "Asia/Shanghai",
+        enabled: false,
+      });
+      setSchedules((current) => [created, ...current]);
+      setSchedule(created);
+      clearPositionDrafts();
+      setSelectedNodeId(null);
+      setCreateDialogOpen(false);
+      setNewScheduleName("");
+      onNotify({ tone: "success", message: "调度方案已创建" });
+    } catch (error) {
+      await handleError(error, "创建调度失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const removeSchedule = async (target?: Schedule): Promise<void> => {
+    const selectedSchedule = target ?? schedule;
+    if (!selectedSchedule || busy) return;
+    setContextMenu(null);
+    if (!window.confirm(`确定删除调度“${selectedSchedule.schedule_name}”吗？`)) return;
+    setBusy("delete-schedule");
+    try {
+      await deleteSchedule(
+        selectedSchedule.schedule_id,
+        selectedSchedule.workflow_version,
+      );
+      const remaining = schedules.filter(
+        (item) => item.schedule_id !== selectedSchedule.schedule_id,
+      );
+      setSchedules(remaining);
+      if (schedule?.schedule_id === selectedSchedule.schedule_id) {
+        setSchedule(null);
+        clearPositionDrafts();
+        setSelectedNodeId(null);
+        setSelectedEdgeId(null);
+        if (remaining[0]) {
+          setSchedule(await getSchedule(remaining[0].schedule_id));
+        }
+      }
+      onNotify({ tone: "success", message: "调度方案已删除" });
+    } catch (error) {
+      await handleError(error, "删除调度失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const renameSchedule = async (target: Schedule): Promise<void> => {
+    if (busy) return;
+    setContextMenu(null);
+    const scheduleName = window.prompt("请输入新的调度方案名称", target.schedule_name)?.trim();
+    if (!scheduleName || scheduleName === target.schedule_name) return;
+    setBusy("rename-schedule");
+    try {
+      const updated = await updateSchedule(target.schedule_id, {
+        workflow_version: target.workflow_version,
+        schedule_name: scheduleName,
+      });
+      setSchedules((current) => current.map((item) => (
+        item.schedule_id === updated.schedule_id
+          ? { ...updated, nodes: [], edges: [] }
+          : item
+      )));
+      if (schedule?.schedule_id === updated.schedule_id) setSchedule(updated);
+      onNotify({ tone: "success", message: "调度方案已改名" });
+    } catch (error) {
+      await handleError(error, "调度方案改名失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const removeArtifact = async (
+    artifact: ScheduleArtifact,
+  ): Promise<void> => {
+    if (busy) return;
+    setContextMenu(null);
+    if (
+      !window.confirm(
+        `确定将“${artifact.script_name} ${artifact.version_label}”移出调度列表吗？\n`
+        + "稳定版本本身和历史运行记录不会被删除。",
+      )
+    ) return;
+    setBusy("delete-artifact");
+    try {
+      await hideScheduleArtifact(artifact.versions_id);
+      setArtifacts((current) => current.filter(
+        (item) => item.versions_id !== artifact.versions_id,
+      ));
+      onNotify({
+        tone: "success",
+        message: "已移出调度列表，稳定版本和历史记录保持不变",
+      });
+    } catch (error) {
+      await handleError(error, "移出调度列表失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const saveSchedule = async (): Promise<void> => {
+    if (!schedule || busy) return;
+    const maxConcurrency = Number(scheduleForm.maxConcurrency);
+    if (!scheduleForm.scheduleName.trim()) {
+      onNotify({ tone: "error", message: "调度名称不能为空" });
+      return;
+    }
+    if (!Number.isInteger(maxConcurrency) || maxConcurrency < 1) {
+      onNotify({ tone: "error", message: "最大并发数必须是正整数" });
+      return;
+    }
+    setBusy("save-schedule");
+    let updated = scheduleRef.current ?? schedule;
+    try {
+      for (const [nodeId, position] of Object.entries(
+        positionDraftsRef.current,
+      )) {
+        updated = await updateScheduleNode(updated.schedule_id, nodeId, {
+          workflow_version: updated.workflow_version,
+          position_x: position.position_x,
+          position_y: position.position_y,
+        });
+      }
+      updated = await updateSchedule(updated.schedule_id, {
+        workflow_version: updated.workflow_version,
+        schedule_name: scheduleForm.scheduleName.trim(),
+        description: scheduleForm.description.trim() || null,
+        trigger_type: scheduleForm.triggerType,
+        cron_expression: scheduleForm.triggerType === "cron"
+          ? scheduleForm.cronExpression.trim()
+          : null,
+        timezone: scheduleForm.timezone.trim(),
+        enabled: scheduleForm.enabled,
+        max_concurrency: maxConcurrency,
+        failure_policy: scheduleForm.failurePolicy,
+      });
+      clearPositionDrafts();
+      setSchedule(updated);
+      setSchedules((current) => current.map((item) => (
+        item.schedule_id === updated.schedule_id
+          ? { ...updated, nodes: [], edges: [] }
+          : item
+      )));
+      onNotify({ tone: "success", message: "调度配置已保存" });
+    } catch (error) {
+      const localDraft = applyPositionDrafts(updated);
+      scheduleRef.current = localDraft;
+      setSchedule(localDraft);
+      await handleError(error, "调度配置保存失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const runCronPreview = async (): Promise<void> => {
+    if (scheduleForm.triggerType !== "cron") return;
+    if (busy) return;
+    setBusy("cron-preview");
+    try {
+      const result = await previewCron({
+        cron_expression: scheduleForm.cronExpression.trim(),
+        timezone: scheduleForm.timezone.trim(),
+        count: 5,
+      });
+      setCronResult(result);
+      onNotify({ tone: "success", message: "Cron 表达式校验通过" });
+    } catch (error) {
+      setCronResult(null);
+      await handleError(error, "Cron 预览失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const runNow = async (): Promise<void> => {
+    if (!schedule || busy) return;
+    if (positionDraftCount > 0) {
+      onNotify({
+        tone: "info",
+        message: "还有节点位置未保存，请先点击“保存配置”再运行",
+      });
+      return;
+    }
+    if (!schedule.dag_validation.valid || schedule.nodes.length === 0) {
+      onNotify({
+        tone: "error",
+        message: "当前调度必须包含有效的非空 DAG 才能运行",
+      });
+      return;
+    }
+    setBusy("run-now");
+    try {
+      const created = await runScheduleNow(schedule.schedule_id);
+      setRuns((current) => [
+        created,
+        ...current.filter((item) => item.run_id !== created.run_id),
+      ].slice(0, 20));
+      setSchedule((current) => (
+        current ? { ...current, last_run_at: created.queued_at } : current
+      ));
+      setSchedules((current) => current.map((item) => (
+        item.schedule_id === schedule.schedule_id
+          ? { ...item, last_run_at: created.queued_at }
+          : item
+      )));
+      onNotify({
+        tone: "success",
+        message: `运行 ${created.run_id.slice(-8)} 已进入队列`,
+      });
+    } catch (error) {
+      await handleError(error, "立即运行失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const addArtifactAt = async (
+    artifact: ScheduleArtifact,
+    positionX: number,
+    positionY: number,
+  ): Promise<void> => {
+    if (!schedule) {
+      onNotify({ tone: "info", message: "请先新建或选择一个调度方案" });
+      return;
+    }
+    const nodeKey = artifactNodeKey(artifact, schedule);
+    const updated = await withMutation(
+      "add-node",
+      () => createScheduleNode(schedule.schedule_id, {
+        workflow_version: schedule.workflow_version,
+        node_key: nodeKey,
+        node_name: artifact.script_name,
+        versions_id: artifact.versions_id,
+        timeout_seconds: 600,
+        retry_count: 0,
+        retry_interval_sec: 5,
+        position_x: Math.max(20, Math.round(positionX)),
+        position_y: Math.max(20, Math.round(positionY)),
+        arguments_json: {},
+        env_refs_json: {},
+      }),
+      `${artifact.script_name} 已加入画布`,
+    );
+    if (updated) {
+      const created = updated.nodes.find((item) => item.node_key === nodeKey);
+      setSelectedNodeId(created?.node_id ?? null);
+    }
+  };
+
+  const onArtifactDragStart = (
+    event: DragEvent<HTMLDivElement>,
+    artifact: ScheduleArtifact,
+  ): void => {
+    event.dataTransfer.effectAllowed = "copy";
+    event.dataTransfer.setData(ARTIFACT_MIME, artifact.versions_id);
+    event.dataTransfer.setData("text/plain", artifact.versions_id);
+  };
+
+  const onCanvasDrop = (event: DragEvent<HTMLDivElement>): void => {
+    event.preventDefault();
+    const versionsId = event.dataTransfer.getData(ARTIFACT_MIME)
+      || event.dataTransfer.getData("text/plain");
+    const artifact = artifacts.find((item) => item.versions_id === versionsId);
+    if (!artifact || !canvasRef.current) return;
+    const rect = canvasRef.current.getBoundingClientRect();
+    const positionX = event.clientX - rect.left
+      + canvasRef.current.scrollLeft - NODE_WIDTH / 2;
+    const positionY = event.clientY - rect.top
+      + canvasRef.current.scrollTop - NODE_HEIGHT / 2;
+    void addArtifactAt(artifact, positionX, positionY);
+  };
+
+  const startNodeDrag = (
+    event: ReactPointerEvent<HTMLDivElement>,
+    node: ScheduleNode,
+  ): void => {
+    if (event.button !== 0 || busy || linkSourceId) return;
+    const target = event.target as HTMLElement;
+    if (target.closest("button")) return;
+    event.currentTarget.setPointerCapture(event.pointerId);
+    dragRef.current = {
+      nodeId: node.node_id,
+      pointerId: event.pointerId,
+      startClientX: event.clientX,
+      startClientY: event.clientY,
+      originX: node.position_x,
+      originY: node.position_y,
+      moved: false,
+    };
+    setSelectedNodeId(node.node_id);
+    setSelectedEdgeId(null);
+  };
+
+  const moveNode = (
+    event: ReactPointerEvent<HTMLDivElement>,
+  ): void => {
+    const drag = dragRef.current;
+    if (!drag || drag.pointerId !== event.pointerId) return;
+    const deltaX = event.clientX - drag.startClientX;
+    const deltaY = event.clientY - drag.startClientY;
+    if (Math.abs(deltaX) + Math.abs(deltaY) > 3) drag.moved = true;
+    setSchedule((current) => {
+      if (!current) return current;
+      const next = {
+        ...current,
+        nodes: current.nodes.map((item) => (
+          item.node_id === drag.nodeId
+            ? {
+                ...item,
+                position_x: Math.max(10, drag.originX + deltaX),
+                position_y: Math.max(10, drag.originY + deltaY),
+              }
+            : item
+        )),
+      };
+      scheduleRef.current = next;
+      return next;
+    });
+  };
+
+  const finishNodeDrag = (
+    event: ReactPointerEvent<HTMLDivElement>,
+  ): void => {
+    const drag = dragRef.current;
+    if (!drag || drag.pointerId !== event.pointerId) return;
+    dragRef.current = null;
+    if (!drag.moved) return;
+    const current = scheduleRef.current;
+    const node = current?.nodes.find((item) => item.node_id === drag.nodeId);
+    if (!current || !node) return;
+    const position = {
+      position_x: Math.round(node.position_x),
+      position_y: Math.round(node.position_y),
+    };
+    positionDraftsRef.current = {
+      ...positionDraftsRef.current,
+      [node.node_id]: position,
+    };
+    setPositionDraftCount(Object.keys(positionDraftsRef.current).length);
+    setSchedule((value) => {
+      if (!value) return value;
+      const next = {
+        ...value,
+        nodes: value.nodes.map((item) => (
+          item.node_id === node.node_id ? { ...item, ...position } : item
+        )),
+      };
+      scheduleRef.current = next;
+      return next;
+    });
+  };
+
+  const connectTo = async (targetNodeId: string): Promise<void> => {
+    if (!schedule || !linkSourceId || busy) return;
+    if (linkSourceId === targetNodeId) {
+      setLinkSourceId(null);
+      onNotify({ tone: "info", message: "已取消连线" });
+      return;
+    }
+    const sourceId = linkSourceId;
+    setLinkSourceId(null);
+    await withMutation(
+      "create-edge",
+      () => createScheduleEdge(schedule.schedule_id, {
+        workflow_version: schedule.workflow_version,
+        source_node_id: sourceId,
+        target_node_id: targetNodeId,
+      }),
+      "节点连线已创建",
+    );
+  };
+
+  const saveNode = async (): Promise<void> => {
+    if (!schedule || !selectedNode) return;
+    try {
+      const timeoutSeconds = Number(nodeForm.timeoutSeconds);
+      const retryCount = Number(nodeForm.retryCount);
+      const retryIntervalSec = Number(nodeForm.retryIntervalSec);
+      if (!nodeForm.nodeName.trim()) throw new Error("节点名称不能为空");
+      if (!Number.isInteger(timeoutSeconds) || timeoutSeconds < 1) {
+        throw new Error("超时时间必须是正整数");
+      }
+      if (!Number.isInteger(retryCount) || retryCount < 0) {
+        throw new Error("重试次数必须是非负整数");
+      }
+      if (!Number.isInteger(retryIntervalSec) || retryIntervalSec < 0) {
+        throw new Error("重试间隔必须是非负整数");
+      }
+      const argumentsJson = parseObject(nodeForm.argumentsJson, "运行参数");
+      const rawEnv = parseObject(nodeForm.envRefsJson, "环境引用");
+      const envRefsJson = Object.fromEntries(
+        Object.entries(rawEnv).map(([key, value]) => {
+          if (typeof value !== "string") {
+            throw new Error("环境引用的值必须是字符串");
+          }
+          return [key, value];
+        }),
+      );
+      await withMutation(
+        "save-node",
+        () => updateScheduleNode(schedule.schedule_id, selectedNode.node_id, {
+          workflow_version: schedule.workflow_version,
+          node_name: nodeForm.nodeName.trim(),
+          timeout_seconds: timeoutSeconds,
+          retry_count: retryCount,
+          retry_interval_sec: retryIntervalSec,
+          arguments_json: argumentsJson,
+          env_refs_json: envRefsJson,
+        }),
+        "节点配置已保存",
+      );
+    } catch (error) {
+      await handleError(error, "节点配置保存失败");
+    }
+  };
+
+  const removeNode = async (target?: ScheduleNode): Promise<void> => {
+    const node = target ?? selectedNode;
+    if (!schedule || !node || busy) return;
+    setContextMenu(null);
+    if (!window.confirm(`确定删除节点“${node.node_name}”吗？`)) return;
+    const updated = await withMutation(
+      "delete-node",
+      () => deleteScheduleNode(
+        schedule.schedule_id,
+        node.node_id,
+        schedule.workflow_version,
+      ),
+      "节点已删除",
+    );
+    if (updated && selectedNodeId === node.node_id) setSelectedNodeId(null);
+  };
+
+  const removeEdge = async (target?: ScheduleEdge): Promise<void> => {
+    const edge = target ?? selectedEdge;
+    if (!schedule || !edge || busy) return;
+    setContextMenu(null);
+    const updated = await withMutation(
+      "delete-edge",
+      () => deleteScheduleEdge(
+        schedule.schedule_id,
+        edge.edge_id,
+        schedule.workflow_version,
+      ),
+      "连线已删除",
+    );
+    if (updated && selectedEdgeId === edge.edge_id) setSelectedEdgeId(null);
+  };
+
+  const checkDag = async (): Promise<void> => {
+    if (!schedule || busy) return;
+    setBusy("validate");
+    try {
+      const result = await validateSchedule(schedule.schedule_id);
+      setSchedule((current) => current
+        ? { ...current, dag_validation: result }
+        : current);
+      onNotify({
+        tone: result.valid ? "success" : "error",
+        message: result.valid
+          ? `DAG 校验通过，共 ${result.node_count} 个节点`
+          : result.errors.map((item) => item.message).join("；"),
+      });
+    } catch (error) {
+      await handleError(error, "DAG 校验失败");
+    } finally {
+      setBusy(null);
+    }
+  };
+
+  const filteredSchedules = useMemo(() => {
+    const keyword = scheduleKeyword.trim().toLowerCase();
+    return keyword
+      ? schedules.filter((item) => item.schedule_name.toLowerCase().includes(keyword))
+      : schedules;
+  }, [schedules, scheduleKeyword]);
+
+  const filteredArtifacts = useMemo(() => {
+    const keyword = artifactKeyword.trim().toLowerCase();
+    return keyword
+      ? artifacts.filter((item) => (
+          item.script_name.toLowerCase().includes(keyword)
+          || item.version_label.toLowerCase().includes(keyword)
+        ))
+      : artifacts;
+  }, [artifacts, artifactKeyword]);
+
+  return (
+    <section className="schedule-page">
+      <header className="schedule-toolbar">
+        <div>
+          <strong>图形化调度</strong>
+          <span>
+            {schedule
+              ? `版本 ${schedule.workflow_version} · ${schedule.dag_validation.valid ? "DAG 有效" : "待校验"}${
+                  positionDraftCount > 0
+                    ? ` · ${positionDraftCount} 个节点位置待保存`
+                    : ""
+                }`
+              : "创建调度后开始编排"}
+          </span>
+        </div>
+        <div className="schedule-toolbar__actions">
+          <button type="button" onClick={openCreateScheduleDialog}>
+            <Icon name="plus" size={15} />新建
+          </button>
+          <button
+            className="schedule-action--primary"
+            type="button"
+            disabled={!schedule || Boolean(busy)}
+            onClick={() => void saveSchedule()}
+          >
+            <Icon name="check" size={15} />保存配置
+          </button>
+          <button
+            type="button"
+            disabled={!schedule || Boolean(busy)}
+            onClick={() => void checkDag()}
+          >
+            校验 DAG
+          </button>
+          <button
+            className="schedule-action--run"
+            type="button"
+            disabled={
+              !schedule
+              || Boolean(busy)
+              || !schedule.dag_validation.valid
+              || schedule.nodes.length === 0
+            }
+            title={
+              positionDraftCount > 0
+                ? "请先保存节点位置"
+                : "立即执行当前已保存的稳定版本 DAG"
+            }
+            onClick={() => void runNow()}
+          >
+            <Icon name="play" size={14} />立即运行
+          </button>
+          <button
+            className="schedule-action--danger"
+            type="button"
+            disabled={!schedule || Boolean(busy)}
+            onClick={() => void removeSchedule(schedule ?? undefined)}
+          >
+            删除
+          </button>
+        </div>
+      </header>
+
+      <div className="schedule-workbench">
+        <aside className="schedule-left">
+          <section className="schedule-panel schedule-list-panel">
+            <div
+              className="schedule-panel__title"
+              onContextMenu={(event) => openContextMenu(event, { kind: "schedule-list" })}
+            >
+              <div><strong>调度方案</strong><span>{schedules.length}</span></div>
+            </div>
+            <label className="schedule-search">
+              <Icon name="search" size={15} />
+              <input
+                value={scheduleKeyword}
+                placeholder="搜索调度名称"
+                onChange={(event) => setScheduleKeyword(event.target.value)}
+              />
+            </label>
+            <div
+              className="schedule-list"
+              onContextMenu={(event) => openContextMenu(event, { kind: "schedule-list" })}
+            >
+              {loading ? (
+                <p className="schedule-empty">正在加载调度方案…</p>
+              ) : filteredSchedules.length ? (
+                filteredSchedules.map((item) => (
+                  <button
+                    className={`schedule-card${
+                      schedule?.schedule_id === item.schedule_id
+                        ? " schedule-card--active"
+                        : ""
+                    }`}
+                    key={item.schedule_id}
+                    type="button"
+                    onClick={() => void chooseSchedule(item.schedule_id)}
+                    onContextMenu={(event) => openContextMenu(event, {
+                      kind: "schedule",
+                      schedule: item,
+                    })}
+                  >
+                    <span className={`schedule-status${item.enabled ? " is-enabled" : ""}`} />
+                    <span>
+                      <strong>{item.schedule_name}</strong>
+                      <small>
+                        {item.node_count} 个节点 · {item.enabled ? "已启用" : "未启用"}
+                      </small>
+                    </span>
+                  </button>
+                ))
+              ) : (
+                <p className="schedule-empty">暂无调度方案</p>
+              )}
+            </div>
+          </section>
+
+          <section className="schedule-panel schedule-artifacts-panel">
+            <div className="schedule-panel__title">
+              <div><strong>稳定版本脚本</strong><span>{artifacts.length}</span></div>
+            </div>
+            <label className="schedule-search">
+              <Icon name="search" size={15} />
+              <input
+                value={artifactKeyword}
+                placeholder="搜索稳定版本"
+                onChange={(event) => setArtifactKeyword(event.target.value)}
+              />
+            </label>
+            <p className="artifact-tip">拖动卡片到画布，节点将保存 versions_id</p>
+            <div className="artifact-list">
+              {filteredArtifacts.length ? filteredArtifacts.map((artifact) => (
+                <div
+                  className="artifact-card"
+                  draggable
+                  key={artifact.versions_id}
+                  onDragStart={(event) => onArtifactDragStart(event, artifact)}
+                  onContextMenu={(event) => openContextMenu(event, {
+                    kind: "artifact",
+                    artifact,
+                  })}
+                  onDoubleClick={() => void addArtifactAt(
+                    artifact,
+                    90 + (schedule?.nodes.length ?? 0) * 245,
+                    130,
+                  )}
+                >
+                  <span className={`artifact-card__icon artifact-card__icon--${artifact.script_type}`}>
+                    <Icon
+                      name={artifact.script_type === "notebook" ? "notebook" : "python"}
+                      size={17}
+                    />
+                  </span>
+                  <span>
+                    <strong>{artifact.script_name}</strong>
+                    <small>
+                      {artifact.version_label} · {shortHash(artifact.content_hash)}
+                    </small>
+                  </span>
+                </div>
+              )) : (
+                <p className="schedule-empty">
+                  暂无稳定版本，请先在“构建脚本”中发布
+                </p>
+              )}
+            </div>
+          </section>
+        </aside>
+
+        <main className="schedule-center">
+          <div className="schedule-canvas-title">
+            <div>
+              <strong>流程画布</strong>
+              <span>
+                拖入稳定版本；点击节点右侧圆点，再点击目标左侧圆点完成连线
+              </span>
+            </div>
+            {linkSourceId && (
+              <button type="button" onClick={() => setLinkSourceId(null)}>
+                取消连线
+              </button>
+            )}
+          </div>
+          <div
+            className={`schedule-canvas${linkSourceId ? " is-linking" : ""}`}
+            ref={canvasRef}
+            onDragOver={(event) => {
+              event.preventDefault();
+              event.dataTransfer.dropEffect = "copy";
+            }}
+            onDrop={onCanvasDrop}
+            onClick={(event) => {
+              if (event.target === event.currentTarget) {
+                setSelectedNodeId(null);
+                setSelectedEdgeId(null);
+              }
+            }}
+          >
+            <div
+              className="schedule-canvas__surface"
+              style={{ width: CANVAS_WIDTH, height: CANVAS_HEIGHT }}
+            >
+              {schedule && (
+                <svg
+                  className="schedule-edges"
+                  viewBox={`0 0 ${CANVAS_WIDTH} ${CANVAS_HEIGHT}`}
+                  aria-label="调度连线"
+                >
+                  <defs>
+                    <marker
+                      id="schedule-arrow"
+                      markerWidth="8"
+                      markerHeight="8"
+                      refX="7"
+                      refY="4"
+                      orient="auto"
+                    >
+                      <path d="M0,0 L8,4 L0,8 Z" fill="#4e92db" />
+                    </marker>
+                  </defs>
+                  {schedule.edges.map((edge) => {
+                    const source = schedule.nodes.find(
+                      (node) => node.node_id === edge.source_node_id,
+                    );
+                    const target = schedule.nodes.find(
+                      (node) => node.node_id === edge.target_node_id,
+                    );
+                    if (!source || !target) return null;
+                    const path = edgePath(source, target);
+                    return (
+                      <g
+                        className={selectedEdgeId === edge.edge_id ? "is-selected" : ""}
+                        key={edge.edge_id}
+                        onClick={(event) => {
+                          event.stopPropagation();
+                          setSelectedEdgeId(edge.edge_id);
+                          setSelectedNodeId(null);
+                        }}
+                        onContextMenu={(event) => openContextMenu(event, {
+                          kind: "edge",
+                          edge,
+                        })}
+                      >
+                        <path className="schedule-edge-hit" d={path} />
+                        <path
+                          className="schedule-edge-line"
+                          d={path}
+                          markerEnd="url(#schedule-arrow)"
+                        />
+                      </g>
+                    );
+                  })}
+                </svg>
+              )}
+
+              {schedule?.nodes.map((node) => (
+                <div
+                  className={`schedule-node${
+                    selectedNodeId === node.node_id ? " is-selected" : ""
+                  }`}
+                  key={node.node_id}
+                  style={{
+                    left: node.position_x,
+                    top: node.position_y,
+                    width: NODE_WIDTH,
+                    height: NODE_HEIGHT,
+                  }}
+                  onPointerDown={(event) => startNodeDrag(event, node)}
+                  onPointerMove={moveNode}
+                  onPointerUp={finishNodeDrag}
+                  onPointerCancel={finishNodeDrag}
+                  onContextMenu={(event) => openContextMenu(event, {
+                    kind: "node",
+                    node,
+                  })}
+                >
+                  <button
+                    className="schedule-node__port schedule-node__port--in"
+                    type="button"
+                    aria-label={`连接到${node.node_name}`}
+                    title={linkSourceId ? "点击完成连线" : "输入端口"}
+                    onPointerDown={(event) => event.stopPropagation()}
+                    onClick={(event) => {
+                      event.stopPropagation();
+                      void connectTo(node.node_id);
+                    }}
+                  />
+                  <div className="schedule-node__heading">
+                    <span className={`schedule-node__type schedule-node__type--${node.version.script_type}`}>
+                      <Icon
+                        name={node.version.script_type === "notebook" ? "notebook" : "python"}
+                        size={14}
+                      />
+                    </span>
+                    <strong>{node.node_name}</strong>
+                    <button
+                      type="button"
+                      aria-label="删除节点"
+                      onPointerDown={(event) => event.stopPropagation()}
+                      onClick={(event) => {
+                        event.stopPropagation();
+                        setSelectedNodeId(node.node_id);
+                        setSelectedEdgeId(null);
+                      }}
+                    >
+                      <Icon name="settings" size={14} />
+                    </button>
+                  </div>
+                  <p>{node.version.script_name}</p>
+                  <footer>
+                    <span>{node.node_key}</span>
+                    <b>{node.version.version_label}</b>
+                  </footer>
+                  <button
+                    className={`schedule-node__port schedule-node__port--out${
+                      linkSourceId === node.node_id ? " is-active" : ""
+                    }`}
+                    type="button"
+                    aria-label={`从${node.node_name}开始连线`}
+                    title="输出端口"
+                    onPointerDown={(event) => event.stopPropagation()}
+                    onClick={(event) => {
+                      event.stopPropagation();
+                      setLinkSourceId((current) => (
+                        current === node.node_id ? null : node.node_id
+                      ));
+                      setSelectedNodeId(node.node_id);
+                      setSelectedEdgeId(null);
+                    }}
+                  />
+                </div>
+              ))}
+
+              {!schedule ? (
+                <div className="schedule-canvas-empty">
+                  <Icon name="schedule" size={34} />
+                  <strong>还没有选中调度方案</strong>
+                  <p>点击“新建”创建一个调度，然后拖入稳定版本脚本。</p>
+                  <button type="button" onClick={openCreateScheduleDialog}>
+                    <Icon name="plus" size={15} />新建调度
+                  </button>
+                </div>
+              ) : schedule.nodes.length === 0 ? (
+                <div className="schedule-canvas-empty">
+                  <Icon name="release" size={34} />
+                  <strong>从稳定版本开始编排</strong>
+                  <p>把左侧脚本卡片拖到这里，或双击卡片快速加入。</p>
+                </div>
+              ) : null}
+            </div>
+          </div>
+          <footer className="schedule-canvas-status">
+            <span className={schedule?.dag_validation.valid ? "is-valid" : ""}>
+              {schedule?.dag_validation.valid ? "✓ DAG 有效" : "○ DAG 待校验"}
+            </span>
+            <span>{schedule?.nodes.length ?? 0} 个节点</span>
+            <span>{schedule?.edges.length ?? 0} 条连线</span>
+            {selectedEdge && (
+              <button type="button" onClick={() => void removeEdge(selectedEdge)}>
+                删除选中连线
+              </button>
+            )}
+          </footer>
+        </main>
+
+        <aside className="schedule-right">
+          <div className="schedule-inspector-scroll">
+            {selectedNode ? (
+              <NodeInspector
+                node={selectedNode}
+                form={nodeForm}
+                busy={Boolean(busy)}
+                onChange={setNodeForm}
+                onSave={() => void saveNode()}
+                onDelete={() => void removeNode(selectedNode)}
+              />
+            ) : (
+              <ScheduleInspector
+                schedule={schedule}
+                form={scheduleForm}
+                cronResult={cronResult}
+                busy={Boolean(busy)}
+                onChange={setScheduleForm}
+                onPreview={() => void runCronPreview()}
+                onSave={() => void saveSchedule()}
+              />
+            )}
+          </div>
+          <RunHistory
+            runs={runs}
+            loading={runsLoading}
+            disabled={!schedule || Boolean(busy)}
+            onRefresh={() => {
+              if (schedule) void refreshRuns(schedule.schedule_id, true);
+            }}
+          />
+        </aside>
+      </div>
+
+      {contextMenu && (
+        <div
+          className="schedule-context-menu"
+          role="menu"
+          style={{ left: contextMenu.x, top: contextMenu.y }}
+          onPointerDown={(event) => event.stopPropagation()}
+        >
+          {contextMenu.kind === "schedule-list" && (
+            <button
+              className="schedule-context-menu__action"
+              type="button"
+              role="menuitem"
+              onClick={openCreateScheduleDialog}
+            >
+              <Icon name="plus" size={14} />
+              新建调度方案
+            </button>
+          )}
+          {contextMenu.kind === "schedule" && (
+            <>
+              <button
+                className="schedule-context-menu__action"
+                type="button"
+                role="menuitem"
+                onClick={openCreateScheduleDialog}
+              >
+                <Icon name="plus" size={14} />
+                新建调度方案
+              </button>
+              <button
+                className="schedule-context-menu__action"
+                type="button"
+                role="menuitem"
+                onClick={() => void renameSchedule(contextMenu.schedule)}
+              >
+                <Icon name="settings" size={14} />
+                改名
+              </button>
+              <button
+                type="button"
+                role="menuitem"
+                onClick={() => void removeSchedule(contextMenu.schedule)}
+              >
+                <Icon name="close" size={14} />
+                删除调度方案
+              </button>
+            </>
+          )}
+          {contextMenu.kind === "artifact" && (
+            <button
+              type="button"
+              role="menuitem"
+              onClick={() => void removeArtifact(contextMenu.artifact)}
+            >
+              <Icon name="close" size={14} />
+              移出调度列表
+            </button>
+          )}
+          {contextMenu.kind === "node" && (
+            <button
+              type="button"
+              role="menuitem"
+              onClick={() => void removeNode(contextMenu.node)}
+            >
+              <Icon name="close" size={14} />
+              删除画布节点
+            </button>
+          )}
+          {contextMenu.kind === "edge" && (
+            <button
+              type="button"
+              role="menuitem"
+              onClick={() => void removeEdge(contextMenu.edge)}
+            >
+              <Icon name="close" size={14} />
+              删除画布连线
+            </button>
+          )}
+        </div>
+      )}
+
+      {createDialogOpen && (
+        <div className="modal-backdrop" role="presentation">
+          <section
+            className="modal modal--compact"
+            role="dialog"
+            aria-modal="true"
+            aria-labelledby="create-schedule-title"
+          >
+            <div className="modal__header">
+              <div>
+                <span className="modal__eyebrow">SCHEDULE</span>
+                <h2 id="create-schedule-title">新建调度方案</h2>
+              </div>
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="关闭"
+                disabled={Boolean(busy)}
+                onClick={() => setCreateDialogOpen(false)}
+              >
+                <Icon name="close" />
+              </button>
+            </div>
+            <form onSubmit={(event) => void addSchedule(event)}>
+              <label className="form-field">
+                <span>调度方案名称</span>
+                <input
+                  autoFocus
+                  maxLength={255}
+                  placeholder="请输入调度方案名称"
+                  value={newScheduleName}
+                  onChange={(event) => setNewScheduleName(event.target.value)}
+                  onFocus={(event) => event.currentTarget.select()}
+                />
+              </label>
+              <div className="modal__footer">
+                <button
+                  className="secondary-button"
+                  type="button"
+                  disabled={Boolean(busy)}
+                  onClick={() => setCreateDialogOpen(false)}
+                >
+                  取消
+                </button>
+                <button
+                  className="primary-button"
+                  type="submit"
+                  disabled={Boolean(busy) || !newScheduleName.trim()}
+                >
+                  {busy === "create-schedule"
+                    ? <span className="button-spinner" />
+                    : <Icon name="plus" size={15} />}
+                  {busy === "create-schedule" ? "正在创建…" : "创建调度"}
+                </button>
+              </div>
+            </form>
+          </section>
+        </div>
+      )}
+
+      {busy && (
+        <div className="schedule-busy" aria-live="polite">
+          <span />
+          {busy === "run-now" ? "正在创建运行…" : "正在同步调度配置…"}
+        </div>
+      )}
+    </section>
+  );
+}
+
+
+function RunHistory({
+  runs,
+  loading,
+  disabled,
+  onRefresh,
+}: {
+  runs: ScheduleRunSummary[];
+  loading: boolean;
+  disabled: boolean;
+  onRefresh: () => void;
+}) {
+  return (
+    <section className="schedule-run-history">
+      <header>
+        <div>
+          <strong>运行记录</strong>
+          <span>{runs.length}</span>
+        </div>
+        <button
+          type="button"
+          aria-label="刷新运行记录"
+          disabled={disabled || loading}
+          onClick={onRefresh}
+        >
+          <Icon name="refresh" size={13} />
+        </button>
+      </header>
+      <div className="schedule-run-list">
+        {loading && runs.length === 0 ? (
+          <p>正在加载运行记录…</p>
+        ) : runs.length === 0 ? (
+          <p>点击右上角“立即运行”后，这里会显示状态和耗时。</p>
+        ) : (
+          runs.map((run) => (
+            <article className="schedule-run-card" key={run.run_id}>
+              <span className={`run-status-dot is-${run.run_status}`} />
+              <div>
+                <strong>{RUN_STATUS_LABELS[run.run_status]}</strong>
+                <small>
+                  {formatTime(run.queued_at)} · {formatDuration(run.duration_ms)}
+                </small>
+                {run.error_message && <p>{run.error_message}</p>}
+              </div>
+              <code title={run.run_id}>{run.run_id.slice(-8)}</code>
+            </article>
+          ))
+        )}
+      </div>
+    </section>
+  );
+}
+
+
+function ScheduleInspector({
+  schedule,
+  form,
+  cronResult,
+  busy,
+  onChange,
+  onPreview,
+  onSave,
+}: {
+  schedule: Schedule | null;
+  form: ScheduleForm;
+  cronResult: CronPreview | null;
+  busy: boolean;
+  onChange: (form: ScheduleForm) => void;
+  onPreview: () => void;
+  onSave: () => void;
+}) {
+  if (!schedule) {
+    return (
+      <div className="schedule-inspector-empty">
+        <Icon name="settings" size={28} />
+        <strong>调度属性</strong>
+        <p>选中调度方案后可配置触发方式、Cron 和执行策略。</p>
+      </div>
+    );
+  }
+  return (
+    <div className="schedule-inspector">
+      <section>
+        <h3>基本信息</h3>
+        <label>
+          <span>调度名称</span>
+          <input
+            value={form.scheduleName}
+            onChange={(event) => onChange({
+              ...form,
+              scheduleName: event.target.value,
+            })}
+          />
+        </label>
+        <label>
+          <span>说明</span>
+          <textarea
+            rows={2}
+            value={form.description}
+            onChange={(event) => onChange({
+              ...form,
+              description: event.target.value,
+            })}
+          />
+        </label>
+        <label className="schedule-switch-row">
+          <span>
+            <b>启用调度</b>
+            <small>DAG 有效后才能启用</small>
+          </span>
+          <input
+            type="checkbox"
+            checked={form.enabled}
+            onChange={(event) => onChange({
+              ...form,
+              enabled: event.target.checked,
+            })}
+          />
+        </label>
+      </section>
+
+      <section>
+        <h3>触发器</h3>
+        <label>
+          <span>触发方式</span>
+          <select
+            value={form.triggerType}
+            onChange={(event) => onChange({
+              ...form,
+              triggerType: event.target.value as ScheduleForm["triggerType"],
+              enabled: event.target.value === "cron" ? form.enabled : false,
+            })}
+          >
+            <option value="manual">手动触发</option>
+            <option value="cron">Cron 定时</option>
+            <option value="api">API 触发</option>
+          </select>
+        </label>
+        {form.triggerType === "cron" && (
+          <>
+            <label>
+              <span>Cron（分 时 日 月 周）</span>
+              <input
+                value={form.cronExpression}
+                onChange={(event) => onChange({
+                  ...form,
+                  cronExpression: event.target.value,
+                })}
+              />
+            </label>
+            <label>
+              <span>时区</span>
+              <input
+                value={form.timezone}
+                onChange={(event) => onChange({
+                  ...form,
+                  timezone: event.target.value,
+                })}
+              />
+            </label>
+            <button
+              className="inspector-secondary-button"
+              type="button"
+              disabled={busy}
+              onClick={onPreview}
+            >
+              预览未来 5 次
+            </button>
+            {cronResult && (
+              <ol className="cron-preview-list">
+                {cronResult.occurrences.map((item) => (
+                  <li key={item.utc_time}>
+                    {new Date(item.local_time).toLocaleString("zh-CN", {
+                      hour12: false,
+                    })}
+                  </li>
+                ))}
+              </ol>
+            )}
+          </>
+        )}
+      </section>
+
+      <section>
+        <h3>执行策略</h3>
+        <div className="inspector-grid">
+          <label>
+            <span>最大并发</span>
+            <input
+              type="number"
+              min="1"
+              max="64"
+              value={form.maxConcurrency}
+              onChange={(event) => onChange({
+                ...form,
+                maxConcurrency: event.target.value,
+              })}
+            />
+          </label>
+          <label>
+            <span>失败策略</span>
+            <select
+              value={form.failurePolicy}
+              onChange={(event) => onChange({
+                ...form,
+                failurePolicy: event.target.value as "stop" | "continue",
+              })}
+            >
+              <option value="stop">停止后续</option>
+              <option value="continue">继续执行</option>
+            </select>
+          </label>
+        </div>
+        <div className="schedule-next-run">
+          <span>下一次执行</span>
+          <strong>{formatTime(schedule.next_run_at)}</strong>
+        </div>
+      </section>
+
+      <button
+        className="inspector-primary-button"
+        type="button"
+        disabled={busy}
+        onClick={onSave}
+      >
+        保存调度属性
+      </button>
+    </div>
+  );
+}
+
+
+function NodeInspector({
+  node,
+  form,
+  busy,
+  onChange,
+  onSave,
+  onDelete,
+}: {
+  node: ScheduleNode;
+  form: NodeForm;
+  busy: boolean;
+  onChange: (form: NodeForm) => void;
+  onSave: () => void;
+  onDelete: () => void;
+}) {
+  return (
+    <div className="schedule-inspector">
+      <section className="node-inspector-title">
+        <span className={`artifact-card__icon artifact-card__icon--${node.version.script_type}`}>
+          <Icon
+            name={node.version.script_type === "notebook" ? "notebook" : "python"}
+            size={17}
+          />
+        </span>
+        <div>
+          <small>节点配置</small>
+          <strong>{node.node_key}</strong>
+        </div>
+      </section>
+      <section>
+        <h3>稳定版本</h3>
+        <div className="version-readonly">
+          <strong>{node.version.script_name}</strong>
+          <span>{node.version.version_label}</span>
+          <small>versions_id: {node.versions_id}</small>
+          <small>SHA-256: {shortHash(node.version.content_hash)}</small>
+        </div>
+      </section>
+      <section>
+        <h3>节点信息</h3>
+        <label>
+          <span>节点名称</span>
+          <input
+            value={form.nodeName}
+            onChange={(event) => onChange({
+              ...form,
+              nodeName: event.target.value,
+            })}
+          />
+        </label>
+        <div className="inspector-grid">
+          <label>
+            <span>超时（秒）</span>
+            <input
+              type="number"
+              min="1"
+              value={form.timeoutSeconds}
+              onChange={(event) => onChange({
+                ...form,
+                timeoutSeconds: event.target.value,
+              })}
+            />
+          </label>
+          <label>
+            <span>重试次数</span>
+            <input
+              type="number"
+              min="0"
+              max="10"
+              value={form.retryCount}
+              onChange={(event) => onChange({
+                ...form,
+                retryCount: event.target.value,
+              })}
+            />
+          </label>
+        </div>
+        <label>
+          <span>重试间隔（秒）</span>
+          <input
+            type="number"
+            min="0"
+            value={form.retryIntervalSec}
+            onChange={(event) => onChange({
+              ...form,
+              retryIntervalSec: event.target.value,
+            })}
+          />
+        </label>
+      </section>
+      <section>
+        <h3>运行参数</h3>
+        <label>
+          <span>arguments_json</span>
+          <textarea
+            className="json-editor"
+            rows={5}
+            spellCheck={false}
+            value={form.argumentsJson}
+            onChange={(event) => onChange({
+              ...form,
+              argumentsJson: event.target.value,
+            })}
+          />
+        </label>
+        <label>
+          <span>env_refs_json</span>
+          <textarea
+            className="json-editor"
+            rows={4}
+            spellCheck={false}
+            value={form.envRefsJson}
+            onChange={(event) => onChange({
+              ...form,
+              envRefsJson: event.target.value,
+            })}
+          />
+        </label>
+      </section>
+      <div className="node-inspector-actions">
+        <button
+          className="inspector-primary-button"
+          type="button"
+          disabled={busy}
+          onClick={onSave}
+        >
+          保存节点
+        </button>
+        <button
+          className="inspector-danger-button"
+          type="button"
+          disabled={busy}
+          onClick={onDelete}
+        >
+          删除节点
+        </button>
+      </div>
+    </div>
+  );
+}
+
+
+function withSuppressedError(action: () => Promise<void>): void {
+  void action().catch(() => undefined);
+}
diff --git a/frontend/app/root.tsx b/frontend/app/root.tsx
new file mode 100644
index 0000000..6cce2dc
--- /dev/null
+++ b/frontend/app/root.tsx
@@ -0,0 +1,75 @@
+import {
+  isRouteErrorResponse,
+  Links,
+  Meta,
+  Outlet,
+  Scripts,
+  ScrollRestoration,
+} from "react-router";
+
+import type { Route } from "./+types/root";
+import "./app.css";
+
+export const links: Route.LinksFunction = () => [
+  { rel: "preconnect", href: "https://fonts.googleapis.com" },
+  {
+    rel: "preconnect",
+    href: "https://fonts.gstatic.com",
+    crossOrigin: "anonymous",
+  },
+  {
+    rel: "stylesheet",
+    href: "https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap",
+  },
+];
+
+export function Layout({ children }: { children: React.ReactNode }) {
+  return (
+    <html lang="zh-CN">
+      <head>
+        <meta charSet="utf-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1" />
+        <Meta />
+        <Links />
+      </head>
+      <body>
+        {children}
+        <ScrollRestoration />
+        <Scripts />
+      </body>
+    </html>
+  );
+}
+
+export default function App() {
+  return <Outlet />;
+}
+
+export function ErrorBoundary({ error }: Route.ErrorBoundaryProps) {
+  let message = "页面加载失败";
+  let details = "系统发生了未预期的错误。";
+  let stack: string | undefined;
+
+  if (isRouteErrorResponse(error)) {
+    message = error.status === 404 ? "404" : "请求失败";
+    details =
+      error.status === 404
+        ? "没有找到请求的页面。"
+        : error.statusText || details;
+  } else if (import.meta.env.DEV && error && error instanceof Error) {
+    details = error.message;
+    stack = error.stack;
+  }
+
+  return (
+    <main className="pt-16 p-4 container mx-auto">
+      <h1>{message}</h1>
+      <p>{details}</p>
+      {stack && (
+        <pre className="w-full p-4 overflow-x-auto">
+          <code>{stack}</code>
+        </pre>
+      )}
+    </main>
+  );
+}
diff --git a/frontend/app/routes.ts b/frontend/app/routes.ts
new file mode 100644
index 0000000..87d802e
--- /dev/null
+++ b/frontend/app/routes.ts
@@ -0,0 +1,3 @@
+import { type RouteConfig, route } from "@react-router/dev/routes";
+
+export default [route("*", "routes/platform.tsx")] satisfies RouteConfig;
diff --git a/frontend/app/routes/platform.tsx b/frontend/app/routes/platform.tsx
new file mode 100644
index 0000000..6f9b64c
--- /dev/null
+++ b/frontend/app/routes/platform.tsx
@@ -0,0 +1,13 @@
+import type { Route } from "./+types/platform";
+import ModelPlatformApp from "../features/platform/ModelPlatformApp";
+
+export function meta({}: Route.MetaArgs) {
+  return [
+    { title: "模型实验开发平台" },
+    { name: "description", content: "模型实验、脚本版本与 DAG 调度平台" },
+  ];
+}
+
+export default function PlatformRoute() {
+  return <ModelPlatformApp />;
+}
diff --git a/frontend/app/services/api.ts b/frontend/app/services/api.ts
new file mode 100644
index 0000000..766b150
--- /dev/null
+++ b/frontend/app/services/api.ts
@@ -0,0 +1,853 @@
+export type DemoUser = {
+  userId: string;
+  userName: string;
+  username: string;
+  roleCode: "admin" | "developer";
+  roleName: string;
+};
+
+export type DemoWorkspace = {
+  workspaceId: string;
+  workspaceName: string;
+};
+
+export const demoUsers: DemoUser[] = [
+  { userId: "0000000000RF6FG1SDBXG59S13", userName: "张三", username: "admin-zhang", roleCode: "admin", roleName: "管理员" },
+  { userId: "0000000000H2QYCGPCWQM1JSGS", userName: "李四", username: "admin-li", roleCode: "admin", roleName: "管理员" },
+  { userId: "0000000000RWG40ESZPGJT629J", userName: "王五", username: "dev-wang", roleCode: "developer", roleName: "开发人员" },
+  { userId: "00000000004CQV7WASJA6N6FW4", userName: "赵六", username: "dev-zhao", roleCode: "developer", roleName: "开发人员" },
+];
+
+export const demoWorkspaces: DemoWorkspace[] = [
+  { workspaceId: "00000000000BM630VT9ARVFZPC", workspaceName: "模型开发 Workspace" },
+  { workspaceId: "0000000000AE0NC0V5T424KK86", workspaceName: "风险验证 Workspace" },
+];
+
+function readStoredContext(): Partial<{
+  userId: string;
+  workspaceId: string;
+}> {
+  if (typeof window === "undefined") return {};
+  try {
+    return JSON.parse(
+      window.localStorage.getItem("model-platform-demo-context") ?? "{}",
+    ) as Partial<{ userId: string; workspaceId: string }>;
+  } catch {
+    return {};
+  }
+}
+
+const storedContext = readStoredContext();
+const initialUser = demoUsers.find((item) => item.userId === storedContext.userId)
+  ?? demoUsers[0];
+const initialWorkspace = demoWorkspaces.find(
+  (item) => item.workspaceId === storedContext.workspaceId,
+) ?? demoWorkspaces[0];
+
+export const demoContext = {
+  ...initialUser,
+  ...initialWorkspace,
+};
+
+export function setDemoContext(input: {
+  user?: DemoUser;
+  workspace?: DemoWorkspace;
+}): void {
+  if (input.user) Object.assign(demoContext, input.user);
+  if (input.workspace) Object.assign(demoContext, input.workspace);
+  if (typeof window !== "undefined") {
+    window.localStorage.setItem("model-platform-demo-context", JSON.stringify({
+      userId: demoContext.userId,
+      workspaceId: demoContext.workspaceId,
+    }));
+  }
+}
+
+export type ScriptType = "python" | "notebook";
+export type Visibility = "private" | "workspace" | "public";
+
+export type Employee = {
+  user_id: string;
+  username: string;
+  display_name: string;
+  email: string | null;
+  status: "active" | "disabled" | "locked";
+  role_code: "admin" | "developer";
+  role_name: string;
+  created_at: string;
+};
+
+export type ScriptItem = {
+  script_id: string;
+  workspace_id: string;
+  current_object_id: string;
+  owner_user_id: string;
+  script_name: string;
+  script_type: ScriptType;
+  visibility: Visibility;
+  status: string;
+  relative_path: string;
+  content_hash: string;
+  size_bytes: number;
+  created_at: string;
+  updated_at: string;
+};
+
+export type WorkspaceDirectory = {
+  path: string;
+  name: string;
+  parent_path: string;
+};
+
+type ApiEnvelope<T> = {
+  request_id: string;
+  data: T;
+  meta: Record<string, unknown>;
+};
+
+type ApiErrorEnvelope = {
+  detail?: string | {
+    code?: string;
+    message?: string;
+  };
+  error?: {
+    code?: string;
+    message?: string;
+    details?: {
+      editor_name?: string;
+      lease_expires_at?: string;
+    };
+  };
+};
+
+export class ApiRequestError extends Error {
+  readonly status: number;
+  readonly code?: string;
+
+  constructor(message: string, status: number, code?: string) {
+    super(message);
+    this.name = "ApiRequestError";
+    this.status = status;
+    this.code = code;
+  }
+}
+
+async function apiRequest<T>(
+  path: string,
+  init: RequestInit = {},
+): Promise<T> {
+  const response = await fetch(path, {
+    ...init,
+    credentials: "same-origin",
+    headers: {
+      "X-User-ID": demoContext.userId,
+      "X-Workspace-ID": demoContext.workspaceId,
+      "X-Request-ID": crypto.randomUUID().replaceAll("-", ""),
+      ...(init.body ? { "Content-Type": "application/json" } : {}),
+      ...init.headers,
+    },
+  });
+
+  const payload = (await response.json().catch(() => ({}))) as
+    | ApiEnvelope<T>
+    | ApiErrorEnvelope;
+  if (!response.ok) {
+    const error = payload as ApiErrorEnvelope;
+    const detailMessage = typeof error.detail === "string"
+      ? error.detail
+      : error.detail?.message;
+    const editor = error.error?.details?.editor_name;
+    throw new ApiRequestError(
+      (editor ? `${error.error?.message ?? "文件正在编辑"}（${editor}）` : undefined)
+        ?? error.error?.message
+        ?? detailMessage
+        ?? `请求失败（HTTP ${response.status}）`,
+      response.status,
+      typeof error.detail === "object"
+        ? error.detail?.code
+        : error.error?.code,
+    );
+  }
+  return (payload as ApiEnvelope<T>).data;
+}
+
+export async function listScripts(): Promise<ScriptItem[]> {
+  return apiRequest<ScriptItem[]>("/api/v1/scripts");
+}
+
+function initialContent(scriptType: ScriptType): string {
+  if (scriptType === "python") {
+    return [
+      '"""模型实验开发平台构建脚本。"""',
+      "",
+      "",
+      "def main() -> None:",
+      '    print("Hello, Model Platform!")',
+      "",
+      "",
+      'if __name__ == "__main__":',
+      "    main()",
+      "",
+    ].join("\n");
+  }
+
+  return JSON.stringify(
+    {
+      cells: [
+        {
+          cell_type: "markdown",
+          metadata: {},
+          source: ["# 新建模型实验\\n", "在这里开始数据探索与模型构建。"],
+        },
+        {
+          cell_type: "code",
+          execution_count: null,
+          metadata: {},
+          outputs: [],
+          source: ["print('Hello, Model Platform!')\\n"],
+        },
+      ],
+      metadata: {
+        kernelspec: {
+          display_name: "Python 3",
+          language: "python",
+          name: "python3",
+        },
+        language_info: {
+          name: "python",
+          version: "3.12",
+        },
+      },
+      nbformat: 4,
+      nbformat_minor: 5,
+    },
+    null,
+    2,
+  );
+}
+
+export async function createScript(input: {
+  name: string;
+  scriptType: ScriptType;
+  visibility: Visibility;
+  parentPath?: string | null;
+}): Promise<ScriptItem> {
+  return apiRequest<ScriptItem>("/api/v1/scripts", {
+    method: "POST",
+    body: JSON.stringify({
+      script_name: input.name.trim(),
+      script_type: input.scriptType,
+      visibility: input.visibility,
+      content: initialContent(input.scriptType),
+      parent_path: input.parentPath,
+    }),
+  });
+}
+
+export async function uploadScript(
+  file: File,
+  parentPath = "",
+  visibility: Visibility = "workspace",
+): Promise<ScriptItem> {
+  const parameters = new URLSearchParams({
+    file_name: file.name,
+    parent_path: parentPath,
+    visibility,
+  });
+  return apiRequest<ScriptItem>(
+    `/api/v1/scripts/upload?${parameters.toString()}`,
+    {
+      method: "POST",
+      headers: { "Content-Type": "application/octet-stream" },
+      body: file,
+    },
+  );
+}
+
+export async function deleteScript(
+  scriptId: string,
+): Promise<{ script_id: string; status: string; versions_preserved: boolean }> {
+  return apiRequest(`/api/v1/scripts/${scriptId}`, { method: "DELETE" });
+}
+
+export async function listWorkspaceDirectories(): Promise<
+  WorkspaceDirectory[]
+> {
+  const data = await apiRequest<{ directories: WorkspaceDirectory[] }>(
+    "/api/v1/workspace-tree",
+  );
+  return data.directories;
+}
+
+export async function createWorkspaceDirectory(
+  directoryName: string,
+  parentPath = "",
+): Promise<WorkspaceDirectory> {
+  return apiRequest<WorkspaceDirectory>("/api/v1/workspace-directories", {
+    method: "POST",
+    body: JSON.stringify({
+      directory_name: directoryName,
+      parent_path: parentPath,
+    }),
+  });
+}
+
+export async function deleteWorkspaceDirectory(
+  path: string,
+): Promise<{
+  path: string;
+  status: string;
+  deleted_scripts: number;
+  versions_preserved: boolean;
+}> {
+  const parameters = new URLSearchParams({ path });
+  return apiRequest(`/api/v1/workspace-directories?${parameters.toString()}`, {
+    method: "DELETE",
+  });
+}
+
+export type FileLockSession = {
+  edit_session_id: string;
+  workspace_id: string;
+  storage_object_id: string;
+  user_id: string;
+  session_status: "active" | "closed" | "expired";
+  lease_seconds: number;
+  heartbeat_interval_seconds: number;
+  expires_at: string;
+  runtime_id: string;
+  jupyter_session_id: string;
+  jupyter_url?: string;
+  relative_path?: string;
+  lock_token?: string;
+};
+
+export type ActiveEditSession = FileLockSession & {
+  script_id: string;
+  script_name: string;
+  lock_token: string;
+  ticket_expires_at?: string;
+};
+
+export type JupyterAccessTicket = {
+  edit_session_id: string;
+  jupyter_url: string;
+  expires_at: string;
+};
+
+export type StableVersion = {
+  versions_id: string;
+  workspace_id: string;
+  script_id: string;
+  source_object_id: string;
+  artifact_object_id: string;
+  version_no: number;
+  version_label: string;
+  source_path: string;
+  artifact_path: string;
+  content_hash: string;
+  file_size_bytes: number;
+  visibility: Visibility;
+  release_note: string | null;
+  created_by: string;
+  created_at: string;
+};
+
+export async function acquireFileLock(
+  script: ScriptItem,
+): Promise<ActiveEditSession> {
+  const session = await apiRequest<FileLockSession>(
+    `/api/v1/files/${script.current_object_id}/lock`,
+    { method: "POST" },
+  );
+  if (!session.lock_token) {
+    throw new Error("加锁成功响应缺少 lock_token");
+  }
+  return {
+    ...session,
+    script_id: script.script_id,
+    script_name: script.script_name,
+    lock_token: session.lock_token,
+  };
+}
+
+export async function heartbeatFileLock(
+  session: ActiveEditSession,
+): Promise<FileLockSession> {
+  return apiRequest<FileLockSession>(
+    `/api/v1/file-locks/${session.edit_session_id}/heartbeat`,
+    {
+      method: "POST",
+      body: JSON.stringify({ lock_token: session.lock_token }),
+    },
+  );
+}
+
+export async function releaseFileLock(
+  session: ActiveEditSession,
+): Promise<FileLockSession> {
+  return apiRequest<FileLockSession>(
+    `/api/v1/file-locks/${session.edit_session_id}`,
+    {
+      method: "DELETE",
+      body: JSON.stringify({ lock_token: session.lock_token }),
+    },
+  );
+}
+
+export function releaseFileLockOnUnload(session: ActiveEditSession): void {
+  void fetch(`/api/v1/file-locks/${session.edit_session_id}`, {
+    method: "DELETE",
+    credentials: "same-origin",
+    keepalive: true,
+    headers: {
+      "Content-Type": "application/json",
+      "X-User-ID": demoContext.userId,
+      "X-Workspace-ID": demoContext.workspaceId,
+      "X-Request-ID": crypto.randomUUID().replaceAll("-", ""),
+    },
+    body: JSON.stringify({ lock_token: session.lock_token }),
+  });
+}
+
+export async function createJupyterAccessTicket(
+  session: ActiveEditSession,
+): Promise<JupyterAccessTicket> {
+  return apiRequest<JupyterAccessTicket>("/api/v1/jupyter/access-tickets", {
+    method: "POST",
+    body: JSON.stringify({
+      edit_session_id: session.edit_session_id,
+      lock_token: session.lock_token,
+    }),
+  });
+}
+
+export async function listScriptVersions(
+  scriptId: string,
+): Promise<StableVersion[]> {
+  return apiRequest<StableVersion[]>(`/api/v1/scripts/${scriptId}/versions`);
+}
+
+export async function publishScriptVersion(input: {
+  script: ScriptItem;
+  releaseNote: string;
+  visibility: Visibility;
+}): Promise<StableVersion> {
+  return apiRequest<StableVersion>(
+    `/api/v1/scripts/${input.script.script_id}/versions`,
+    {
+      method: "POST",
+      body: JSON.stringify({
+        source_object_id: input.script.current_object_id,
+        release_note: input.releaseNote.trim() || null,
+        visibility: input.visibility,
+      }),
+    },
+  );
+}
+
+export type ScheduleArtifact = {
+  versions_id: string;
+  version_label: string;
+  script_id: string;
+  script_name: string;
+  script_type: ScriptType;
+  content_hash: string;
+  file_size_bytes: number;
+  visibility: Visibility;
+  created_by: string;
+  created_at: string;
+};
+
+export type ScheduleNode = {
+  node_id: string;
+  schedule_id: string;
+  node_key: string;
+  node_name: string;
+  versions_id: string;
+  timeout_seconds: number;
+  retry_count: number;
+  retry_interval_sec: number;
+  position_x: number;
+  position_y: number;
+  arguments_json: Record<string, unknown>;
+  env_refs_json: Record<string, string>;
+  created_at: string;
+  updated_at: string;
+  version: {
+    versions_id: string;
+    version_label: string;
+    script_id: string;
+    script_name: string;
+    script_type: ScriptType;
+    content_hash: string;
+    created_at: string;
+  };
+};
+
+export type ScheduleEdge = {
+  edge_id: string;
+  schedule_id: string;
+  source_node_id: string;
+  target_node_id: string;
+  condition_expr: string | null;
+  created_at: string;
+};
+
+export type DagValidation = {
+  valid: boolean;
+  node_count: number;
+  edge_count: number;
+  root_node_ids: string[];
+  leaf_node_ids: string[];
+  topological_order: string[];
+  errors: Array<{
+    code: string;
+    message: string;
+    edge_id?: string;
+    node_ids?: string[];
+  }>;
+};
+
+export type Schedule = {
+  schedule_id: string;
+  workspace_id: string;
+  schedule_name: string;
+  description: string | null;
+  trigger_type: "manual" | "cron" | "api";
+  cron_expression: string | null;
+  timezone: string;
+  enabled: boolean;
+  workflow_version: number;
+  max_concurrency: number;
+  failure_policy: "stop" | "continue";
+  last_run_at: string | null;
+  next_run_at: string | null;
+  created_by: string;
+  updated_by: string;
+  created_at: string;
+  updated_at: string;
+  node_count: number;
+  edge_count: number;
+  nodes: ScheduleNode[];
+  edges: ScheduleEdge[];
+  dag_validation: DagValidation;
+};
+
+export type CronPreview = {
+  cron_expression: string;
+  timezone: string;
+  base_time: string;
+  occurrences: Array<{
+    local_time: string;
+    utc_time: string;
+  }>;
+};
+
+export type ScheduleRunStatus =
+  | "queued"
+  | "running"
+  | "succeeded"
+  | "failed"
+  | "cancelled"
+  | "timed_out";
+
+export type ScheduleNodeRunStatus =
+  | ScheduleRunStatus
+  | "skipped";
+
+export type ScheduleRunSummary = {
+  run_id: string;
+  schedule_id: string;
+  workspace_id: string;
+  workflow_version: number;
+  trigger_type: "manual" | "cron" | "api" | "retry";
+  run_status: ScheduleRunStatus;
+  state_version: number;
+  queued_at: string;
+  started_at: string | null;
+  finished_at: string | null;
+  duration_ms: number | null;
+  error_code: string | null;
+  error_message: string | null;
+  logs_object_id: string | null;
+  result_object_id: string | null;
+};
+
+export type ScheduleNodeRun = {
+  node_run_id: string;
+  run_id: string;
+  node_id: string;
+  versions_id: string;
+  attempt_no: number;
+  node_status: ScheduleNodeRunStatus;
+  state_version: number;
+  started_at: string | null;
+  finished_at: string | null;
+  duration_ms: number | null;
+  exit_code: number | null;
+  message: string | null;
+  logs_object_id: string | null;
+  result_object_id: string | null;
+};
+
+export type ScheduleRunDetail = ScheduleRunSummary & {
+  node_runs: ScheduleNodeRun[];
+};
+
+export async function listSchedules(): Promise<Schedule[]> {
+  return apiRequest<Schedule[]>("/api/v1/schedules");
+}
+
+export async function getSchedule(scheduleId: string): Promise<Schedule> {
+  return apiRequest<Schedule>(`/api/v1/schedules/${scheduleId}`);
+}
+
+export async function createSchedule(input: {
+  schedule_name: string;
+  description?: string | null;
+  trigger_type?: "manual" | "cron" | "api";
+  cron_expression?: string | null;
+  timezone?: string;
+  enabled?: boolean;
+  max_concurrency?: number;
+  failure_policy?: "stop" | "continue";
+}): Promise<Schedule> {
+  return apiRequest<Schedule>("/api/v1/schedules", {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function updateSchedule(
+  scheduleId: string,
+  input: {
+    workflow_version: number;
+    schedule_name?: string;
+    description?: string | null;
+    trigger_type?: "manual" | "cron" | "api";
+    cron_expression?: string | null;
+    timezone?: string;
+    enabled?: boolean;
+    max_concurrency?: number;
+    failure_policy?: "stop" | "continue";
+  },
+): Promise<Schedule> {
+  return apiRequest<Schedule>(`/api/v1/schedules/${scheduleId}`, {
+    method: "PATCH",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function deleteSchedule(
+  scheduleId: string,
+  workflowVersion: number,
+): Promise<{ schedule_id: string; deleted: boolean; workflow_version: number }> {
+  return apiRequest(`/api/v1/schedules/${scheduleId}`, {
+    method: "DELETE",
+    body: JSON.stringify({ workflow_version: workflowVersion }),
+  });
+}
+
+export async function listScheduleArtifacts(): Promise<ScheduleArtifact[]> {
+  return apiRequest<ScheduleArtifact[]>("/api/v1/schedule-artifacts");
+}
+
+export async function hideScheduleArtifact(
+  versionsId: string,
+): Promise<{
+  versions_id: string;
+  deleted: boolean;
+  artifact_preserved: boolean;
+}> {
+  return apiRequest(`/api/v1/versions/${versionsId}`, {
+    method: "DELETE",
+  });
+}
+
+export async function listEmployees(): Promise<Employee[]> {
+  return apiRequest<Employee[]>("/api/v1/admin/employees");
+}
+
+export async function createEmployee(input: {
+  username: string;
+  display_name: string;
+  email?: string | null;
+  role_code: "admin" | "developer";
+}): Promise<Employee> {
+  return apiRequest<Employee>("/api/v1/admin/employees", {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function updateEmployee(
+  userId: string,
+  input: {
+    display_name?: string;
+    email?: string | null;
+    role_code?: "admin" | "developer";
+    status?: "active" | "disabled" | "locked";
+  },
+): Promise<Employee> {
+  return apiRequest<Employee>(`/api/v1/admin/employees/${userId}`, {
+    method: "PATCH",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function deleteEmployee(
+  userId: string,
+): Promise<{ user_id: string; deleted: boolean }> {
+  return apiRequest(`/api/v1/admin/employees/${userId}`, {
+    method: "DELETE",
+  });
+}
+
+export async function createScheduleNode(
+  scheduleId: string,
+  input: {
+    workflow_version: number;
+    node_key: string;
+    node_name: string;
+    versions_id: string;
+    timeout_seconds?: number;
+    retry_count?: number;
+    retry_interval_sec?: number;
+    position_x?: number;
+    position_y?: number;
+    arguments_json?: Record<string, unknown>;
+    env_refs_json?: Record<string, string>;
+  },
+): Promise<Schedule> {
+  return apiRequest<Schedule>(`/api/v1/schedules/${scheduleId}/nodes`, {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function updateScheduleNode(
+  scheduleId: string,
+  nodeId: string,
+  input: {
+    workflow_version: number;
+    node_name?: string;
+    versions_id?: string;
+    timeout_seconds?: number;
+    retry_count?: number;
+    retry_interval_sec?: number;
+    position_x?: number;
+    position_y?: number;
+    arguments_json?: Record<string, unknown>;
+    env_refs_json?: Record<string, string>;
+  },
+): Promise<Schedule> {
+  return apiRequest<Schedule>(
+    `/api/v1/schedules/${scheduleId}/nodes/${nodeId}`,
+    {
+      method: "PUT",
+      body: JSON.stringify(input),
+    },
+  );
+}
+
+export async function deleteScheduleNode(
+  scheduleId: string,
+  nodeId: string,
+  workflowVersion: number,
+): Promise<Schedule> {
+  return apiRequest<Schedule>(
+    `/api/v1/schedules/${scheduleId}/nodes/${nodeId}`,
+    {
+      method: "DELETE",
+      body: JSON.stringify({ workflow_version: workflowVersion }),
+    },
+  );
+}
+
+export async function createScheduleEdge(
+  scheduleId: string,
+  input: {
+    workflow_version: number;
+    source_node_id: string;
+    target_node_id: string;
+    condition_expr?: string | null;
+  },
+): Promise<Schedule> {
+  return apiRequest<Schedule>(`/api/v1/schedules/${scheduleId}/edges`, {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function deleteScheduleEdge(
+  scheduleId: string,
+  edgeId: string,
+  workflowVersion: number,
+): Promise<Schedule> {
+  return apiRequest<Schedule>(
+    `/api/v1/schedules/${scheduleId}/edges/${edgeId}`,
+    {
+      method: "DELETE",
+      body: JSON.stringify({ workflow_version: workflowVersion }),
+    },
+  );
+}
+
+export async function validateSchedule(
+  scheduleId: string,
+): Promise<DagValidation & {
+  schedule_id: string;
+  workflow_version: number;
+}> {
+  return apiRequest(`/api/v1/schedules/${scheduleId}/validate`, {
+    method: "POST",
+  });
+}
+
+export async function previewCron(input: {
+  cron_expression: string;
+  timezone: string;
+  count?: number;
+  base_time?: string;
+}): Promise<CronPreview> {
+  return apiRequest<CronPreview>("/api/v1/cron/preview", {
+    method: "POST",
+    body: JSON.stringify(input),
+  });
+}
+
+export async function runScheduleNow(
+  scheduleId: string,
+): Promise<ScheduleRunDetail> {
+  return apiRequest<ScheduleRunDetail>(
+    `/api/v1/schedules/${scheduleId}/run`,
+    {
+      method: "POST",
+      headers: {
+        "Idempotency-Key": crypto.randomUUID(),
+      },
+      body: JSON.stringify({ reason: "manual_run" }),
+    },
+  );
+}
+
+export async function listScheduleRuns(input: {
+  scheduleId?: string;
+  status?: ScheduleRunStatus;
+  limit?: number;
+} = {}): Promise<ScheduleRunSummary[]> {
+  const query = new URLSearchParams();
+  if (input.scheduleId) query.set("schedule_id", input.scheduleId);
+  if (input.status) query.set("status", input.status);
+  query.set("limit", String(input.limit ?? 20));
+  return apiRequest<ScheduleRunSummary[]>(
+    `/api/v1/schedule-runs?${query.toString()}`,
+  );
+}
+
+export async function getScheduleRun(
+  runId: string,
+): Promise<ScheduleRunDetail> {
+  return apiRequest<ScheduleRunDetail>(`/api/v1/schedule-runs/${runId}`);
+}
diff --git a/frontend/app/styles/admin.css b/frontend/app/styles/admin.css
new file mode 100644
index 0000000..bbc9519
--- /dev/null
+++ b/frontend/app/styles/admin.css
@@ -0,0 +1 @@
+.dashboard-page,.admin-page{height:100%;padding:24px;overflow:auto;background:#f3f6f9}.dashboard-hero{display:flex;align-items:center;justify-content:space-between;padding:34px;border-radius:12px;color:#fff;background:linear-gradient(125deg,#0b3d69,#1978d4);box-shadow:0 12px 30px rgb(19 80 137/18%)}.dashboard-hero span{font-size:10px;letter-spacing:.12em;opacity:.82}.dashboard-hero h2{margin:8px 0 5px;font-size:25px}.dashboard-hero p{margin:0;font-size:12px;opacity:.88}.dashboard-hero__badge{padding:8px 12px;border-radius:20px;background:rgb(255 255 255/16%)}.dashboard-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.dashboard-metrics article{display:flex;align-items:center;gap:14px;padding:20px;border:1px solid #e0e8ef;border-radius:9px;background:#fff}.dashboard-metrics svg{color:#1978d4}.dashboard-metrics span{display:flex;flex-direction:column}.dashboard-metrics b{color:#20364c;font-size:21px}.dashboard-metrics small{color:#8796a6}.dashboard-actions{display:flex;gap:12px;margin-top:18px}.dashboard-actions button{display:flex;align-items:center;gap:8px;padding:13px 18px;border:1px solid #d8e4ef;border-radius:7px;color:#346587;background:#fff;cursor:pointer}.admin-page__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px;padding:20px 22px;border:1px solid #dee7ef;border-radius:9px;background:#fff}.admin-page__header span{color:#1978d4;font-size:10px;font-weight:800}.admin-page__header h2{margin:4px 0;color:#20364c}.admin-page__header p{margin:0;color:#8a99a8;font-size:11px}.admin-readonly{margin-bottom:12px;padding:10px 13px;border:1px solid #f1d79c;border-radius:6px;color:#8a6416;background:#fff8e8;font-size:11px}.employee-table{overflow:hidden;border:1px solid #dfe7ee;border-radius:9px;background:#fff}.employee-table__head,.employee-row{display:grid;grid-template-columns:1.5fr 1fr .7fr .65fr .8fr;align-items:center;gap:12px;padding:12px 17px}.employee-table__head{color:#748598;background:#f5f8fb;font-size:10px;font-weight:700}.employee-row{min-height:64px;border-top:1px solid #edf1f5;color:#44576a;font-size:11px}.employee-name{display:flex;align-items:center;gap:10px}.employee-name .avatar{display:grid;width:32px;height:32px;place-items:center}.employee-name>span{display:flex;min-width:0;flex-direction:column}.employee-name strong{color:#23384e}.employee-name small{margin-top:3px;color:#93a0ae}.employee-row code{color:#60758b}.role-pill,.status-pill{width:max-content;padding:4px 8px;border-radius:12px}.role-pill{color:#1d6ab3;background:#eaf4ff}.role-pill.is-admin{color:#87580f;background:#fff2d6}.status-pill{color:#138657;background:#e8f8f1}.status-pill.is-disabled,.status-pill.is-locked{color:#a64b4b;background:#ffeded}.employee-actions{display:flex;gap:6px}.employee-actions button{padding:5px 9px;border:1px solid #d9e3ec;border-radius:4px;color:#4c6c88;background:#fff;cursor:pointer}.employee-actions button.is-danger{color:#c14a4a}.employee-actions button:disabled{cursor:not-allowed;opacity:.45}.admin-empty{padding:25px;text-align:center;color:#8796a6}
diff --git a/frontend/app/styles/dashboard.css b/frontend/app/styles/dashboard.css
new file mode 100644
index 0000000..8331a96
--- /dev/null
+++ b/frontend/app/styles/dashboard.css
@@ -0,0 +1,185 @@
+.dashboard-grid {
+  display: grid;
+  grid-template-columns: minmax(0, 1.6fr) minmax(310px, .9fr);
+  gap: 14px;
+  margin-top: 18px;
+  padding-bottom: 25px;
+}
+.dashboard-panel {
+  border: 1px solid #dfe7ee;
+  border-radius: 10px;
+  background: #fff;
+  box-shadow: 0 5px 16px rgb(33 65 97 / 5%);
+}
+.dashboard-panel > header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 17px 20px;
+  border-bottom: 1px solid #edf1f5;
+}
+.dashboard-panel header span {
+  color: #7890a6;
+  font-size: 9px;
+  font-weight: 800;
+  letter-spacing: .09em;
+}
+.dashboard-panel h3 {
+  margin: 4px 0 0;
+  color: #263b50;
+  font-size: 14px;
+}
+.dashboard-panel--trend > header > b {
+  padding: 5px 9px;
+  border-radius: 13px;
+  color: #16855a;
+  background: #e8f8f1;
+  font-size: 10px;
+}
+.trend-chart {
+  display: flex;
+  height: 190px;
+  align-items: flex-end;
+  gap: 18px;
+  padding: 26px 28px 17px;
+  background: repeating-linear-gradient(to bottom, #fff 0, #fff 44px, #eef3f7 45px);
+}
+.trend-column {
+  display: flex;
+  height: 100%;
+  flex: 1;
+  align-items: center;
+  justify-content: flex-end;
+  flex-direction: column;
+  gap: 5px;
+}
+.trend-column i {
+  display: block;
+  width: min(36px, 72%);
+  min-height: 12px;
+  border-radius: 5px 5px 2px 2px;
+  background: linear-gradient(#49a0eb, #207bd1);
+  box-shadow: 0 4px 9px rgb(32 123 209 / 18%);
+}
+.trend-column__value, .trend-column small {
+  color: #7890a3;
+  font-size: 9px;
+}
+.dashboard-panel--trend footer {
+  display: flex;
+  justify-content: center;
+  gap: 22px;
+  padding: 10px;
+  color: #708397;
+  font-size: 9px;
+}
+.dashboard-panel footer span {
+  display: flex;
+  align-items: center;
+  gap: 5px;
+}
+.legend-dot {
+  display: inline-block;
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+}
+.legend-dot.is-success { background: #27b87c; }
+.legend-dot.is-failed { background: #ed7777; }
+.legend-dot.is-notebook { background: #318de0; }
+.legend-dot.is-python { background: #72c9b0; }
+.legend-dot.is-version { background: #f3b75c; }
+.donut-layout {
+  display: flex;
+  min-height: 226px;
+  align-items: center;
+  justify-content: center;
+  gap: 28px;
+  padding: 20px;
+}
+.donut-chart {
+  position: relative;
+  display: grid;
+  width: 128px;
+  height: 128px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 50%;
+  background: conic-gradient(#318de0 0 67%, #72c9b0 67% 86%, #f3b75c 86% 100%);
+}
+.donut-chart::after {
+  position: absolute;
+  width: 78px;
+  height: 78px;
+  border-radius: 50%;
+  background: #fff;
+  content: "";
+}
+.donut-chart span {
+  z-index: 1;
+  display: flex;
+  align-items: center;
+  flex-direction: column;
+}
+.donut-chart b { color: #273d53; font-size: 20px; }
+.donut-chart small { color: #8a9aaa; font-size: 8px; }
+.donut-legend { display: flex; flex-direction: column; gap: 15px; }
+.donut-legend > span {
+  display: grid;
+  grid-template-columns: 8px 1fr;
+  align-items: center;
+  column-gap: 7px;
+}
+.donut-legend b { color: #40566c; font-size: 10px; }
+.donut-legend small { grid-column: 2; color: #8a9baa; font-size: 8px; }
+.dashboard-panel--activity { grid-column: 1 / -1; }
+.dashboard-panel--activity > header > button {
+  border: 0;
+  color: #257bcb;
+  background: transparent;
+  font-size: 10px;
+}
+.activity-table__head, .activity-row {
+  display: grid;
+  grid-template-columns: 2fr .7fr .55fr .5fr;
+  align-items: center;
+  gap: 15px;
+  padding: 11px 20px;
+}
+.activity-table__head {
+  color: #8595a5;
+  background: #f7f9fb;
+  font-size: 9px;
+  font-weight: 700;
+}
+.activity-row {
+  border-top: 1px solid #edf1f5;
+  color: #607488;
+  font-size: 10px;
+}
+.activity-row > span:first-child {
+  display: flex;
+  align-items: center;
+  gap: 9px;
+  color: #344c63;
+}
+.activity-icon {
+  display: grid;
+  width: 25px;
+  height: 25px;
+  place-items: center;
+  border-radius: 6px;
+  color: #277fcc;
+  background: #eaf4ff;
+}
+.activity-row b {
+  padding: 3px 7px;
+  border-radius: 10px;
+  color: #16855a;
+  background: #e9f8f2;
+  font-size: 9px;
+}
+@media (max-width: 1200px) {
+  .dashboard-grid { grid-template-columns: 1fr; }
+  .dashboard-panel--activity { grid-column: auto; }
+}
diff --git a/frontend/app/styles/platform.css b/frontend/app/styles/platform.css
new file mode 100644
index 0000000..de9e162
--- /dev/null
+++ b/frontend/app/styles/platform.css
@@ -0,0 +1,1868 @@
+:root {
+  font-family:
+    Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system,
+    BlinkMacSystemFont, "Segoe UI", sans-serif;
+  color: #1d2a3b;
+  background: #eef2f6;
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+body {
+  min-width: 1120px;
+  min-height: 100vh;
+  margin: 0;
+  overflow: hidden;
+}
+
+button,
+input,
+select {
+  font: inherit;
+}
+
+button {
+  color: inherit;
+}
+
+.app-shell {
+  display: flex;
+  min-height: 100vh;
+  background: #eef2f6;
+}
+
+.sidebar {
+  position: relative;
+  z-index: 3;
+  display: flex;
+  width: 210px;
+  min-width: 210px;
+  flex-direction: column;
+  min-height: 100vh;
+  color: #c9d7e7;
+  background:
+    radial-gradient(circle at 10% 1%, rgb(28 105 186 / 25%), transparent 27%),
+    #09233f;
+  box-shadow: 5px 0 18px rgb(19 47 77 / 9%);
+}
+
+.brand {
+  display: flex;
+  height: 70px;
+  align-items: center;
+  gap: 10px;
+  padding: 0 17px;
+  border-bottom: 1px solid rgb(255 255 255 / 8%);
+  color: #fff;
+}
+
+.brand__mark {
+  display: grid;
+  width: 36px;
+  height: 36px;
+  flex: 0 0 auto;
+  place-items: center;
+  color: #5ca9ff;
+}
+
+.brand__name {
+  white-space: nowrap;
+  font-size: 15px;
+  font-weight: 700;
+  letter-spacing: .01em;
+}
+
+.navigation {
+  display: flex;
+  flex-direction: column;
+  gap: 7px;
+  padding: 19px 9px;
+}
+
+.nav-item,
+.sidebar-footer {
+  display: flex;
+  height: 48px;
+  align-items: center;
+  gap: 13px;
+  padding: 0 17px;
+  border: 0;
+  border-radius: 6px;
+  color: #b9cade;
+  background: transparent;
+  cursor: pointer;
+  font-size: 14px;
+  text-align: left;
+  transition: .18s ease;
+}
+
+.nav-item:hover,
+.sidebar-footer:hover {
+  color: #fff;
+  background: rgb(255 255 255 / 6%);
+}
+
+.nav-item--active {
+  color: #fff;
+  background: linear-gradient(135deg, #1479e8, #1267ca);
+  box-shadow: 0 7px 18px rgb(7 96 193 / 26%);
+}
+
+.sidebar-footer {
+  width: calc(100% - 18px);
+  margin: auto 9px 17px;
+}
+
+.main-area {
+  display: flex;
+  min-width: 0;
+  flex: 1;
+  flex-direction: column;
+  height: 100vh;
+}
+
+.topbar {
+  position: relative;
+  z-index: 2;
+  display: flex;
+  height: 70px;
+  min-height: 70px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 22px;
+  border-bottom: 1px solid #dfe6ee;
+  background: #fff;
+}
+
+.page-title,
+.topbar__actions,
+.workspace-switcher,
+.user-menu {
+  display: flex;
+  align-items: center;
+}
+
+.page-title {
+  gap: 9px;
+}
+
+.page-title h1 {
+  margin: 1px 0 0;
+  color: #14243a;
+  font-size: 18px;
+  line-height: 1.1;
+}
+
+.page-title__eyebrow {
+  color: #94a2b3;
+  font-size: 10px;
+  font-weight: 650;
+  letter-spacing: .08em;
+  text-transform: uppercase;
+}
+
+.icon-button {
+  display: grid;
+  width: 34px;
+  height: 34px;
+  place-items: center;
+  border: 1px solid #dfe6ed;
+  border-radius: 7px;
+  background: #fff;
+  cursor: pointer;
+}
+
+.icon-button:hover {
+  border-color: #b9c9da;
+  background: #f7faff;
+}
+
+.icon-button--back {
+  width: 31px;
+  border-color: transparent;
+  color: #7b8999;
+  transform: rotate(180deg);
+}
+
+.topbar__actions {
+  gap: 14px;
+}
+
+.topbar-menu-wrap {
+  position: relative;
+}
+
+.topbar-dropdown {
+  position: absolute;
+  z-index: 50;
+  top: calc(100% + 7px);
+  right: 0;
+  width: 260px;
+  padding: 6px;
+  border: 1px solid #dce5ed;
+  border-radius: 8px;
+  background: #fff;
+  box-shadow: 0 14px 38px rgb(17 43 70 / 18%);
+}
+
+.topbar-dropdown--users {
+  width: 220px;
+}
+
+.topbar-dropdown > button {
+  display: flex;
+  width: 100%;
+  align-items: center;
+  gap: 10px;
+  padding: 9px 10px;
+  border: 0;
+  border-radius: 6px;
+  color: #40576d;
+  background: transparent;
+  text-align: left;
+  cursor: pointer;
+}
+
+.topbar-dropdown > button:hover,
+.topbar-dropdown > button.is-selected {
+  background: #edf6ff;
+}
+
+.topbar-dropdown > button > span:not(.avatar) {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.topbar-dropdown strong {
+  overflow: hidden;
+  color: #243a50;
+  font-size: 11px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.topbar-dropdown small {
+  color: #8797a7;
+  font-size: 9px;
+}
+
+.api-state {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+  color: #768597;
+  font-size: 12px;
+}
+
+.api-state__dot {
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+  background: #d05151;
+  box-shadow: 0 0 0 3px rgb(208 81 81 / 10%);
+}
+
+.api-state__dot.is-online {
+  background: #19b878;
+  box-shadow: 0 0 0 3px rgb(25 184 120 / 11%);
+}
+
+.workspace-switcher,
+.user-menu {
+  height: 46px;
+  gap: 9px;
+  padding: 0 11px;
+  border: 1px solid #e0e7ee;
+  border-radius: 8px;
+  background: #fff;
+  cursor: pointer;
+}
+
+.workspace-switcher:hover,
+.user-menu:hover {
+  border-color: #b9cce0;
+}
+
+.workspace-switcher__icon {
+  display: grid;
+  width: 30px;
+  height: 30px;
+  place-items: center;
+  border-radius: 7px;
+  color: #fff;
+  background: linear-gradient(145deg, #23aa73, #158d5d);
+}
+
+.workspace-switcher span:not(.workspace-switcher__icon),
+.user-menu__copy {
+  display: flex;
+  min-width: 155px;
+  flex-direction: column;
+  align-items: flex-start;
+}
+
+.workspace-switcher small,
+.user-menu small {
+  color: #97a3b1;
+  font-size: 10px;
+}
+
+.workspace-switcher strong,
+.user-menu strong {
+  max-width: 190px;
+  overflow: hidden;
+  color: #26384d;
+  font-size: 13px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.user-menu {
+  border-color: transparent;
+}
+
+.user-menu__copy {
+  min-width: 55px;
+}
+
+.avatar {
+  display: grid;
+  width: 34px;
+  height: 34px;
+  place-items: center;
+  border-radius: 50%;
+  color: #fff;
+  background: linear-gradient(145deg, #3b92ed, #1869c9);
+  font-size: 14px;
+  font-weight: 700;
+}
+
+.workspace-layout {
+  display: grid;
+  min-height: 0;
+  flex: 1;
+  grid-template-columns: 310px minmax(0, 1fr);
+  gap: 10px;
+  padding: 10px;
+}
+
+.explorer,
+.editor-area {
+  min-height: 0;
+  border: 1px solid #dce4ec;
+  border-radius: 7px;
+  background: #fff;
+  box-shadow: 0 2px 7px rgb(25 46 73 / 3%);
+}
+
+.explorer {
+  display: flex;
+  overflow: hidden;
+  flex-direction: column;
+}
+
+.explorer__header {
+  display: flex;
+  min-height: 64px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 14px;
+  border-bottom: 1px solid #e8edf2;
+}
+
+.explorer__header h2 {
+  margin: 0 0 2px;
+  color: #1d2d42;
+  font-size: 16px;
+}
+
+.explorer__header > div > span {
+  color: #9aa7b6;
+  font-size: 10px;
+}
+
+.explorer__actions {
+  display: flex;
+  align-items: center;
+  gap: 9px;
+}
+
+.text-button {
+  display: inline-flex;
+  align-items: center;
+  gap: 3px;
+  padding: 5px 1px;
+  border: 0;
+  color: #1474d4;
+  background: transparent;
+  cursor: pointer;
+  font-size: 12px;
+  font-weight: 600;
+}
+
+.text-button:hover {
+  color: #0d58a2;
+}
+
+.text-button:disabled {
+  cursor: wait;
+  opacity: .55;
+}
+
+.visually-hidden {
+  position: absolute !important;
+  width: 1px !important;
+  height: 1px !important;
+  overflow: hidden !important;
+  clip: rect(0 0 0 0) !important;
+  clip-path: inset(50%) !important;
+  white-space: nowrap !important;
+}
+
+.search-box {
+  display: flex;
+  height: 38px;
+  align-items: center;
+  gap: 7px;
+  margin: 11px 12px 7px;
+  padding: 0 9px;
+  border: 1px solid #dce5ed;
+  border-radius: 6px;
+  color: #95a2b1;
+  background: #fbfcfd;
+}
+
+.search-box:focus-within {
+  border-color: #6aa9e9;
+  box-shadow: 0 0 0 3px rgb(31 119 207 / 8%);
+}
+
+.search-box input {
+  min-width: 0;
+  flex: 1;
+  border: 0;
+  outline: 0;
+  color: #26384d;
+  background: transparent;
+  font-size: 12px;
+}
+
+.search-box input::placeholder {
+  color: #a7b2bf;
+}
+
+.search-box button {
+  display: grid;
+  width: 24px;
+  height: 24px;
+  place-items: center;
+  border: 0;
+  color: #8d9aaa;
+  background: transparent;
+  cursor: pointer;
+}
+
+.is-spinning svg {
+  animation: spin .7s linear infinite;
+}
+
+.tree-scroll {
+  min-height: 0;
+  flex: 1;
+  overflow-y: auto;
+  padding: 5px 7px 14px;
+}
+
+.tree-group {
+  margin-bottom: 7px;
+}
+
+.tree-group__title {
+  display: flex;
+  width: 100%;
+  height: 33px;
+  align-items: center;
+  gap: 6px;
+  padding: 0 7px;
+  border: 0;
+  color: #43556a;
+  background: transparent;
+  font-family: inherit;
+  font-size: 12px;
+  font-weight: 650;
+  text-align: left;
+  cursor: pointer;
+}
+
+.tree-group__title > svg:first-child {
+  color: #98a5b2;
+  transform: rotate(0);
+  transition: transform 0.15s ease;
+}
+
+.tree-group__title.is-open > svg:first-child {
+  transform: rotate(90deg);
+}
+
+.tree-group__title:hover {
+  background: #f4f8fc;
+}
+
+.tree-group__title > svg:nth-child(2) {
+  color: #eab434;
+  fill: #f7c84a;
+  stroke: #e0a828;
+}
+
+.tree-group__title em {
+  display: grid;
+  min-width: 19px;
+  height: 18px;
+  margin-left: auto;
+  place-items: center;
+  border-radius: 10px;
+  color: #778698;
+  background: #eef2f6;
+  font-size: 10px;
+  font-style: normal;
+}
+
+.tree-group__items {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  padding-left: 13px;
+}
+
+.directory-branch {
+  display: flex;
+  flex-direction: column;
+}
+
+.directory-row {
+  display: flex;
+  width: 100%;
+  height: 32px;
+  align-items: center;
+  gap: 6px;
+  padding-right: 9px;
+  border: 0;
+  border-radius: 5px;
+  color: #45586c;
+  background: transparent;
+  cursor: pointer;
+  text-align: left;
+}
+
+.directory-row:hover {
+  background: #f4f7fa;
+}
+
+.directory-row > svg {
+  flex: 0 0 auto;
+  color: #e2aa27;
+  fill: #f7c84a;
+}
+
+.directory-row strong {
+  overflow: hidden;
+  font-size: 11px;
+  font-weight: 650;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.directory-row__chevron {
+  display: grid;
+  flex: 0 0 auto;
+  place-items: center;
+  color: #94a2b1;
+  transition: transform .15s ease;
+}
+
+.directory-row__chevron.is-open {
+  transform: rotate(90deg);
+}
+
+.script-row {
+  display: flex;
+  width: 100%;
+  height: 47px;
+  align-items: center;
+  gap: 8px;
+  padding: 0 9px;
+  border: 1px solid transparent;
+  border-radius: 6px;
+  background: transparent;
+  cursor: pointer;
+  text-align: left;
+}
+
+.script-row:hover {
+  background: #f4f7fa;
+}
+
+.script-row--active {
+  border-color: #c6ddf4;
+  background: #eaf4ff;
+}
+
+.file-icon {
+  display: grid;
+  width: 25px;
+  height: 25px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 5px;
+}
+
+.file-icon--notebook {
+  color: #e15e50;
+  background: #fff0ed;
+}
+
+.file-icon--python {
+  color: #2e73c6;
+  background: #eaf3ff;
+}
+
+.script-row__copy {
+  display: flex;
+  min-width: 0;
+  flex: 1;
+  flex-direction: column;
+}
+
+.script-row__copy strong {
+  overflow: hidden;
+  color: #34475d;
+  font-size: 12px;
+  font-weight: 600;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.script-row__copy small {
+  margin-top: 2px;
+  color: #9ba8b7;
+  font-size: 9px;
+}
+
+.visibility-dot {
+  width: 6px;
+  height: 6px;
+  flex: 0 0 auto;
+  border-radius: 50%;
+  background: #1dbd7c;
+  box-shadow: 0 0 0 3px rgb(29 189 124 / 10%);
+}
+
+.tree-group__empty {
+  margin: 2px 0 7px 35px;
+  color: #a5b0bc;
+  font-size: 11px;
+}
+
+.tree-context-menu {
+  position: fixed;
+  z-index: 50;
+  display: flex;
+  width: 180px;
+  padding: 6px;
+  border: 1px solid #d9e2ea;
+  border-radius: 8px;
+  flex-direction: column;
+  background: #fff;
+  box-shadow: 0 14px 34px rgb(18 43 68 / 20%);
+}
+
+.tree-context-menu button {
+  display: flex;
+  height: 34px;
+  align-items: center;
+  gap: 9px;
+  padding: 0 9px;
+  border: 0;
+  border-radius: 5px;
+  color: #34475a;
+  background: transparent;
+  cursor: pointer;
+  font-size: 11px;
+  text-align: left;
+}
+
+.tree-context-menu button:hover {
+  color: #136dbd;
+  background: #eef6fd;
+}
+
+.tree-context-menu button.is-danger {
+  color: #c74848;
+}
+
+.tree-context-menu button.is-danger:hover {
+  background: #fff0f0;
+}
+
+.tree-context-menu__separator {
+  height: 1px;
+  margin: 5px 3px;
+  background: #e7ecf1;
+}
+
+.tree-empty {
+  display: flex;
+  align-items: center;
+  flex-direction: column;
+  padding: 34px 18px;
+  color: #97a4b4;
+  text-align: center;
+}
+
+.tree-empty__icon {
+  display: grid;
+  width: 46px;
+  height: 46px;
+  margin-bottom: 12px;
+  place-items: center;
+  border-radius: 13px;
+  color: #6796c5;
+  background: #eff6fd;
+}
+
+.tree-empty strong {
+  color: #637286;
+  font-size: 12px;
+}
+
+.tree-empty p {
+  margin: 6px 0 14px;
+  font-size: 10px;
+  line-height: 1.5;
+}
+
+.tree-empty button {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  padding: 7px 11px;
+  border: 1px solid #bcd6ee;
+  border-radius: 6px;
+  color: #176cc1;
+  background: #fff;
+  cursor: pointer;
+  font-size: 11px;
+}
+
+.tree-skeleton {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  padding: 15px 8px;
+}
+
+.tree-skeleton span {
+  height: 43px;
+  border-radius: 6px;
+  background: linear-gradient(90deg, #f2f5f8, #fafbfc, #f2f5f8);
+  background-size: 200% 100%;
+  animation: shimmer 1.3s infinite;
+}
+
+.editor-area {
+  display: flex;
+  overflow: hidden;
+  flex-direction: column;
+}
+
+.tabbar {
+  display: flex;
+  height: 43px;
+  min-height: 43px;
+  align-items: stretch;
+  border-bottom: 1px solid #e5ebf1;
+  background: #f7f9fb;
+}
+
+.editor-tab {
+  position: relative;
+  display: flex;
+  min-width: 190px;
+  max-width: 290px;
+  align-items: center;
+  gap: 8px;
+  padding: 0 11px;
+  border-right: 1px solid #e4eaf0;
+  color: #4b5c70;
+  background: #fff;
+  font-size: 12px;
+}
+
+.editor-tab--active::before {
+  position: absolute;
+  top: 0;
+  right: 0;
+  left: 0;
+  height: 2px;
+  background: #2381e5;
+  content: "";
+}
+
+.editor-tab > span:nth-child(2) {
+  overflow: hidden;
+  flex: 1;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.editor-tab button,
+.new-tab {
+  display: grid;
+  width: 25px;
+  height: 25px;
+  place-items: center;
+  border: 0;
+  color: #8e9baa;
+  background: transparent;
+  cursor: pointer;
+}
+
+.editor-tab button:hover,
+.new-tab:hover {
+  color: #43566c;
+  background: #edf1f5;
+}
+
+.new-tab {
+  align-self: center;
+  margin-left: 5px;
+  border-radius: 4px;
+}
+
+.editor-toolbar {
+  display: flex;
+  min-height: 53px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 14px;
+  border-bottom: 1px solid #e6ebf0;
+  background: #fff;
+}
+
+.editor-toolbar__path,
+.editor-toolbar__actions {
+  display: flex;
+  align-items: center;
+}
+
+.editor-toolbar__path {
+  min-width: 0;
+  gap: 7px;
+  color: #8794a3;
+  font-size: 11px;
+}
+
+.editor-toolbar__path strong {
+  overflow: hidden;
+  max-width: 300px;
+  color: #45576b;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.editor-toolbar__actions {
+  gap: 7px;
+}
+
+.editor-toolbar__actions button {
+  height: 31px;
+  padding: 0 11px;
+  border: 1px solid #d9e3ec;
+  border-radius: 5px;
+  color: #52708d;
+  background: #fff;
+  cursor: pointer;
+  font-size: 11px;
+}
+
+.editor-toolbar__actions button:hover {
+  border-color: #9dbbd8;
+  background: #f7fbff;
+}
+
+.editor-toolbar__actions button:disabled,
+.open-editor-button:disabled {
+  cursor: wait;
+  opacity: .7;
+}
+
+.editor-toolbar__actions .end-edit-button {
+  border-color: #e1b8b8;
+  color: #a34c4c;
+  background: #fff8f8;
+}
+
+.editor-toolbar__actions .release-button {
+  border-color: #e7c689;
+  color: #9b6a18;
+  background: #fffbf3;
+}
+
+.stage-badge {
+  display: inline-flex;
+  height: 29px;
+  align-items: center;
+  gap: 6px;
+  padding: 0 10px;
+  border-radius: 15px;
+  color: #16845c;
+  background: #eaf9f3;
+  font-size: 10px;
+}
+
+.stage-badge span {
+  width: 6px;
+  height: 6px;
+  border-radius: 50%;
+  background: #20bc7f;
+}
+
+.stage-badge.is-editing {
+  color: #126b9d;
+  background: #e9f5fd;
+}
+
+.stage-badge.is-editing span {
+  background: #2495d3;
+  box-shadow: 0 0 0 3px rgb(36 149 211 / 13%);
+  animation: lock-pulse 1.8s ease-in-out infinite;
+}
+
+.editor-canvas {
+  min-height: 0;
+  flex: 1;
+  overflow: auto;
+  background:
+    linear-gradient(rgb(255 255 255 / 82%), rgb(255 255 255 / 82%)),
+    radial-gradient(circle, #c9d8e7 1px, transparent 1px);
+  background-color: #f4f7fa;
+  background-size: auto, 18px 18px;
+}
+
+.editor-canvas.is-embedded {
+  overflow: hidden;
+  background: #fff;
+}
+
+.embedded-jupyter {
+  display: flex;
+  width: 100%;
+  height: 100%;
+  min-height: 0;
+  flex-direction: column;
+  background: #fff;
+}
+
+.embedded-jupyter__status {
+  display: flex;
+  min-height: 34px;
+  align-items: center;
+  gap: 18px;
+  padding: 0 14px;
+  border-bottom: 1px solid #dfe6ec;
+  color: #718195;
+  background: #f8fafc;
+  font-size: 9px;
+}
+
+.embedded-jupyter__status > span {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.embedded-jupyter__status > span:first-child {
+  color: #197b59;
+  font-weight: 650;
+}
+
+.embedded-jupyter__status i {
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+  background: #20b77d;
+  box-shadow: 0 0 0 3px rgb(32 183 125 / 12%);
+}
+
+.embedded-jupyter__status code {
+  margin-left: auto;
+  color: #72859a;
+  font-size: 9px;
+}
+
+.embedded-jupyter iframe {
+  width: 100%;
+  min-height: 0;
+  flex: 1;
+  border: 0;
+  background: #fff;
+}
+
+.editor-opening-state {
+  display: flex;
+  width: min(520px, calc(100% - 48px));
+  min-height: 260px;
+  align-items: center;
+  justify-content: center;
+  flex-direction: column;
+  margin: 64px auto;
+  padding: 36px;
+  border: 1px solid #dce5ed;
+  border-radius: 10px;
+  color: #66788d;
+  background: rgb(255 255 255 / 94%);
+  box-shadow: 0 12px 34px rgb(31 64 98 / 7%);
+  text-align: center;
+}
+
+.editor-opening-state__icon {
+  display: grid;
+  width: 54px;
+  height: 54px;
+  place-items: center;
+  margin-bottom: 16px;
+  border-radius: 50%;
+  color: #247bc5;
+  background: #edf6ff;
+}
+
+.editor-opening-state__icon .button-spinner {
+  width: 24px;
+  height: 24px;
+  border-width: 3px;
+}
+
+.editor-opening-state strong {
+  color: #1d344d;
+  font-size: 16px;
+}
+
+.editor-opening-state p {
+  max-width: 430px;
+  margin: 9px 0 0;
+  color: #7a8a9b;
+  font-size: 12px;
+  line-height: 1.7;
+  overflow-wrap: anywhere;
+}
+
+.editor-opening-state.has-error {
+  border-color: #f0cfcc;
+}
+
+.editor-opening-state.has-error .editor-opening-state__icon {
+  color: #c84f49;
+  background: #fff1f0;
+}
+
+.editor-opening-state .open-editor-button {
+  margin-top: 18px;
+}
+
+.script-overview {
+  width: min(1020px, calc(100% - 48px));
+  margin: 24px auto 38px;
+}
+
+.script-overview__header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 20px;
+  padding: 23px 26px;
+  border: 1px solid #dce5ed;
+  border-radius: 9px 9px 0 0;
+  background: #fff;
+}
+
+.section-kicker {
+  color: #2b7fca;
+  font-size: 9px;
+  font-weight: 800;
+  letter-spacing: .13em;
+}
+
+.script-overview__header h2 {
+  margin: 6px 0 4px;
+  color: #1b2d43;
+  font-size: 22px;
+}
+
+.script-overview__header p {
+  margin: 0;
+  color: #8997a6;
+  font-family: Consolas, "SFMono-Regular", monospace;
+  font-size: 10px;
+}
+
+.open-editor-button,
+.primary-button,
+.secondary-button {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 7px;
+  border-radius: 6px;
+  cursor: pointer;
+  font-weight: 650;
+}
+
+.open-editor-button {
+  height: 37px;
+  padding: 0 14px;
+  border: 1px solid #b9d4ef;
+  color: #176cc0;
+  background: #f4f9ff;
+  font-size: 11px;
+}
+
+.open-editor-button:hover {
+  border-color: #7eafe0;
+  background: #eaf4ff;
+}
+
+.open-editor-button.is-editing {
+  border-color: #69b79a;
+  color: #137a55;
+  background: #effaf5;
+}
+
+.button-spinner--blue {
+  border-color: rgb(34 121 199 / 22%);
+  border-top-color: #2279c7;
+}
+
+.metadata-grid {
+  display: grid;
+  grid-template-columns: repeat(4, 1fr);
+  border-right: 1px solid #dce5ed;
+  border-bottom: 1px solid #dce5ed;
+  border-left: 1px solid #dce5ed;
+  background: #f9fbfd;
+}
+
+.metadata-grid > div {
+  display: flex;
+  min-height: 64px;
+  justify-content: center;
+  flex-direction: column;
+  padding: 0 21px;
+  border-right: 1px solid #e4eaf0;
+}
+
+.metadata-grid > div:last-child {
+  border-right: 0;
+}
+
+.metadata-grid span {
+  color: #94a0ae;
+  font-size: 9px;
+}
+
+.metadata-grid strong {
+  margin-top: 4px;
+  color: #405368;
+  font-size: 12px;
+}
+
+.preview-card {
+  overflow: hidden;
+  margin-top: 15px;
+  border: 1px solid #d8e1e9;
+  border-radius: 9px;
+  background: #fff;
+  box-shadow: 0 8px 25px rgb(23 52 81 / 7%);
+}
+
+.preview-card__bar {
+  display: grid;
+  height: 39px;
+  align-items: center;
+  grid-template-columns: 1fr auto 1fr;
+  padding: 0 13px;
+  border-bottom: 1px solid #e4e9ee;
+  color: #66778a;
+  background: #f4f6f8;
+  font-size: 10px;
+}
+
+.preview-card__bar > div {
+  display: flex;
+  gap: 6px;
+}
+
+.preview-card__bar em {
+  justify-self: end;
+  color: #9aa6b3;
+  font-style: normal;
+}
+
+.window-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+}
+
+.window-dot--red { background: #ef6b62; }
+.window-dot--yellow { background: #e9b949; }
+.window-dot--green { background: #49b97b; }
+
+.notebook-menu {
+  display: flex;
+  height: 34px;
+  align-items: center;
+  gap: 19px;
+  padding: 0 19px;
+  border-bottom: 1px solid #edf0f3;
+  color: #29394c;
+  font-family: Arial, sans-serif;
+  font-size: 10px;
+}
+
+.notebook-tools {
+  display: flex;
+  height: 37px;
+  align-items: center;
+  gap: 5px;
+  padding: 0 17px;
+  border-bottom: 1px solid #e8ecf0;
+  color: #5d6c7b;
+  background: #fbfcfd;
+  font-size: 10px;
+}
+
+.notebook-tools button {
+  width: 24px;
+  height: 23px;
+  border: 1px solid #dfe5eb;
+  border-radius: 3px;
+  color: #677585;
+  background: #fff;
+}
+
+.notebook-tools span {
+  min-width: 100px;
+  margin-left: 7px;
+  padding: 5px 9px;
+  border: 1px solid #dfe5eb;
+  background: #fff;
+}
+
+.notebook-tools em {
+  margin-left: auto;
+  color: #728091;
+  font-style: normal;
+}
+
+.notebook-preview {
+  min-height: 300px;
+}
+
+.cell {
+  position: relative;
+  width: calc(100% - 65px);
+  margin: 23px 21px 13px 44px;
+  padding: 13px 17px;
+  border: 1px solid #d9e1e8;
+  border-left: 3px solid #2e83d3;
+  background: #f8fafc;
+}
+
+.cell--muted {
+  border-left-color: #9ab1c7;
+}
+
+.cell__prompt {
+  position: absolute;
+  left: -37px;
+  color: #4b79ab;
+  font-family: Consolas, monospace;
+  font-size: 10px;
+}
+
+.cell pre,
+.python-preview pre {
+  margin: 0;
+  color: #293b50;
+  font: 11px/1.75 Consolas, "SFMono-Regular", monospace;
+}
+
+.cell pre b,
+.python-preview b {
+  color: #9c35a5;
+}
+
+.cell pre i,
+.python-preview i {
+  color: #b35336;
+  font-style: normal;
+}
+
+.cell pre span {
+  color: #8392a1;
+}
+
+.python-preview {
+  display: flex;
+  min-height: 330px;
+  padding: 25px 0;
+  background: #fbfcfe;
+}
+
+.line-numbers {
+  width: 45px;
+  margin-right: 16px;
+  padding-right: 13px;
+  border-right: 1px solid #e4e9ee;
+  color: #abb5c0;
+  font: 11px/1.75 Consolas, monospace;
+  text-align: right;
+}
+
+.code-comment { color: #799469; }
+.code-function { color: #3269a8; }
+
+.integrity-row {
+  display: flex;
+  align-items: center;
+  gap: 24px;
+  margin-top: 12px;
+  padding: 0 3px;
+  color: #8795a4;
+  font-size: 10px;
+}
+
+.integrity-row span {
+  display: inline-flex;
+  align-items: center;
+  gap: 5px;
+}
+
+.integrity-row span:first-child {
+  color: #25875e;
+}
+
+.welcome-panel {
+  display: flex;
+  min-height: 100%;
+  align-items: center;
+  justify-content: center;
+  flex-direction: column;
+  padding: 35px;
+  background:
+    radial-gradient(circle at 50% 39%, rgb(74 150 225 / 9%), transparent 24%),
+    radial-gradient(circle, #d3dee8 1px, transparent 1px);
+  background-size: auto, 18px 18px;
+  text-align: center;
+}
+
+.welcome-panel__visual {
+  display: grid;
+  width: 86px;
+  height: 86px;
+  margin-bottom: 21px;
+  place-items: center;
+  border: 1px solid #cfe0f0;
+  border-radius: 25px;
+  color: #3d8cd9;
+  background: linear-gradient(145deg, #fff, #eaf4fd);
+  box-shadow: 0 16px 35px rgb(40 103 165 / 12%);
+}
+
+.welcome-panel__label {
+  color: #2e81ce;
+  font-size: 10px;
+  font-weight: 800;
+  letter-spacing: .12em;
+}
+
+.welcome-panel h2 {
+  margin: 9px 0 7px;
+  color: #21354c;
+  font-size: 23px;
+}
+
+.welcome-panel p {
+  width: min(430px, 100%);
+  margin: 0 0 22px;
+  color: #76879a;
+  font-size: 12px;
+  line-height: 1.8;
+}
+
+.primary-button {
+  min-height: 37px;
+  padding: 0 15px;
+  border: 1px solid #126ac3;
+  color: #fff;
+  background: linear-gradient(135deg, #1881e7, #1268c9);
+  box-shadow: 0 6px 15px rgb(20 111 202 / 18%);
+  font-size: 12px;
+}
+
+.primary-button:hover:not(:disabled) {
+  background: linear-gradient(135deg, #1175d8, #0e5bad);
+}
+
+.primary-button:disabled {
+  cursor: not-allowed;
+  opacity: .58;
+}
+
+.secondary-button {
+  min-height: 37px;
+  padding: 0 15px;
+  border: 1px solid #d8e1e9;
+  color: #56687c;
+  background: #fff;
+  font-size: 12px;
+}
+
+.modal-backdrop {
+  position: fixed;
+  z-index: 20;
+  display: grid;
+  inset: 0;
+  place-items: center;
+  background: rgb(10 27 45 / 43%);
+  backdrop-filter: blur(2px);
+}
+
+.modal {
+  width: min(520px, calc(100vw - 40px));
+  overflow: hidden;
+  border: 1px solid #dce4eb;
+  border-radius: 11px;
+  background: #fff;
+  box-shadow: 0 24px 70px rgb(8 27 48 / 25%);
+  animation: modal-in .18s ease-out;
+}
+
+.modal--compact {
+  width: min(430px, calc(100vw - 40px));
+}
+
+.modal__header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 20px 22px 16px;
+  border-bottom: 1px solid #e7ecf1;
+}
+
+.modal__eyebrow {
+  color: #2d82d4;
+  font-size: 9px;
+  font-weight: 800;
+  letter-spacing: .12em;
+}
+
+.modal__header h2 {
+  margin: 4px 0 0;
+  color: #1c2d42;
+  font-size: 19px;
+}
+
+.modal form {
+  padding: 19px 22px 0;
+}
+
+.destination-chip {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+  margin-bottom: 15px;
+  padding: 9px 10px;
+  border: 1px solid #dce7ef;
+  border-radius: 6px;
+  color: #587087;
+  background: #f7fafc;
+  font-size: 10px;
+}
+
+.destination-chip svg {
+  color: #dda321;
+  fill: #f7c84a;
+}
+
+.form-field {
+  display: flex;
+  margin-bottom: 17px;
+  flex-direction: column;
+  gap: 7px;
+  color: #3c4e62;
+  font-size: 12px;
+  font-weight: 650;
+}
+
+.form-field input,
+.form-field select,
+.form-field textarea {
+  width: 100%;
+  padding: 0 11px;
+  border: 1px solid #d6e0e9;
+  border-radius: 6px;
+  outline: 0;
+  color: #283a4e;
+  background: #fff;
+  font-size: 12px;
+}
+
+.form-field input,
+.form-field select {
+  height: 39px;
+}
+
+.form-field textarea {
+  min-height: 92px;
+  padding-top: 10px;
+  resize: vertical;
+  font-family: inherit;
+  line-height: 1.55;
+}
+
+.form-field input:focus,
+.form-field select:focus,
+.form-field textarea:focus {
+  border-color: #5b9ddb;
+  box-shadow: 0 0 0 3px rgb(38 125 207 / 8%);
+}
+
+.form-field small {
+  color: #98a5b3;
+  font-size: 9px;
+  font-weight: 400;
+}
+
+.publish-source {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 17px;
+  padding: 11px 12px;
+  border: 1px solid #dce6ef;
+  border-radius: 7px;
+  background: #f8fbfd;
+}
+
+.publish-source > span:last-child {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.publish-source strong {
+  overflow: hidden;
+  color: #34485d;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.publish-source small {
+  color: #8b99a8;
+  font-size: 9px;
+}
+
+.version-receipt {
+  width: min(470px, calc(100vw - 40px));
+  padding: 30px 28px 25px;
+  text-align: center;
+}
+
+.version-receipt__check {
+  display: grid;
+  width: 58px;
+  height: 58px;
+  margin: 0 auto 14px;
+  place-items: center;
+  border-radius: 50%;
+  color: #fff;
+  background: linear-gradient(145deg, #24b67d, #149566);
+  box-shadow: 0 9px 24px rgb(25 157 104 / 25%);
+}
+
+.version-receipt h2 {
+  margin: 5px 0 8px;
+  color: #24374a;
+  font-size: 20px;
+}
+
+.version-receipt > p {
+  max-width: 360px;
+  margin: 0 auto 20px;
+  color: #718093;
+  font-size: 11px;
+  line-height: 1.65;
+}
+
+.version-id-box {
+  display: grid;
+  grid-template-columns: auto minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 9px;
+  padding: 11px 12px;
+  border: 1px solid #dce6ee;
+  border-radius: 7px;
+  background: #f7fafc;
+  text-align: left;
+}
+
+.version-id-box span {
+  color: #8795a4;
+  font-size: 9px;
+}
+
+.version-id-box code {
+  overflow: hidden;
+  color: #275271;
+  font-size: 10px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.version-id-box button {
+  padding: 4px 8px;
+  border: 1px solid #bad3e8;
+  border-radius: 4px;
+  color: #2475b7;
+  background: #fff;
+  cursor: pointer;
+  font-size: 9px;
+}
+
+.version-receipt__close {
+  width: 100%;
+  height: 39px;
+  margin-top: 17px;
+  border: 0;
+  color: #fff;
+  background: #1976cf;
+}
+
+.type-picker {
+  display: grid;
+  margin: 0 0 17px;
+  padding: 0;
+  border: 0;
+  grid-template-columns: 1fr 1fr;
+  gap: 9px;
+}
+
+.type-picker legend {
+  margin-bottom: 7px;
+  color: #3c4e62;
+  font-size: 12px;
+  font-weight: 650;
+}
+
+.type-picker button {
+  position: relative;
+  display: flex;
+  min-height: 72px;
+  align-items: center;
+  gap: 9px;
+  padding: 10px;
+  border: 1px solid #dae2ea;
+  border-radius: 7px;
+  background: #fff;
+  cursor: pointer;
+  text-align: left;
+}
+
+.type-picker button:hover {
+  border-color: #a9c6e1;
+}
+
+.type-picker button.is-selected {
+  border-color: #4d98df;
+  background: #f4f9ff;
+  box-shadow: 0 0 0 2px rgb(49 133 216 / 7%);
+}
+
+.type-picker__icon {
+  display: grid;
+  width: 37px;
+  height: 37px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 8px;
+}
+
+.type-picker__icon--notebook {
+  color: #dd5a4c;
+  background: #fff0ed;
+}
+
+.type-picker__icon--python {
+  color: #2a75c5;
+  background: #e9f3ff;
+}
+
+.type-picker button > span:nth-child(2) {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+}
+
+.type-picker strong {
+  color: #34475b;
+  font-size: 11px;
+}
+
+.type-picker small {
+  margin-top: 3px;
+  color: #919eac;
+  font-size: 8px;
+  line-height: 1.35;
+}
+
+.type-picker__check {
+  position: absolute;
+  top: 6px;
+  right: 6px;
+  display: none;
+  width: 17px;
+  height: 17px;
+  place-items: center;
+  border-radius: 50%;
+  color: #fff;
+  background: #2e88dd;
+}
+
+.is-selected .type-picker__check {
+  display: grid;
+}
+
+.modal__footer {
+  display: flex;
+  justify-content: flex-end;
+  gap: 8px;
+  margin: 3px -22px 0;
+  padding: 14px 22px;
+  border-top: 1px solid #e8edf2;
+  background: #fafbfc;
+}
+
+.button-spinner {
+  width: 13px;
+  height: 13px;
+  border: 2px solid rgb(255 255 255 / 45%);
+  border-top-color: #fff;
+  border-radius: 50%;
+  animation: spin .7s linear infinite;
+}
+
+.button-spinner.button-spinner--blue {
+  border-color: rgb(34 121 199 / 22%);
+  border-top-color: #2279c7;
+}
+
+.toast {
+  position: fixed;
+  z-index: 30;
+  top: 82px;
+  right: 21px;
+  display: flex;
+  min-width: 260px;
+  max-width: 410px;
+  min-height: 46px;
+  align-items: center;
+  gap: 9px;
+  padding: 10px 14px;
+  border: 1px solid #cfdbe6;
+  border-radius: 8px;
+  color: #43566a;
+  background: #fff;
+  box-shadow: 0 12px 35px rgb(20 42 66 / 14%);
+  font-size: 12px;
+  animation: toast-in .2s ease-out;
+}
+
+.toast > span {
+  display: grid;
+  width: 27px;
+  height: 27px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 50%;
+}
+
+.toast--success > span {
+  color: #177b55;
+  background: #e6f7f0;
+}
+
+.toast--error > span {
+  color: #b94a4a;
+  background: #fff0f0;
+}
+
+.toast--info > span {
+  color: #2675bf;
+  background: #eaf4fd;
+}
+
+@keyframes spin {
+  to { transform: rotate(360deg); }
+}
+
+@keyframes shimmer {
+  to { background-position: -200% 0; }
+}
+
+@keyframes modal-in {
+  from { opacity: 0; transform: translateY(8px) scale(.985); }
+}
+
+@keyframes toast-in {
+  from { opacity: 0; transform: translateY(-7px); }
+}
+
+@keyframes lock-pulse {
+  50% { opacity: .5; transform: scale(.78); }
+}
+
+@media (max-width: 1280px) {
+  .sidebar {
+    width: 184px;
+    min-width: 184px;
+  }
+
+  .brand__name {
+    font-size: 13px;
+  }
+
+  .workspace-layout {
+    grid-template-columns: 285px minmax(0, 1fr);
+  }
+
+  .api-state {
+    display: none;
+  }
+
+  .workspace-switcher span:not(.workspace-switcher__icon) {
+    min-width: 130px;
+  }
+
+  .script-overview {
+    width: calc(100% - 30px);
+  }
+}
diff --git a/frontend/app/styles/schedule.css b/frontend/app/styles/schedule.css
new file mode 100644
index 0000000..ce245f3
--- /dev/null
+++ b/frontend/app/styles/schedule.css
@@ -0,0 +1,1176 @@
+.schedule-page {
+  position: relative;
+  display: flex;
+  min-height: 0;
+  flex: 1;
+  flex-direction: column;
+  gap: 10px;
+  padding: 10px;
+  overflow: hidden;
+}
+
+.schedule-toolbar {
+  display: flex;
+  min-height: 56px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 14px;
+  border: 1px solid #dce4ec;
+  border-radius: 7px;
+  background: #fff;
+  box-shadow: 0 2px 7px rgb(25 46 73 / 3%);
+}
+
+.schedule-toolbar > div:first-child {
+  display: flex;
+  align-items: baseline;
+  gap: 10px;
+}
+
+.schedule-toolbar strong {
+  color: #1c2d42;
+  font-size: 16px;
+}
+
+.schedule-toolbar > div:first-child span {
+  color: #8b99a9;
+  font-size: 11px;
+}
+
+.schedule-toolbar__actions {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.schedule-toolbar__actions button,
+.schedule-canvas-title button,
+.schedule-canvas-status button {
+  display: inline-flex;
+  min-height: 32px;
+  align-items: center;
+  justify-content: center;
+  gap: 5px;
+  padding: 0 12px;
+  border: 1px solid #dce5ee;
+  border-radius: 6px;
+  color: #526477;
+  background: #fff;
+  cursor: pointer;
+  font-size: 12px;
+  font-weight: 600;
+}
+
+.schedule-toolbar__actions button:hover:not(:disabled),
+.schedule-canvas-title button:hover,
+.schedule-canvas-status button:hover {
+  border-color: #aac6e5;
+  color: #126aca;
+  background: #f6faff;
+}
+
+.schedule-toolbar__actions button:disabled {
+  cursor: not-allowed;
+  opacity: .5;
+}
+
+.schedule-toolbar__actions .schedule-action--primary {
+  border-color: #126fd4;
+  color: #fff;
+  background: #126fd4;
+}
+
+.schedule-toolbar__actions .schedule-action--primary:hover:not(:disabled) {
+  border-color: #0e5fb9;
+  color: #fff;
+  background: #0e5fb9;
+}
+
+.schedule-toolbar__actions .schedule-action--danger {
+  border-color: #f1cccc;
+  color: #c14c4c;
+}
+
+.schedule-toolbar__actions .schedule-action--run {
+  border-color: #159466;
+  color: #fff;
+  background: #159466;
+}
+
+.schedule-toolbar__actions .schedule-action--run:hover:not(:disabled) {
+  border-color: #0f7d55;
+  color: #fff;
+  background: #0f7d55;
+}
+
+.schedule-workbench {
+  display: grid;
+  min-height: 0;
+  flex: 1;
+  grid-template-columns: 278px minmax(420px, 1fr) 316px;
+  gap: 10px;
+}
+
+.schedule-left,
+.schedule-center,
+.schedule-right {
+  min-height: 0;
+  border: 1px solid #dce4ec;
+  border-radius: 7px;
+  background: #fff;
+  box-shadow: 0 2px 7px rgb(25 46 73 / 3%);
+}
+
+.schedule-left {
+  display: grid;
+  overflow: hidden;
+  grid-template-rows: minmax(210px, 42%) minmax(260px, 58%);
+}
+
+.schedule-panel {
+  display: flex;
+  min-height: 0;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.schedule-list-panel {
+  border-bottom: 1px solid #e3e9ef;
+}
+
+.schedule-panel__title {
+  display: flex;
+  min-height: 48px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 12px;
+}
+
+.schedule-panel__title > div {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+}
+
+.schedule-panel__title strong {
+  color: #223247;
+  font-size: 14px;
+}
+
+.schedule-panel__title span {
+  display: inline-grid;
+  min-width: 20px;
+  height: 20px;
+  place-items: center;
+  padding: 0 5px;
+  border-radius: 10px;
+  color: #718195;
+  background: #eef3f8;
+  font-size: 10px;
+}
+
+.schedule-search {
+  display: flex;
+  min-height: 35px;
+  align-items: center;
+  gap: 7px;
+  margin: 0 10px 7px;
+  padding: 0 9px;
+  border: 1px solid #dce5ed;
+  border-radius: 6px;
+  color: #95a3b2;
+  background: #fff;
+}
+
+.schedule-search:focus-within {
+  border-color: #8db9e8;
+  box-shadow: 0 0 0 3px rgb(38 124 216 / 8%);
+}
+
+.schedule-search input {
+  min-width: 0;
+  flex: 1;
+  border: 0;
+  outline: 0;
+  color: #33475d;
+  background: transparent;
+  font-size: 12px;
+}
+
+.schedule-search input::placeholder {
+  color: #a6b2be;
+}
+
+.schedule-list,
+.artifact-list {
+  min-height: 0;
+  padding: 0 8px 9px;
+  overflow: auto;
+}
+
+.schedule-card {
+  position: relative;
+  display: flex;
+  width: 100%;
+  min-height: 62px;
+  align-items: center;
+  gap: 9px;
+  margin-bottom: 6px;
+  padding: 8px 10px;
+  border: 1px solid #e1e8ef;
+  border-radius: 6px;
+  color: #526276;
+  background: #fff;
+  cursor: pointer;
+  text-align: left;
+}
+
+.schedule-card:hover {
+  border-color: #b9cfe7;
+  background: #f8fbff;
+}
+
+.schedule-card--active {
+  border-color: #89b8ec;
+  color: #1c64b1;
+  background: #edf6ff;
+  box-shadow: inset 3px 0 #247fdc;
+}
+
+.schedule-card > span:last-child {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.schedule-card strong {
+  max-width: 205px;
+  overflow: hidden;
+  color: #283b50;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-card small {
+  color: #8d9aab;
+  font-size: 10px;
+}
+
+.schedule-status {
+  width: 8px;
+  height: 8px;
+  flex: 0 0 auto;
+  border-radius: 50%;
+  background: #aeb9c5;
+  box-shadow: 0 0 0 3px rgb(142 156 171 / 11%);
+}
+
+.schedule-status.is-enabled {
+  background: #18b979;
+  box-shadow: 0 0 0 3px rgb(24 185 121 / 12%);
+}
+
+.artifact-tip {
+  margin: 0 11px 8px;
+  padding: 7px 8px;
+  border-radius: 5px;
+  color: #6f8297;
+  background: #f3f7fb;
+  font-size: 10px;
+  line-height: 1.45;
+}
+
+.artifact-card {
+  display: flex;
+  min-height: 58px;
+  align-items: center;
+  gap: 9px;
+  margin-bottom: 6px;
+  padding: 8px 9px;
+  border: 1px solid #e2e9f0;
+  border-radius: 6px;
+  background: #fff;
+  cursor: grab;
+  user-select: none;
+}
+
+.artifact-card:hover {
+  border-color: #98bee7;
+  box-shadow: 0 3px 10px rgb(40 96 155 / 8%);
+  transform: translateY(-1px);
+}
+
+.artifact-card:active {
+  cursor: grabbing;
+}
+
+.artifact-card__icon {
+  display: grid;
+  width: 31px;
+  height: 31px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 6px;
+}
+
+.artifact-card__icon--notebook {
+  color: #e05e53;
+  background: #fff0ee;
+}
+
+.artifact-card__icon--python {
+  color: #326fc1;
+  background: #eaf3ff;
+}
+
+.artifact-card > span:last-child {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.artifact-card strong {
+  max-width: 190px;
+  overflow: hidden;
+  color: #2f4257;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.artifact-card small {
+  color: #8e9bab;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 9px;
+}
+
+.schedule-empty {
+  margin: 18px 10px;
+  color: #95a2b0;
+  font-size: 11px;
+  line-height: 1.6;
+  text-align: center;
+}
+
+.schedule-center {
+  display: flex;
+  overflow: hidden;
+  flex-direction: column;
+}
+
+.schedule-canvas-title {
+  display: flex;
+  min-height: 53px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 12px;
+  border-bottom: 1px solid #e4eaf0;
+}
+
+.schedule-canvas-title > div {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 3px;
+}
+
+.schedule-canvas-title strong {
+  color: #27394d;
+  font-size: 14px;
+}
+
+.schedule-canvas-title span {
+  overflow: hidden;
+  color: #93a0ae;
+  font-size: 10px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-canvas-title button {
+  min-height: 28px;
+  color: #b25a4f;
+}
+
+.schedule-canvas {
+  position: relative;
+  min-height: 0;
+  flex: 1;
+  overflow: auto;
+  background-color: #f9fbfd;
+  background-image:
+    linear-gradient(#e7edf3 1px, transparent 1px),
+    linear-gradient(90deg, #e7edf3 1px, transparent 1px),
+    linear-gradient(#f1f4f7 1px, transparent 1px),
+    linear-gradient(90deg, #f1f4f7 1px, transparent 1px);
+  background-position: -1px -1px;
+  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px;
+}
+
+.schedule-canvas.is-linking {
+  cursor: crosshair;
+}
+
+.schedule-canvas__surface {
+  position: relative;
+}
+
+.schedule-edges {
+  position: absolute;
+  z-index: 1;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+  overflow: visible;
+}
+
+.schedule-edge-line {
+  fill: none;
+  stroke: #4e92db;
+  stroke-width: 2.2;
+  transition: stroke .15s, stroke-width .15s;
+}
+
+.schedule-edge-hit {
+  fill: none;
+  stroke: transparent;
+  stroke-width: 14;
+  cursor: pointer;
+  pointer-events: stroke;
+}
+
+.schedule-edges g.is-selected .schedule-edge-line {
+  stroke: #df8142;
+  stroke-width: 3.4;
+}
+
+.schedule-node {
+  position: absolute;
+  z-index: 2;
+  display: flex;
+  flex-direction: column;
+  padding: 11px 12px 9px;
+  border: 1px solid #91b7de;
+  border-radius: 8px;
+  color: #34516f;
+  background: #fff;
+  box-shadow: 0 7px 18px rgb(36 75 117 / 11%);
+  cursor: grab;
+  touch-action: none;
+  user-select: none;
+}
+
+.schedule-context-menu {
+  position: fixed;
+  z-index: 60;
+  min-width: 168px;
+  padding: 5px;
+  border: 1px solid #d9e3ec;
+  border-radius: 8px;
+  background: #fff;
+  box-shadow: 0 14px 36px rgb(14 35 57 / 22%);
+}
+
+.schedule-context-menu button {
+  display: flex;
+  width: 100%;
+  align-items: center;
+  gap: 9px;
+  padding: 9px 10px;
+  border: 0;
+  border-radius: 5px;
+  color: #c23b3b;
+  background: transparent;
+  font: inherit;
+  font-size: 12px;
+  text-align: left;
+  cursor: pointer;
+}
+
+.schedule-context-menu button:hover {
+  background: #fff0f0;
+}
+
+.schedule-context-menu button.schedule-context-menu__action {
+  color: #173a5e;
+}
+
+.schedule-context-menu button.schedule-context-menu__action:hover {
+  background: #eef6ff;
+}
+
+.schedule-node:active {
+  cursor: grabbing;
+}
+
+.schedule-node.is-selected {
+  border-color: #1978d4;
+  box-shadow:
+    0 0 0 3px rgb(25 120 212 / 11%),
+    0 8px 22px rgb(36 75 117 / 13%);
+}
+
+.schedule-node__heading {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+}
+
+.schedule-node__heading strong {
+  min-width: 0;
+  flex: 1;
+  overflow: hidden;
+  color: #243b53;
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-node__heading > button {
+  display: grid;
+  width: 23px;
+  height: 23px;
+  place-items: center;
+  padding: 0;
+  border: 0;
+  border-radius: 4px;
+  color: #8b99a7;
+  background: transparent;
+  cursor: pointer;
+}
+
+.schedule-node__heading > button:hover {
+  color: #1978d4;
+  background: #edf5fd;
+}
+
+.schedule-node__type {
+  display: grid;
+  width: 25px;
+  height: 25px;
+  flex: 0 0 auto;
+  place-items: center;
+  border-radius: 5px;
+}
+
+.schedule-node__type--notebook {
+  color: #da5c52;
+  background: #fff0ef;
+}
+
+.schedule-node__type--python {
+  color: #316fbf;
+  background: #eaf3ff;
+}
+
+.schedule-node > p {
+  margin: 8px 0 6px;
+  overflow: hidden;
+  color: #7e8d9d;
+  font-size: 10px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-node footer {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding-top: 6px;
+  border-top: 1px solid #edf1f5;
+}
+
+.schedule-node footer span {
+  max-width: 145px;
+  overflow: hidden;
+  color: #8d9baa;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 9px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-node footer b {
+  color: #1978d4;
+  font-size: 10px;
+}
+
+.schedule-node__port {
+  position: absolute;
+  z-index: 4;
+  top: calc(50% - 7px);
+  width: 14px;
+  height: 14px;
+  padding: 0;
+  border: 2px solid #4e92db;
+  border-radius: 50%;
+  background: #fff;
+  cursor: crosshair;
+}
+
+.schedule-node__port:hover,
+.schedule-node__port.is-active {
+  border-color: #176ec5;
+  background: #4e92db;
+  box-shadow: 0 0 0 4px rgb(45 124 207 / 16%);
+}
+
+.schedule-node__port--in {
+  left: -8px;
+}
+
+.schedule-node__port--out {
+  right: -8px;
+}
+
+.schedule-canvas-empty {
+  position: sticky;
+  z-index: 0;
+  left: 50%;
+  top: 46%;
+  display: flex;
+  width: 350px;
+  margin: 190px auto 0;
+  flex-direction: column;
+  align-items: center;
+  color: #9aa8b6;
+  text-align: center;
+}
+
+.schedule-canvas-empty > svg {
+  margin-bottom: 12px;
+  color: #8cb4de;
+}
+
+.schedule-canvas-empty strong {
+  color: #567089;
+  font-size: 14px;
+}
+
+.schedule-canvas-empty p {
+  margin: 7px 0 13px;
+  font-size: 11px;
+}
+
+.schedule-canvas-empty button {
+  display: inline-flex;
+  min-height: 32px;
+  align-items: center;
+  gap: 4px;
+  padding: 0 12px;
+  border: 1px solid #2580da;
+  border-radius: 6px;
+  color: #fff;
+  background: #2580da;
+  cursor: pointer;
+  font-size: 11px;
+}
+
+.schedule-canvas-status {
+  display: flex;
+  min-height: 35px;
+  align-items: center;
+  gap: 14px;
+  padding: 0 12px;
+  border-top: 1px solid #e4eaf0;
+  color: #8b99a9;
+  background: #fff;
+  font-size: 10px;
+}
+
+.schedule-canvas-status span:first-child {
+  color: #b17a48;
+}
+
+.schedule-canvas-status span.is-valid {
+  color: #16875b;
+}
+
+.schedule-canvas-status button {
+  min-height: 24px;
+  margin-left: auto;
+  padding: 0 8px;
+  color: #bd504b;
+  font-size: 10px;
+}
+
+.schedule-right {
+  display: grid;
+  overflow: hidden;
+  grid-template-rows: minmax(0, 1fr) 236px;
+}
+
+.schedule-inspector-scroll {
+  min-height: 0;
+  overflow: auto;
+}
+
+.schedule-inspector {
+  display: flex;
+  min-height: 100%;
+  flex-direction: column;
+}
+
+.schedule-inspector > section {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  padding: 14px;
+  border-bottom: 1px solid #e7ecf1;
+}
+
+.schedule-inspector h3 {
+  margin: 0 0 2px;
+  color: #273b50;
+  font-size: 13px;
+}
+
+.schedule-inspector label {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+}
+
+.schedule-inspector label > span {
+  color: #758497;
+  font-size: 10px;
+  font-weight: 600;
+}
+
+.schedule-inspector input:not([type="checkbox"]),
+.schedule-inspector select,
+.schedule-inspector textarea {
+  width: 100%;
+  border: 1px solid #dce4ec;
+  border-radius: 5px;
+  outline: 0;
+  color: #32475d;
+  background: #fff;
+  font-size: 11px;
+}
+
+.schedule-inspector input:not([type="checkbox"]),
+.schedule-inspector select {
+  height: 33px;
+  padding: 0 8px;
+}
+
+.schedule-inspector textarea {
+  padding: 7px 8px;
+  line-height: 1.5;
+  resize: vertical;
+}
+
+.schedule-inspector input:focus,
+.schedule-inspector select:focus,
+.schedule-inspector textarea:focus {
+  border-color: #81b2e7;
+  box-shadow: 0 0 0 3px rgb(38 124 216 / 8%);
+}
+
+.schedule-switch-row {
+  flex-direction: row !important;
+  align-items: center;
+  justify-content: space-between;
+  padding: 8px 9px;
+  border-radius: 6px;
+  background: #f5f8fb;
+}
+
+.schedule-switch-row > span {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.schedule-switch-row b {
+  color: #45596f;
+  font-size: 11px;
+}
+
+.schedule-switch-row small {
+  color: #94a1ae;
+  font-size: 9px;
+  font-weight: 400;
+}
+
+.schedule-switch-row input {
+  width: 34px;
+  height: 18px;
+  accent-color: #1978d4;
+}
+
+.inspector-grid {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 8px;
+}
+
+.inspector-secondary-button,
+.inspector-primary-button,
+.inspector-danger-button {
+  display: flex;
+  min-height: 34px;
+  align-items: center;
+  justify-content: center;
+  border-radius: 6px;
+  cursor: pointer;
+  font-size: 11px;
+  font-weight: 650;
+}
+
+.inspector-secondary-button {
+  border: 1px solid #bcd2e9;
+  color: #2871bb;
+  background: #f7fbff;
+}
+
+.inspector-primary-button {
+  margin: 14px;
+  border: 1px solid #1978d4;
+  color: #fff;
+  background: #1978d4;
+}
+
+.inspector-danger-button {
+  border: 1px solid #efc6c6;
+  color: #bd4f4f;
+  background: #fff7f7;
+}
+
+.inspector-primary-button:disabled,
+.inspector-secondary-button:disabled,
+.inspector-danger-button:disabled {
+  cursor: not-allowed;
+  opacity: .55;
+}
+
+.cron-preview-list {
+  margin: 0;
+  padding: 8px 8px 8px 28px;
+  border-radius: 5px;
+  color: #5d7186;
+  background: #f5f8fb;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 9px;
+  line-height: 1.7;
+}
+
+.schedule-next-run {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 8px 9px;
+  border-radius: 5px;
+  color: #8b99a8;
+  background: #f5f8fb;
+  font-size: 10px;
+}
+
+.schedule-next-run strong {
+  color: #425970;
+  font-size: 10px;
+}
+
+.schedule-inspector-empty {
+  display: flex;
+  min-height: 100%;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  padding: 30px;
+  color: #9aa8b6;
+  text-align: center;
+}
+
+.schedule-inspector-empty svg {
+  margin-bottom: 10px;
+  color: #93b4d6;
+}
+
+.schedule-inspector-empty strong {
+  color: #516a82;
+  font-size: 14px;
+}
+
+.schedule-inspector-empty p {
+  font-size: 11px;
+  line-height: 1.6;
+}
+
+.schedule-run-history {
+  display: flex;
+  min-height: 0;
+  flex-direction: column;
+  border-top: 1px solid #e0e7ee;
+  background: #fbfcfe;
+}
+
+.schedule-run-history > header {
+  display: flex;
+  min-height: 44px;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 12px;
+  border-bottom: 1px solid #e8edf2;
+  background: #fff;
+}
+
+.schedule-run-history > header > div {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+}
+
+.schedule-run-history > header strong {
+  color: #2b4056;
+  font-size: 12px;
+}
+
+.schedule-run-history > header span {
+  display: inline-grid;
+  min-width: 18px;
+  height: 18px;
+  place-items: center;
+  border-radius: 9px;
+  color: #71849a;
+  background: #edf2f7;
+  font-size: 9px;
+}
+
+.schedule-run-history > header button {
+  display: grid;
+  width: 27px;
+  height: 27px;
+  place-items: center;
+  border: 1px solid #dce5ee;
+  border-radius: 5px;
+  color: #66809a;
+  background: #fff;
+  cursor: pointer;
+}
+
+.schedule-run-history > header button:disabled {
+  cursor: not-allowed;
+  opacity: .45;
+}
+
+.schedule-run-list {
+  display: flex;
+  min-height: 0;
+  flex: 1;
+  flex-direction: column;
+  gap: 7px;
+  padding: 9px;
+  overflow: auto;
+}
+
+.schedule-run-list > p {
+  margin: auto;
+  padding: 12px;
+  color: #929fac;
+  font-size: 10px;
+  line-height: 1.6;
+  text-align: center;
+}
+
+.schedule-run-card {
+  display: grid;
+  align-items: start;
+  gap: 7px;
+  padding: 8px;
+  border: 1px solid #e1e8ef;
+  border-radius: 6px;
+  background: #fff;
+  grid-template-columns: 8px minmax(0, 1fr) auto;
+}
+
+.schedule-run-card > div {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.schedule-run-card strong {
+  color: #425970;
+  font-size: 10px;
+}
+
+.schedule-run-card small {
+  color: #8b99a8;
+  font-size: 8px;
+}
+
+.schedule-run-card p {
+  margin: 2px 0 0;
+  overflow: hidden;
+  color: #b65353;
+  font-size: 8px;
+  line-height: 1.4;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.schedule-run-card code {
+  color: #8b9bad;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 8px;
+}
+
+.run-status-dot {
+  width: 7px;
+  height: 7px;
+  margin-top: 3px;
+  border-radius: 50%;
+  background: #9aa8b6;
+}
+
+.run-status-dot.is-queued {
+  background: #e6a33c;
+}
+
+.run-status-dot.is-running {
+  background: #2788dc;
+  box-shadow: 0 0 0 3px rgb(39 136 220 / 12%);
+}
+
+.run-status-dot.is-succeeded {
+  background: #25a46f;
+}
+
+.run-status-dot.is-failed,
+.run-status-dot.is-cancelled,
+.run-status-dot.is-timed_out {
+  background: #d75b5b;
+}
+
+.node-inspector-title {
+  flex-direction: row !important;
+  align-items: center;
+}
+
+.node-inspector-title > div {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 3px;
+}
+
+.node-inspector-title small {
+  color: #96a2af;
+  font-size: 9px;
+}
+
+.node-inspector-title strong {
+  overflow: hidden;
+  color: #30465d;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 11px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.version-readonly {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+  padding: 9px;
+  border: 1px solid #dae6f2;
+  border-radius: 6px;
+  background: #f6faff;
+}
+
+.version-readonly strong {
+  color: #35516e;
+  font-size: 11px;
+}
+
+.version-readonly span {
+  width: fit-content;
+  padding: 2px 6px;
+  border-radius: 8px;
+  color: #176ec5;
+  background: #e3f0fd;
+  font-size: 9px;
+  font-weight: 700;
+}
+
+.version-readonly small {
+  overflow: hidden;
+  color: #8190a0;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 8px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.json-editor {
+  color: #37516a !important;
+  background: #f8fafc !important;
+  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
+  font-size: 10px !important;
+}
+
+.node-inspector-actions {
+  display: grid;
+  grid-template-columns: 1fr 90px;
+  gap: 7px;
+  margin-top: auto;
+  padding: 14px;
+}
+
+.node-inspector-actions .inspector-primary-button {
+  margin: 0;
+}
+
+.schedule-busy {
+  position: absolute;
+  z-index: 20;
+  right: 22px;
+  bottom: 22px;
+  display: flex;
+  min-height: 38px;
+  align-items: center;
+  gap: 8px;
+  padding: 0 13px;
+  border: 1px solid #c9dcee;
+  border-radius: 7px;
+  color: #4e657d;
+  background: #fff;
+  box-shadow: 0 8px 25px rgb(28 56 86 / 15%);
+  font-size: 11px;
+}
+
+.schedule-busy span {
+  width: 15px;
+  height: 15px;
+  border: 2px solid #b9d4ef;
+  border-top-color: #1978d4;
+  border-radius: 50%;
+  animation: spin .7s linear infinite;
+}
+
+@media (max-width: 1500px) {
+  .schedule-workbench {
+    grid-template-columns: 250px minmax(380px, 1fr) 292px;
+  }
+
+  .schedule-toolbar > div:first-child span,
+  .schedule-canvas-title span {
+    display: none;
+  }
+}
+
+@media (max-width: 1280px) {
+  .schedule-workbench {
+    grid-template-columns: 225px minmax(360px, 1fr) 270px;
+  }
+
+  .schedule-toolbar__actions button {
+    padding: 0 8px;
+  }
+}
diff --git a/frontend/package.json b/frontend/package.json
new file mode 100644
index 0000000..83ef744
--- /dev/null
+++ b/frontend/package.json
@@ -0,0 +1,30 @@
+{
+  "name": "frontend",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build": "react-router build",
+    "dev": "react-router dev",
+    "start": "react-router-serve ./build/server/index.js",
+    "typecheck": "react-router typegen && tsc"
+  },
+  "dependencies": {
+    "@react-router/node": "^8",
+    "@react-router/serve": "^8",
+    "isbot": "^5.1.36",
+    "react": "^19.2.7",
+    "react-dom": "^19.2.7",
+    "react-router": "^8"
+  },
+  "devDependencies": {
+    "@react-router/dev": "^8",
+    "@tailwindcss/vite": "^4.2.2",
+    "@types/node": "^22",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "tailwindcss": "^4.2.2",
+    "typescript": "^5.9.3",
+    "vite": "^8.0.3"
+  },
+  "packageManager": "pnpm@10.15.1"
+}
diff --git a/frontend/pnpm-lock.yaml b/frontend/pnpm-lock.yaml
new file mode 100644
index 0000000..c70aa89
--- /dev/null
+++ b/frontend/pnpm-lock.yaml
@@ -0,0 +1,2327 @@
+lockfileVersion: '9.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+importers:
+
+  .:
+    dependencies:
+      '@react-router/node':
+        specifier: ^8
+        version: 8.3.0(react-router@8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8))(typescript@5.9.3)
+      '@react-router/serve':
+        specifier: ^8
+        version: 8.3.0(react-router@8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8))(typescript@5.9.3)
+      isbot:
+        specifier: ^5.1.36
+        version: 5.2.1
+      react:
+        specifier: ^19.2.7
+        version: 19.2.8
+      react-dom:
+        specifier: ^19.2.7
+        version: 19.2.8(react@19.2.8)
+      react-router:
+        specifier: ^8
+        version: 8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8)
+    devDependencies:
+      '@react-router/dev':
+        specifier: ^8
+        version: 8.3.0(@react-router/serve@8.3.0(react-router@8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8))(typescript@5.9.3))(react-router@8.3.0(react-dom@19.2.8(react@19.2.8))(react@19.2.8))(typescript@5.9.3)(vite@8.1.5(@types/node@22.20.1)(jiti@2.7.0))
+      '@tailwindcss/vite':
+        specifier: ^4.2.2
+        version: 4.3.3(vite@8.1.5(@types/node@22.20.1)(jiti@2.7.0))
+      '@types/node':
+        specifier: ^22
+        version: 22.20.1
+      '@types/react':
+        specifier: ^19.2.14
+        version: 19.2.17
+      '@types/react-dom':
+        specifier: ^19.2.3
+        version: 19.2.3(@types/react@19.2.17)
+      tailwindcss:
+        specifier: ^4.2.2
+        version: 4.3.3
+      typescript:
+        specifier: ^5.9.3
+        version: 5.9.3
+      vite:
+        specifier: ^8.0.3
+        version: 8.1.5(@types/node@22.20.1)(jiti@2.7.0)
+
+packages:
+
+  '@babel/code-frame@7.29.7':
+    resolution: {integrity: sha512-Aup7aUOfpbAUg2ROOJN6Iw5f9DMBlzu0mIkm/malLQFN/YQgO48wCj0Kxa3sEHJvPVFg7siR+qRInwXd2qhQKw==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/compat-data@7.29.7':
+    resolution: {integrity: sha512-locTkQyKvwIEgBzVrn8693ebc97F2U8ZHjbXwDXJ5Fn2TCpNwTlKcaKLkdHop5c/icOFE7qt7Q9JC5hnKNa6Gg==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/core@7.29.7':
+    resolution: {integrity: sha512-RgHBCvtjbOK2gXSNBNIkNoEc9qoVEtau3hj8gEqKQuL3HZAibKarWFEI3Lfm6EYKkLalOh8eSrj9b+ch9H/VBA==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/generator@7.29.7':
+    resolution: {integrity: sha512-DkXD5OJQaAQIdZ1bt3UZdEnHAn9Imd3IVBdX03UFe+ony9Ojw5pzr9YVKGDY1jt+Gcn/FnGkNf8r+Vj5NOJWtQ==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-annotate-as-pure@7.29.7':
+    resolution: {integrity: sha512-OoK6239jHPuSQOoS0kfTVKn0b/rVTk0seKq4Gd2UMLtmOVLjDC0ki3e+c90Trqv2gMfvJFqkiljrr568+qddiw==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-compilation-targets@7.29.7':
+    resolution: {integrity: sha512-wem6WaBj4NaVYVdNhLPPVacES6ZJ+KBBfSkTMD3YZxbP3rm3Di85tJU5ljaUNhaOynt+Aj0xruhYuzQBt8n71g==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-create-class-features-plugin@7.29.7':
+    resolution: {integrity: sha512-IY3ZD9Tmooqr3TUhc3DUWxiuo8xx1DWLhd5M7hQ+ZWJamqM2BbalrBJb2MisSLoYorOj75U03qULCxQTY9r3hg==}
+    engines: {node: '>=6.9.0'}
+    peerDependencies:
+      '@babel/core': ^7.0.0
+
+  '@babel/helper-globals@7.29.7':
+    resolution: {integrity: sha512-3nQVUAtvkKH9zahfWgw96Jc/uFOmjACE1kQz82E2lqWmHBgjzbNlsC22nuQTfahmWeQtTq5nQ/4Nnd2A1wj4zA==}
+    engines: {node: '>=6.9.0'}
+
+  '@babel/helper-member-expression-to-functions@7.29.7':
+    resolution: {integrity: sha512-j+7JYmk1JYDtACIGj0QJqqWZjoUpMoEikQGADMaHgCMCSDqd2+P32rfcibUNrGOMWrlzK1WJBdxrB3JJQZwWtg==}
+    engines: {node: '>=6.9.0'}
+
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+  readdirp@5.0.0: {}
+
+  rolldown@1.1.5:
+    dependencies:
+      '@oxc-project/types': 0.139.0
+      '@rolldown/pluginutils': 1.0.1
+    optionalDependencies:
+      '@rolldown/binding-android-arm64': 1.1.5
+      '@rolldown/binding-darwin-arm64': 1.1.5
+      '@rolldown/binding-darwin-x64': 1.1.5
+      '@rolldown/binding-freebsd-x64': 1.1.5
+      '@rolldown/binding-linux-arm-gnueabihf': 1.1.5
+      '@rolldown/binding-linux-arm64-gnu': 1.1.5
+      '@rolldown/binding-linux-arm64-musl': 1.1.5
+      '@rolldown/binding-linux-ppc64-gnu': 1.1.5
+      '@rolldown/binding-linux-s390x-gnu': 1.1.5
+      '@rolldown/binding-linux-x64-gnu': 1.1.5
+      '@rolldown/binding-linux-x64-musl': 1.1.5
+      '@rolldown/binding-openharmony-arm64': 1.1.5
+      '@rolldown/binding-wasm32-wasi': 1.1.5
+      '@rolldown/binding-win32-arm64-msvc': 1.1.5
+      '@rolldown/binding-win32-x64-msvc': 1.1.5
+
+  router@2.2.0:
+    dependencies:
+      debug: 4.4.3
+      depd: 2.0.0
+      is-promise: 4.0.0
+      parseurl: 1.3.3
+      path-to-regexp: 8.4.2
+    transitivePeerDependencies:
+      - supports-color
+
+  safe-buffer@5.1.2: {}
+
+  safe-buffer@5.2.1: {}
+
+  safer-buffer@2.1.2: {}
+
+  scheduler@0.27.0: {}
+
+  semver@6.3.1: {}
+
+  semver@7.8.5: {}
+
+  send@1.2.1:
+    dependencies:
+      debug: 4.4.3
+      encodeurl: 2.0.0
+      escape-html: 1.0.3
+      etag: 1.8.1
+      fresh: 2.0.0
+      http-errors: 2.0.1
+      mime-types: 3.0.2
+      ms: 2.1.3
+      on-finished: 2.4.1
+      range-parser: 1.3.0
+      statuses: 2.0.2
+    transitivePeerDependencies:
+      - supports-color
+
+  serve-static@2.2.1:
+    dependencies:
+      encodeurl: 2.0.0
+      escape-html: 1.0.3
+      parseurl: 1.3.3
+      send: 1.2.1
+    transitivePeerDependencies:
+      - supports-color
+
+  setprototypeof@1.2.0: {}
+
+  side-channel-list@1.0.1:
+    dependencies:
+      es-errors: 1.3.0
+      object-inspect: 1.13.4
+
+  side-channel-map@1.0.1:
+    dependencies:
+      call-bound: 1.0.4
+      es-errors: 1.3.0
+      get-intrinsic: 1.3.0
+      object-inspect: 1.13.4
+
+  side-channel-weakmap@1.0.2:
+    dependencies:
+      call-bound: 1.0.4
+      es-errors: 1.3.0
+      get-intrinsic: 1.3.0
+      object-inspect: 1.13.4
+      side-channel-map: 1.0.1
+
+  side-channel@1.1.1:
+    dependencies:
+      es-errors: 1.3.0
+      object-inspect: 1.13.4
+      side-channel-list: 1.0.1
+      side-channel-map: 1.0.1
+      side-channel-weakmap: 1.0.2
+
+  source-map-js@1.2.1: {}
+
+  source-map-support@0.5.21:
+    dependencies:
+      buffer-from: 1.1.2
+      source-map: 0.6.0
+
+  source-map@0.6.0: {}
+
+  statuses@2.0.2: {}
+
+  tailwindcss@4.3.3: {}
+
+  tapable@2.3.3: {}
+
+  tinyglobby@0.2.17:
+    dependencies:
+      fdir: 6.5.0(picomatch@4.0.5)
+      picomatch: 4.0.5
+
+  toidentifier@1.0.1: {}
+
+  tslib@2.8.1:
+    optional: true
+
+  type-is@2.1.0:
+    dependencies:
+      content-type: 2.0.0
+      media-typer: 1.1.1
+      mime-types: 3.0.2
+
+  typescript@5.9.3: {}
+
+  undici-types@6.21.0: {}
+
+  unpipe@1.0.0: {}
+
+  update-browserslist-db@1.2.3(browserslist@4.28.7):
+    dependencies:
+      browserslist: 4.28.7
+      escalade: 3.2.0
+      picocolors: 1.1.1
+
+  valibot@1.4.2(typescript@5.9.3):
+    optionalDependencies:
+      typescript: 5.9.3
+
+  vary@1.1.2: {}
+
+  vite@8.1.5(@types/node@22.20.1)(jiti@2.7.0):
+    dependencies:
+      lightningcss: 1.33.0
+      picomatch: 4.0.5
+      postcss: 8.5.24
+      rolldown: 1.1.5
+      tinyglobby: 0.2.17
+    optionalDependencies:
+      '@types/node': 22.20.1
+      fsevents: 2.3.3
+      jiti: 2.7.0
+
+  wrappy@1.0.2: {}
+
+  yallist@3.1.1: {}
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diff --git a/frontend/react-router.config.ts b/frontend/react-router.config.ts
new file mode 100644
index 0000000..b8b143a
--- /dev/null
+++ b/frontend/react-router.config.ts
@@ -0,0 +1,7 @@
+import type { Config } from "@react-router/dev/config";
+
+export default {
+  // Config options...
+  // Server-side render by default, to enable SPA mode set this to `false`
+  ssr: false,
+} satisfies Config;
diff --git a/frontend/tsconfig.json b/frontend/tsconfig.json
new file mode 100644
index 0000000..cbe49c7
--- /dev/null
+++ b/frontend/tsconfig.json
@@ -0,0 +1,26 @@
+{
+  "include": [
+    "**/*",
+    "**/.server/**/*",
+    "**/.client/**/*",
+    ".react-router/types/**/*"
+  ],
+  "compilerOptions": {
+    "lib": ["DOM", "DOM.Iterable", "ES2022"],
+    "types": ["node", "vite/client"],
+    "target": "ES2022",
+    "module": "ES2022",
+    "moduleResolution": "bundler",
+    "jsx": "react-jsx",
+    "rootDirs": [".", "./.react-router/types"],
+    "paths": {
+      "~/*": ["./app/*"]
+    },
+    "esModuleInterop": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+    "resolveJsonModule": true,
+    "skipLibCheck": true,
+    "strict": true
+  }
+}
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
new file mode 100644
index 0000000..cd65060
--- /dev/null
+++ b/frontend/vite.config.ts
@@ -0,0 +1,21 @@
+import { reactRouter } from "@react-router/dev/vite";
+import { defineConfig } from "vite";
+
+export default defineConfig({
+  plugins: [reactRouter()],
+  server: {
+    host: "0.0.0.0",
+    port: 5173,
+    proxy: {
+      "/api": {
+        target: process.env.VITE_GATEWAY_URL || "http://127.0.0.1:8081",
+        changeOrigin: true,
+      },
+      "/jupyter": {
+        target: process.env.VITE_GATEWAY_URL || "http://127.0.0.1:8081",
+        changeOrigin: true,
+        ws: true,
+      },
+    },
+  },
+});
diff --git a/http/runtime.http b/http/runtime.http
new file mode 100644
index 0000000..80ef5ce
--- /dev/null
+++ b/http/runtime.http
@@ -0,0 +1,39 @@
+### GET /api/v1/health
+GET http://127.0.0.1:8001/api/v1/health
+
+### POST /api/v1/jupyter start
+POST http://127.0.0.1:8001/api/v1/jupyter
+Content-Type: application/json
+
+{
+  "action": "start",
+  "workspace_id": "test1234"
+}
+
+
+### POST /api/v1/jupyter list
+POST http://127.0.0.1:8001/api/v1/jupyter
+Content-Type: application/json
+
+{
+  "action": "list"
+}
+
+
+### POST /api/v1/jupyter stop
+POST http://127.0.0.1:8001/api/v1/jupyter
+Content-Type: application/json
+
+{
+  "action": "stop",
+  "workspace_id": "test1234"
+}
+
+### POST /api/v1/jupyter get
+POST http://127.0.0.1:8001/api/v1/jupyter
+Content-Type: application/json
+
+{
+  "action": "get",
+  "workspace_id": "test1234"
+}
\ No newline at end of file
diff --git a/migrations/README.md b/migrations/README.md
new file mode 100644
index 0000000..05760ff
--- /dev/null
+++ b/migrations/README.md
@@ -0,0 +1,28 @@
+# Migrations
+
+MySQL 8 Alembic 迁移目录。
+
+当前链路：
+
+```text
+20260724_0001  完整业务 Schema 基线
+20260728_0002  Demo 用户、角色、Workspace 数据
+20260728_0003  调度稳定版本可见性字段
+20260730_0004  编辑租约字段 redis_lock_key -> lock_key 兼容迁移
+```
+
+Docker Compose 中的 `migrate` 一次性容器会在 Backend 和 Runtime 启动前执行：
+
+```bash
+alembic upgrade head
+```
+
+本地执行：
+
+```bash
+export DATABASE_URL='mysql+asyncmy://user:password@127.0.0.1:3308/model_platform?charset=utf8mb4'
+uv run --package backend alembic current
+uv run --package backend alembic upgrade head
+```
+
+已发布的旧 revision 不应再修改；后续表结构调整必须新增 revision。
diff --git a/migrations/__init__.py b/migrations/__init__.py
new file mode 100644
index 0000000..096a364
--- /dev/null
+++ b/migrations/__init__.py
@@ -0,0 +1 @@
+"""Alembic schema and controlled data migrations."""
diff --git a/migrations/data/README.md b/migrations/data/README.md
new file mode 100644
index 0000000..e9a0a48
--- /dev/null
+++ b/migrations/data/README.md
@@ -0,0 +1,69 @@
+# Data Migrations
+
+该目录保存从旧版 JSON 状态文件迁移到 MySQL 的一次性工具。
+
+数据迁移工具必须满足：
+
+- 默认只预检，必须显式传入 `--apply` 才能写数据库；
+- 单个事务提交，失败时完整回滚；
+- 可以安全重复执行，不产生重复数据；
+- 输出源文件摘要、源数据数量和实际变更数量；
+- 不修改或删除旧版 JSON 源文件。
+
+## system.json
+
+```powershell
+$env:DATABASE_URL = "mysql+asyncmy://<user>:<password>@<host>:3306/<database>?charset=utf8mb4"
+python -m migrations.data.migrate_system_json --source "<path>/system.json"
+python -m migrations.data.migrate_system_json --source "<path>/system.json" --apply
+```
+
+新迁移用户使用不可登录的占位密码哈希。后续接入认证时，必须通过密码初始化、
+管理员重置或外部身份认证启用登录，不能把旧版无密码账号视为已有凭据。
+
+## WORKSPACE_DEFINITIONS
+
+旧版 Workspace 定义位于 `文件1/server.py` 的
+`WORKSPACE_DEFINITIONS` 常量中。迁移工具通过 Python AST 仅读取这一静态常量，
+不执行旧服务代码：
+
+```powershell
+python -m migrations.data.migrate_legacy_workspaces --source "<path>/server.py"
+python -m migrations.data.migrate_legacy_workspaces --source "<path>/server.py" --apply
+```
+
+- 创建者取每个 Workspace 成员中的第一个管理员；
+- 成员角色沿用第 9 步迁入的平台注册角色；
+- 活跃目录统一为 `file:///workspace/workspaces/{workspace_code}`；
+- 制品前缀统一为 `workspaces/{workspace_id}`；
+- 旧审计记录仅在用户唯一属于一个 Workspace 时补齐归属。
+
+## 第 9 小步执行记录
+
+- 执行日期：2026-07-24
+- 源文件：`文件1/platform_data/system.json`
+- SHA-256：`ef4ee0e92f4a3679c17f23aff6066688fa9231db4477208e36fcbd343cd446a7`
+- 迁移结果：2 个角色、13 个权限、21 条角色权限、4 个用户、26 条审计记录
+- 角色权限：`admin=13`，`developer=8`
+- 中文字段：UTF-8 校验通过，问号乱码记录为 0
+- 幂等验证：第二次执行插入和更新均为 0，跳过已有审计记录 26 条
+- 旧版源文件：未修改、未删除
+
+## 第 10 小步执行记录
+
+- 执行日期：2026-07-24
+- 源文件及常量：`文件1/server.py` / `WORKSPACE_DEFINITIONS`
+- SHA-256：`d7ec05f1ab7b2cdeb78f6293de40fbe23fa74b6a7fe4ccb03a9cc64e4cc1f464`
+- 迁移结果：2 个 Workspace、4 条成员关系
+- 成员分布：`model-dev` 2 人，`risk-validation` 2 人
+- 审计归属：补齐 26 条，其中 `model-dev` 24 条、`risk-validation` 2 条
+- 中文字段：UTF-8 校验通过，异常记录为 0
+- 幂等验证：第二次执行及镜像内 dry-run 的变更数均为 0
+- 镜像验证：仅挂载旧版 `server.py` 时，迁移工具可独立读取并完成校验
+- 旧版源文件：未修改、未删除
+
+## 第 11、12 小步数据处理决定
+
+根据实施确认，第 11、12 小步不迁移旧版资源、脚本或稳定版本数据。新实现直接
+使用 MySQL、Workspace 文件目录和 RustFS，从空的 `data_resources`、`scripts`
+及 `versions` 表开始运行。功能验收产生的临时对象和数据库记录均已清理。
diff --git a/migrations/data/__init__.py b/migrations/data/__init__.py
new file mode 100644
index 0000000..c38c261
--- /dev/null
+++ b/migrations/data/__init__.py
@@ -0,0 +1 @@
+"""One-time, idempotent data migration tools."""
diff --git a/migrations/data/migrate_legacy_workspaces.py b/migrations/data/migrate_legacy_workspaces.py
new file mode 100644
index 0000000..6953d78
--- /dev/null
+++ b/migrations/data/migrate_legacy_workspaces.py
@@ -0,0 +1,413 @@
+from __future__ import annotations
+
+import argparse
+import ast
+import asyncio
+import hashlib
+import json
+import os
+from collections import defaultdict
+from pathlib import Path
+from typing import Any
+from urllib.parse import quote
+
+from pydantic import BaseModel, ConfigDict, TypeAdapter
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db import create_database_engine, create_session_factory
+from common.db.models import (
+    AuditLogs,
+    Roles,
+    Users,
+    WorkspaceMembers,
+    Workspaces,
+)
+from migrations.data.migrate_system_json import (
+    deterministic_legacy_ulid,
+    set_changed,
+)
+
+
+class LegacyWorkspace(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    id: str
+    name: str
+    description: str | None = None
+    userIds: list[str]
+    portOffset: int
+
+
+WORKSPACE_LIST = TypeAdapter(list[LegacyWorkspace])
+
+
+def require_unique(values: list[str], label: str) -> None:
+    duplicates = sorted(
+        value for value in set(values) if values.count(value) > 1
+    )
+    if duplicates:
+        raise ValueError(f"duplicate {label}: {duplicates}")
+
+
+def extract_workspace_definitions(
+    source_path: Path,
+) -> tuple[list[LegacyWorkspace], str]:
+    raw = source_path.read_bytes()
+    module = ast.parse(
+        raw.decode("utf-8-sig"),
+        filename=str(source_path),
+    )
+    definition: Any | None = None
+
+    for statement in module.body:
+        if not isinstance(statement, ast.Assign):
+            continue
+        if any(
+            isinstance(target, ast.Name)
+            and target.id == "WORKSPACE_DEFINITIONS"
+            for target in statement.targets
+        ):
+            definition = ast.literal_eval(statement.value)
+            break
+
+    if definition is None:
+        raise ValueError("WORKSPACE_DEFINITIONS was not found")
+
+    workspaces = WORKSPACE_LIST.validate_python(definition)
+    require_unique([item.id for item in workspaces], "workspace ids")
+    for workspace in workspaces:
+        require_unique(
+            workspace.userIds,
+            f"members of workspace {workspace.id}",
+        )
+        if not workspace.userIds:
+            raise ValueError(
+                f"workspace {workspace.id!r} has no members"
+            )
+
+    return workspaces, hashlib.sha256(raw).hexdigest()
+
+
+def new_stats() -> dict[str, int]:
+    return {
+        "workspaces_inserted": 0,
+        "workspaces_updated": 0,
+        "workspace_members_inserted": 0,
+        "workspace_members_updated": 0,
+        "audit_logs_workspace_backfilled": 0,
+    }
+
+
+async def load_users_and_roles(
+    session: AsyncSession,
+) -> tuple[dict[str, Users], dict[str, str]]:
+    users = {
+        item.username: item
+        for item in (
+            await session.scalars(select(Users).order_by(Users.username))
+        ).all()
+    }
+    roles_by_id = {
+        item.role_id: item.role_code
+        for item in (
+            await session.scalars(select(Roles).order_by(Roles.role_code))
+        ).all()
+    }
+    role_codes_by_username = {
+        username: roles_by_id[user.platform_role_id]
+        for username, user in users.items()
+        if user.platform_role_id in roles_by_id
+    }
+    return users, role_codes_by_username
+
+
+def validate_members(
+    workspaces: list[LegacyWorkspace],
+    users: dict[str, Users],
+    role_codes_by_username: dict[str, str],
+) -> None:
+    source_members = {
+        username
+        for workspace in workspaces
+        for username in workspace.userIds
+    }
+    missing_users = sorted(source_members - set(users))
+    if missing_users:
+        raise ValueError(
+            f"workspace members were not migrated as users: {missing_users}"
+        )
+    users_without_roles = sorted(
+        source_members - set(role_codes_by_username)
+    )
+    if users_without_roles:
+        raise ValueError(
+            "workspace members have no platform role: "
+            f"{users_without_roles}"
+        )
+
+
+def workspace_creator(
+    workspace: LegacyWorkspace,
+    users: dict[str, Users],
+    role_codes_by_username: dict[str, str],
+) -> Users:
+    admin_username = next(
+        (
+            username
+            for username in workspace.userIds
+            if role_codes_by_username[username] == "admin"
+        ),
+        workspace.userIds[0],
+    )
+    return users[admin_username]
+
+
+async def migrate_workspaces(
+    session: AsyncSession,
+    source: list[LegacyWorkspace],
+    users: dict[str, Users],
+    role_codes_by_username: dict[str, str],
+    stats: dict[str, int],
+) -> dict[str, str]:
+    existing = {
+        item.workspace_code: item
+        for item in (
+            await session.scalars(
+                select(Workspaces).order_by(Workspaces.workspace_code)
+            )
+        ).all()
+    }
+    workspace_ids: dict[str, str] = {}
+
+    for legacy in source:
+        workspace = existing.get(legacy.id)
+        if workspace is None:
+            workspace_id = deterministic_legacy_ulid(
+                "workspace", legacy.id
+            )
+            creator = workspace_creator(
+                legacy,
+                users,
+                role_codes_by_username,
+            )
+            workspace = Workspaces(
+                workspace_id=workspace_id,
+                workspace_code=legacy.id,
+                workspace_name=legacy.name,
+                description=legacy.description,
+                active_root_uri=(
+                    "file:///workspace/workspaces/"
+                    f"{quote(legacy.id, safe='')}"
+                ),
+                quota_bytes=0,
+                used_bytes=0,
+                status="active",
+                created_by=creator.user_id,
+                artifact_bucket="model-platform",
+                artifact_prefix=f"workspaces/{workspace_id}",
+            )
+            session.add(workspace)
+            stats["workspaces_inserted"] += 1
+        else:
+            values = {
+                "workspace_name": legacy.name,
+                "description": legacy.description,
+                "active_root_uri": (
+                    "file:///workspace/workspaces/"
+                    f"{quote(legacy.id, safe='')}"
+                ),
+                "artifact_bucket": "model-platform",
+                "artifact_prefix": (
+                    f"workspaces/{workspace.workspace_id}"
+                ),
+            }
+            if set_changed(workspace, values):
+                stats["workspaces_updated"] += 1
+        workspace_ids[legacy.id] = workspace.workspace_id
+
+    return workspace_ids
+
+
+async def migrate_members(
+    session: AsyncSession,
+    source: list[LegacyWorkspace],
+    workspace_ids: dict[str, str],
+    users: dict[str, Users],
+    stats: dict[str, int],
+) -> None:
+    existing = {
+        (item.workspace_id, item.user_id): item
+        for item in (
+            await session.scalars(select(WorkspaceMembers))
+        ).all()
+    }
+
+    for legacy in source:
+        workspace_id = workspace_ids[legacy.id]
+        for username in legacy.userIds:
+            user = users[username]
+            pair = (workspace_id, user.user_id)
+            member = existing.get(pair)
+            values = {
+                "role_id": user.platform_role_id,
+                "member_status": "active",
+            }
+            if member is None:
+                member = WorkspaceMembers(
+                    workspace_id=workspace_id,
+                    user_id=user.user_id,
+                    **values,
+                )
+                session.add(member)
+                existing[pair] = member
+                stats["workspace_members_inserted"] += 1
+            elif set_changed(member, values):
+                stats["workspace_members_updated"] += 1
+
+
+async def backfill_audit_workspaces(
+    session: AsyncSession,
+    source: list[LegacyWorkspace],
+    workspace_ids: dict[str, str],
+    users: dict[str, Users],
+    stats: dict[str, int],
+) -> None:
+    workspace_codes_by_username: dict[str, set[str]] = defaultdict(set)
+    for workspace in source:
+        for username in workspace.userIds:
+            workspace_codes_by_username[username].add(workspace.id)
+
+    workspace_by_user_id = {
+        users[username].user_id: workspace_ids[next(iter(codes))]
+        for username, codes in workspace_codes_by_username.items()
+        if len(codes) == 1
+    }
+
+    audit_logs = (
+        await session.scalars(
+            select(AuditLogs).where(AuditLogs.workspace_id.is_(None))
+        )
+    ).all()
+    for audit_log in audit_logs:
+        if (
+            not isinstance(audit_log.detail_json, dict)
+            or audit_log.detail_json.get("migration_source")
+            != "platform_data/system.json"
+        ):
+            continue
+        workspace_id = workspace_by_user_id.get(
+            audit_log.actor_user_id
+        )
+        if workspace_id is not None:
+            audit_log.workspace_id = workspace_id
+            stats["audit_logs_workspace_backfilled"] += 1
+
+
+async def run_migration(
+    database_url: str,
+    source: list[LegacyWorkspace],
+    *,
+    apply_changes: bool,
+) -> dict[str, int]:
+    engine = create_database_engine(database_url)
+    factory = create_session_factory(engine)
+    stats = new_stats()
+
+    try:
+        async with factory() as session:
+            try:
+                users, role_codes_by_username = (
+                    await load_users_and_roles(session)
+                )
+                validate_members(
+                    source,
+                    users,
+                    role_codes_by_username,
+                )
+                workspace_ids = await migrate_workspaces(
+                    session,
+                    source,
+                    users,
+                    role_codes_by_username,
+                    stats,
+                )
+                await migrate_members(
+                    session,
+                    source,
+                    workspace_ids,
+                    users,
+                    stats,
+                )
+                await backfill_audit_workspaces(
+                    session,
+                    source,
+                    workspace_ids,
+                    users,
+                    stats,
+                )
+
+                if apply_changes:
+                    await session.commit()
+                else:
+                    await session.rollback()
+            except Exception:
+                await session.rollback()
+                raise
+    finally:
+        await engine.dispose()
+
+    return stats
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description=(
+            "Migrate legacy WORKSPACE_DEFINITIONS into MySQL."
+        )
+    )
+    parser.add_argument(
+        "--source",
+        required=True,
+        type=Path,
+        help="Path to the legacy server.py file.",
+    )
+    parser.add_argument(
+        "--apply",
+        action="store_true",
+        help="Commit changes. Without this flag the transaction is rolled back.",
+    )
+    return parser.parse_args()
+
+
+async def async_main() -> None:
+    args = parse_args()
+    source_path = args.source.resolve(strict=True)
+    workspaces, source_sha256 = extract_workspace_definitions(source_path)
+    stats = await run_migration(
+        os.environ["DATABASE_URL"],
+        workspaces,
+        apply_changes=args.apply,
+    )
+    result = {
+        "mode": "apply" if args.apply else "dry-run",
+        "source": str(source_path),
+        "source_symbol": "WORKSPACE_DEFINITIONS",
+        "source_sha256": source_sha256,
+        "source_counts": {
+            "workspaces": len(workspaces),
+            "workspace_members": sum(
+                len(workspace.userIds) for workspace in workspaces
+            ),
+        },
+        "changes": stats,
+    }
+    print(json.dumps(result, ensure_ascii=False, indent=2))
+
+
+def main() -> None:
+    asyncio.run(async_main())
+
+
+if __name__ == "__main__":
+    main()
diff --git a/migrations/data/migrate_system_json.py b/migrations/data/migrate_system_json.py
new file mode 100644
index 0000000..8a52322
--- /dev/null
+++ b/migrations/data/migrate_system_json.py
@@ -0,0 +1,504 @@
+from __future__ import annotations
+
+import argparse
+import asyncio
+import hashlib
+import json
+import os
+from datetime import datetime
+from pathlib import Path
+from typing import Any
+from urllib.parse import quote
+
+from pydantic import BaseModel, ConfigDict, Field
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db import create_database_engine, create_session_factory
+from common.db.models import (
+    AuditLogs,
+    Permissions,
+    RolePermissions,
+    Roles,
+    Users,
+)
+
+CROCKFORD_BASE32 = "0123456789ABCDEFGHJKMNPQRSTVWXYZ"
+LEGACY_PASSWORD_HASH = "!legacy-account-without-password!"
+
+PERMISSION_NAMES = {
+    "dashboard.view": "查看工作台",
+    "script.build": "构建脚本",
+    "script.public.manage": "管理公共脚本",
+    "schedule.own": "管理本人调度",
+    "schedule.all": "管理全部调度",
+    "experiment.own": "管理本人实验",
+    "experiment.all": "管理全部实验",
+    "resource.personal": "管理个人资源",
+    "resource.public.upload": "上传公共资源",
+    "resource.public.manage": "管理公共资源",
+    "system.view": "查看系统管理",
+    "system.manage": "管理系统配置",
+    "audit.view": "查看审计日志",
+}
+
+ACTION_CATALOG = {
+    "保存调度配置": ("schedule.save", "schedule"),
+    "删除脚本对象": ("script.delete", "script"),
+    "删除实验记录": ("experiment.delete", "experiment"),
+    "删除数据资源": ("data_resource.delete", "data_resource"),
+    "上传数据资源": ("data_resource.upload", "data_resource"),
+    "新建脚本对象": ("script.create", "script"),
+    "修改用户角色": ("user.role.update", "user"),
+    "运行 Python": ("script.run_python", "script"),
+    "运行调度": ("schedule.run", "schedule"),
+}
+
+
+class LegacyUser(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    id: str
+    name: str
+    role: str
+    roleKey: str
+    avatar: str | None = None
+
+
+class LegacyRole(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    key: str
+    name: str
+    description: str | None = None
+    permissions: list[str]
+
+
+class LegacyAuditLog(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    id: str
+    actorId: str
+    actorName: str
+    role: str
+    action: str
+    target: str
+    detail: str
+    status: str
+    createdAt: str
+
+
+class LegacySystem(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    users: list[LegacyUser]
+    roles: list[LegacyRole]
+    audit_logs: list[LegacyAuditLog] = Field(alias="auditLogs")
+
+
+def deterministic_legacy_ulid(entity_type: str, legacy_key: str) -> str:
+    """Create a stable ULID-compatible ID with an epoch timestamp prefix."""
+    digest = hashlib.sha256(
+        f"model-platform-v1:{entity_type}:{legacy_key}".encode("utf-8")
+    ).digest()
+    value = int.from_bytes(b"\x00" * 6 + digest[:10], byteorder="big")
+    encoded = ["0"] * 26
+    for index in range(25, -1, -1):
+        encoded[index] = CROCKFORD_BASE32[value & 31]
+        value >>= 5
+    return "".join(encoded)
+
+
+def require_unique(values: list[str], label: str) -> None:
+    duplicates = sorted(
+        value for value in set(values) if values.count(value) > 1
+    )
+    if duplicates:
+        raise ValueError(f"duplicate {label}: {duplicates}")
+
+
+def validate_source(source: LegacySystem) -> None:
+    role_codes = [role.key for role in source.roles]
+    user_codes = [user.id for user in source.users]
+    audit_ids = [item.id for item in source.audit_logs]
+    require_unique(role_codes, "role keys")
+    require_unique(user_codes, "user ids")
+    require_unique(audit_ids, "audit ids")
+
+    role_code_set = set(role_codes)
+    unknown_roles = sorted(
+        user.roleKey
+        for user in source.users
+        if user.roleKey not in role_code_set
+    )
+    if unknown_roles:
+        raise ValueError(f"users reference unknown roles: {unknown_roles}")
+
+    user_code_set = set(user_codes)
+    unknown_actors = sorted(
+        item.actorId
+        for item in source.audit_logs
+        if item.actorId not in user_code_set
+    )
+    if unknown_actors:
+        raise ValueError(f"audit logs reference unknown users: {unknown_actors}")
+
+    for role in source.roles:
+        require_unique(role.permissions, f"permissions of role {role.key}")
+        for permission_code in role.permissions:
+            if "." not in permission_code:
+                raise ValueError(
+                    f"invalid permission code {permission_code!r}"
+                )
+
+
+def load_source(path: Path) -> tuple[LegacySystem, str]:
+    raw = path.read_bytes()
+    source = LegacySystem.model_validate_json(raw)
+    validate_source(source)
+    return source, hashlib.sha256(raw).hexdigest()
+
+
+def set_changed(instance: Any, values: dict[str, Any]) -> bool:
+    changed = False
+    for attribute, value in values.items():
+        if getattr(instance, attribute) != value:
+            setattr(instance, attribute, value)
+            changed = True
+    return changed
+
+
+def new_stats() -> dict[str, int]:
+    return {
+        "roles_inserted": 0,
+        "roles_updated": 0,
+        "permissions_inserted": 0,
+        "permissions_updated": 0,
+        "role_permissions_inserted": 0,
+        "users_inserted": 0,
+        "users_updated": 0,
+        "audit_logs_inserted": 0,
+        "audit_logs_skipped": 0,
+    }
+
+
+async def migrate_roles(
+    session: AsyncSession,
+    source: LegacySystem,
+    stats: dict[str, int],
+) -> dict[str, str]:
+    existing = {
+        item.role_code: item
+        for item in (
+            await session.scalars(select(Roles).order_by(Roles.role_code))
+        ).all()
+    }
+    role_ids: dict[str, str] = {}
+
+    for legacy in source.roles:
+        values = {
+            "role_name": legacy.name,
+            "role_scope": "platform",
+            "is_builtin": 1,
+            "description": legacy.description,
+        }
+        role = existing.get(legacy.key)
+        if role is None:
+            role = Roles(
+                role_id=deterministic_legacy_ulid("role", legacy.key),
+                role_code=legacy.key,
+                **values,
+            )
+            session.add(role)
+            stats["roles_inserted"] += 1
+        elif set_changed(role, values):
+            stats["roles_updated"] += 1
+        role_ids[legacy.key] = role.role_id
+
+    return role_ids
+
+
+async def migrate_permissions(
+    session: AsyncSession,
+    source: LegacySystem,
+    stats: dict[str, int],
+) -> dict[str, str]:
+    permission_codes = sorted(
+        {
+            permission_code
+            for role in source.roles
+            for permission_code in role.permissions
+        }
+    )
+    existing = {
+        item.permission_code: item
+        for item in (
+            await session.scalars(
+                select(Permissions).order_by(Permissions.permission_code)
+            )
+        ).all()
+    }
+    permission_ids: dict[str, str] = {}
+
+    for permission_code in permission_codes:
+        values = {
+            "permission_name": PERMISSION_NAMES.get(
+                permission_code, permission_code
+            ),
+            "module_code": permission_code.split(".", 1)[0],
+            "description": f"由旧版 system.json 迁移：{permission_code}",
+        }
+        permission = existing.get(permission_code)
+        if permission is None:
+            permission = Permissions(
+                permission_id=deterministic_legacy_ulid(
+                    "permission", permission_code
+                ),
+                permission_code=permission_code,
+                **values,
+            )
+            session.add(permission)
+            stats["permissions_inserted"] += 1
+        elif set_changed(permission, values):
+            stats["permissions_updated"] += 1
+        permission_ids[permission_code] = permission.permission_id
+
+    return permission_ids
+
+
+async def migrate_role_permissions(
+    session: AsyncSession,
+    source: LegacySystem,
+    role_ids: dict[str, str],
+    permission_ids: dict[str, str],
+    stats: dict[str, int],
+) -> None:
+    existing = set(
+        (
+            await session.execute(
+                select(
+                    RolePermissions.role_id,
+                    RolePermissions.permission_id,
+                )
+            )
+        ).all()
+    )
+
+    for role in source.roles:
+        for permission_code in role.permissions:
+            pair = (
+                role_ids[role.key],
+                permission_ids[permission_code],
+            )
+            if pair not in existing:
+                session.add(
+                    RolePermissions(
+                        role_id=pair[0],
+                        permission_id=pair[1],
+                    )
+                )
+                existing.add(pair)
+                stats["role_permissions_inserted"] += 1
+
+
+async def migrate_users(
+    session: AsyncSession,
+    source: LegacySystem,
+    role_ids: dict[str, str],
+    stats: dict[str, int],
+) -> dict[str, str]:
+    existing = {
+        item.username: item
+        for item in (
+            await session.scalars(select(Users).order_by(Users.username))
+        ).all()
+    }
+    user_ids: dict[str, str] = {}
+
+    for legacy in source.users:
+        values = {
+            "display_name": legacy.name,
+            "platform_role_id": role_ids[legacy.roleKey],
+            "avatar_uri": (
+                f"initial://{quote(legacy.avatar)}"
+                if legacy.avatar
+                else None
+            ),
+        }
+        user = existing.get(legacy.id)
+        if user is None:
+            user = Users(
+                user_id=deterministic_legacy_ulid("user", legacy.id),
+                username=legacy.id,
+                password_hash=LEGACY_PASSWORD_HASH,
+                status="active",
+                **values,
+            )
+            session.add(user)
+            stats["users_inserted"] += 1
+        elif set_changed(user, values):
+            stats["users_updated"] += 1
+        user_ids[legacy.id] = user.user_id
+
+    return user_ids
+
+
+def audit_catalog(action: str) -> tuple[str, str]:
+    known = ACTION_CATALOG.get(action)
+    if known is not None:
+        return known
+    digest = hashlib.sha256(action.encode("utf-8")).hexdigest()[:16]
+    return (f"legacy.action.{digest}", "legacy")
+
+
+async def migrate_audit_logs(
+    session: AsyncSession,
+    source: LegacySystem,
+    user_ids: dict[str, str],
+    stats: dict[str, int],
+) -> None:
+    existing_payloads = (
+        await session.scalars(select(AuditLogs.detail_json))
+    ).all()
+    existing_legacy_ids = {
+        payload.get("legacy_id")
+        for payload in existing_payloads
+        if isinstance(payload, dict) and payload.get("legacy_id")
+    }
+
+    for legacy in sorted(source.audit_logs, key=lambda item: item.createdAt):
+        if legacy.id in existing_legacy_ids:
+            stats["audit_logs_skipped"] += 1
+            continue
+
+        action_code, target_type = audit_catalog(legacy.action)
+        session.add(
+            AuditLogs(
+                actor_user_id=user_ids[legacy.actorId],
+                action_code=action_code,
+                target_type=target_type,
+                target_id=legacy.target[:128] or None,
+                operation_status=(
+                    "success" if legacy.status == "成功" else "failed"
+                ),
+                created_at=datetime.strptime(
+                    legacy.createdAt, "%Y-%m-%d %H:%M:%S"
+                ),
+                detail_json={
+                    "legacy_id": legacy.id,
+                    "legacy_actor_name": legacy.actorName,
+                    "legacy_role": legacy.role,
+                    "legacy_action": legacy.action,
+                    "legacy_target": legacy.target,
+                    "legacy_detail": legacy.detail,
+                    "legacy_status": legacy.status,
+                    "migration_source": "platform_data/system.json",
+                },
+            )
+        )
+        existing_legacy_ids.add(legacy.id)
+        stats["audit_logs_inserted"] += 1
+
+
+async def run_migration(
+    database_url: str,
+    source: LegacySystem,
+    *,
+    apply_changes: bool,
+) -> dict[str, int]:
+    engine = create_database_engine(database_url)
+    factory = create_session_factory(engine)
+    stats = new_stats()
+
+    try:
+        async with factory() as session:
+            try:
+                role_ids = await migrate_roles(session, source, stats)
+                permission_ids = await migrate_permissions(
+                    session, source, stats
+                )
+                await migrate_role_permissions(
+                    session,
+                    source,
+                    role_ids,
+                    permission_ids,
+                    stats,
+                )
+                user_ids = await migrate_users(
+                    session, source, role_ids, stats
+                )
+                await migrate_audit_logs(
+                    session, source, user_ids, stats
+                )
+
+                if apply_changes:
+                    await session.commit()
+                else:
+                    await session.rollback()
+            except Exception:
+                await session.rollback()
+                raise
+    finally:
+        await engine.dispose()
+
+    return stats
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="Migrate legacy system.json records into MySQL."
+    )
+    parser.add_argument(
+        "--source",
+        required=True,
+        type=Path,
+        help="Path to the legacy platform_data/system.json file.",
+    )
+    parser.add_argument(
+        "--apply",
+        action="store_true",
+        help="Commit changes. Without this flag the transaction is rolled back.",
+    )
+    return parser.parse_args()
+
+
+async def async_main() -> None:
+    args = parse_args()
+    source_path = args.source.resolve(strict=True)
+    source, source_sha256 = load_source(source_path)
+    database_url = os.environ["DATABASE_URL"]
+    stats = await run_migration(
+        database_url,
+        source,
+        apply_changes=args.apply,
+    )
+    result = {
+        "mode": "apply" if args.apply else "dry-run",
+        "source": str(source_path),
+        "source_sha256": source_sha256,
+        "source_counts": {
+            "roles": len(source.roles),
+            "permissions": len(
+                {
+                    permission
+                    for role in source.roles
+                    for permission in role.permissions
+                }
+            ),
+            "role_permissions": sum(
+                len(role.permissions) for role in source.roles
+            ),
+            "users": len(source.users),
+            "audit_logs": len(source.audit_logs),
+        },
+        "changes": stats,
+    }
+    print(json.dumps(result, ensure_ascii=False, indent=2))
+
+
+def main() -> None:
+    asyncio.run(async_main())
+
+
+if __name__ == "__main__":
+    main()
diff --git a/migrations/env.py b/migrations/env.py
new file mode 100644
index 0000000..4b06419
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,127 @@
+from __future__ import annotations
+
+import asyncio
+import os
+from decimal import Decimal, InvalidOperation
+from logging.config import fileConfig
+from typing import Any
+
+from alembic import context
+from sqlalchemy import Connection, pool
+from sqlalchemy.ext.asyncio import async_engine_from_config
+
+from common.db import Base
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def canonical_default(value: Any) -> tuple[str, Any] | None:
+    """Normalize harmless MySQL quoting and numeric formatting differences."""
+    if value is None:
+        return None
+
+    text_value = str(value).strip()
+    while (
+        len(text_value) >= 2
+        and text_value.startswith("(")
+        and text_value.endswith(")")
+    ):
+        text_value = text_value[1:-1].strip()
+    if (
+        len(text_value) >= 2
+        and text_value[0] == text_value[-1]
+        and text_value[0] in {"'", '"'}
+    ):
+        text_value = text_value[1:-1]
+
+    try:
+        return ("number", Decimal(text_value).normalize())
+    except InvalidOperation:
+        return ("text", text_value.casefold())
+
+
+def compare_server_default(
+    migration_context: Any,
+    inspected_column: Any,
+    metadata_column: Any,
+    inspected_default: str | None,
+    metadata_default: Any,
+    rendered_metadata_default: str | None,
+) -> bool | None:
+    """Suppress formatting-only differences and defer real changes to Alembic."""
+    del migration_context, inspected_column, metadata_column, metadata_default
+    if canonical_default(inspected_default) == canonical_default(
+        rendered_metadata_default
+    ):
+        return False
+    return None
+
+
+def database_url() -> str:
+    """Return the runtime database URL without storing credentials in the repo."""
+    try:
+        return os.environ["DATABASE_URL"]
+    except KeyError as exc:
+        raise RuntimeError(
+            "DATABASE_URL is required for Alembic commands"
+        ) from exc
+
+
+def configure_context(*, connection: Connection | None = None) -> None:
+    options = {
+        "target_metadata": target_metadata,
+        "compare_type": True,
+        "compare_server_default": compare_server_default,
+    }
+    if connection is None:
+        context.configure(
+            url=database_url(),
+            literal_binds=True,
+            dialect_opts={"paramstyle": "named"},
+            **options,
+        )
+    else:
+        context.configure(connection=connection, **options)
+
+
+def run_migrations_offline() -> None:
+    configure_context()
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def do_run_migrations(connection: Connection) -> None:
+    configure_context(connection=connection)
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_async_migrations() -> None:
+    section = config.get_section(config.config_ini_section, {})
+    section["sqlalchemy.url"] = database_url()
+    connectable = async_engine_from_config(
+        section,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    try:
+        async with connectable.connect() as connection:
+            await connection.run_sync(do_run_migrations)
+    finally:
+        await connectable.dispose()
+
+
+def run_migrations_online() -> None:
+    asyncio.run(run_async_migrations())
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/migrations/script.py.mako b/migrations/script.py.mako
new file mode 100644
index 0000000..9bb4c4e
--- /dev/null
+++ b/migrations/script.py.mako
@@ -0,0 +1,28 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: str | Sequence[str] | None = ${repr(down_revision)}
+branch_labels: str | Sequence[str] | None = ${repr(branch_labels)}
+depends_on: str | Sequence[str] | None = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}
diff --git a/migrations/versions/20260724_0001_v1_schema_baseline.py b/migrations/versions/20260724_0001_v1_schema_baseline.py
new file mode 100644
index 0000000..ddcf2dc
--- /dev/null
+++ b/migrations/versions/20260724_0001_v1_schema_baseline.py
@@ -0,0 +1,652 @@
+"""v1 schema baseline
+
+Revision ID: 20260724_0001
+Revises: 
+Create Date: 2026-07-24 05:57:13.620909
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision: str = '20260724_0001'
+down_revision: str | Sequence[str] | None = None
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('consumer_inbox',
+    sa.Column('consumer_name', sa.String(length=128), nullable=False),
+    sa.Column('event_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('process_status', sa.String(length=16), server_default=sa.text("'processing'"), nullable=False, comment='processing/succeeded/failed'),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('message_id', sa.String(length=128), nullable=True, comment='数据库事件处理批次标识'),
+    sa.Column('processed_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('error_message', sa.String(length=2000), nullable=True),
+    sa.PrimaryKeyConstraint('consumer_name', 'event_id'),
+    comment='消费者幂等 Inbox，防止数据库事件重复处理'
+    )
+    op.create_index('idx_consumer_inbox_status', 'consumer_inbox', ['consumer_name', 'process_status', 'created_at'], unique=False)
+    op.create_table('outbox_events',
+    sa.Column('event_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('aggregate_type', sa.String(length=64), nullable=False),
+    sa.Column('aggregate_id', sa.String(length=128), nullable=False),
+    sa.Column('event_type', sa.String(length=128), nullable=False),
+    sa.Column('schema_version', mysql.SMALLINT(), server_default=sa.text('1'), nullable=False),
+    sa.Column('payload_json', sa.JSON(), nullable=False),
+    sa.Column('event_status', sa.String(length=16), server_default=sa.text("'pending'"), nullable=False, comment='pending/published/failed'),
+    sa.Column('available_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('retry_count', mysql.INTEGER(), server_default=sa.text('0'), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('trace_id', sa.String(length=64), nullable=True),
+    sa.Column('idempotency_key', sa.String(length=128), nullable=True),
+    sa.Column('published_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('last_error', sa.String(length=2000), nullable=True),
+    sa.PrimaryKeyConstraint('event_id'),
+    comment='事务 Outbox；由 Schedule Executor 直接轮询处理'
+    )
+    op.create_index('idx_outbox_aggregate', 'outbox_events', ['aggregate_type', 'aggregate_id', 'created_at'], unique=False)
+    op.create_index('idx_outbox_idempotency', 'outbox_events', ['idempotency_key'], unique=False)
+    op.create_index('idx_outbox_pending', 'outbox_events', ['event_status', 'available_at', 'created_at'], unique=False)
+    op.create_table('permissions',
+    sa.Column('permission_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('permission_code', sa.String(length=128), nullable=False),
+    sa.Column('permission_name', sa.String(length=100), nullable=False),
+    sa.Column('module_code', sa.String(length=64), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('description', sa.String(length=500), nullable=True),
+    sa.PrimaryKeyConstraint('permission_id'),
+    comment='权限点'
+    )
+    op.create_index('idx_permissions_module', 'permissions', ['module_code'], unique=False)
+    op.create_index('uk_permissions_code', 'permissions', ['permission_code'], unique=True)
+    op.create_table('roles',
+    sa.Column('role_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('role_code', sa.String(length=64), nullable=False),
+    sa.Column('role_name', sa.String(length=100), nullable=False),
+    sa.Column('role_scope', sa.String(length=16), nullable=False, comment='platform/workspace'),
+    sa.Column('is_builtin', mysql.TINYINT(display_width=1), server_default=sa.text('0'), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('description', sa.String(length=500), nullable=True),
+    sa.PrimaryKeyConstraint('role_id'),
+    comment='角色'
+    )
+    op.create_index('uk_roles_code', 'roles', ['role_code'], unique=True)
+    op.create_table('role_permissions',
+    sa.Column('role_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('permission_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.ForeignKeyConstraint(['permission_id'], ['permissions.permission_id'], name='fk_role_permissions_permission', ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['role_id'], ['roles.role_id'], name='fk_role_permissions_role', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('role_id', 'permission_id'),
+    comment='角色权限'
+    )
+    op.create_index('fk_role_permissions_permission', 'role_permissions', ['permission_id'], unique=False)
+    op.create_table('users',
+    sa.Column('user_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('username', sa.String(length=64), nullable=False),
+    sa.Column('display_name', sa.String(length=100), nullable=False),
+    sa.Column('password_hash', sa.String(length=255), nullable=False),
+    sa.Column('status', sa.String(length=16), server_default=sa.text("'active'"), nullable=False, comment='active/disabled/locked'),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('email', sa.String(length=255), nullable=True),
+    sa.Column('platform_role_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('avatar_uri', sa.String(length=1000), nullable=True),
+    sa.Column('last_login_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('deleted_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.ForeignKeyConstraint(['platform_role_id'], ['roles.role_id'], name='fk_users_platform_role', ondelete='SET NULL'),
+    sa.PrimaryKeyConstraint('user_id'),
+    comment='平台用户'
+    )
+    op.create_index('fk_users_platform_role', 'users', ['platform_role_id'], unique=False)
+    op.create_index('idx_users_status', 'users', ['status'], unique=False)
+    op.create_index('uk_users_email', 'users', ['email'], unique=True)
+    op.create_index('uk_users_username', 'users', ['username'], unique=True)
+    op.create_table('workspaces',
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_code', sa.String(length=64), nullable=False),
+    sa.Column('workspace_name', sa.String(length=150), nullable=False),
+    sa.Column('active_root_uri', sa.String(length=1500), nullable=False, comment='活动工作区，建议 NFS/PVC/file URI'),
+    sa.Column('quota_bytes', mysql.BIGINT(), server_default=sa.text('0'), nullable=False, comment='0 表示不限额'),
+    sa.Column('used_bytes', mysql.BIGINT(), server_default=sa.text('0'), nullable=False),
+    sa.Column('status', sa.String(length=24), server_default=sa.text("'active'"), nullable=False, comment='creating/active/suspended/deleting/deleted'),
+    sa.Column('created_by', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('description', sa.String(length=1000), nullable=True),
+    sa.Column('artifact_bucket', sa.String(length=128), nullable=True, comment='RustFS bucket'),
+    sa.Column('artifact_prefix', sa.String(length=512), nullable=True, comment='RustFS object key prefix'),
+    sa.Column('deleted_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.ForeignKeyConstraint(['created_by'], ['users.user_id'], name='fk_workspaces_created_by', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('workspace_id'),
+    comment='Workspace'
+    )
+    op.create_index('fk_workspaces_created_by', 'workspaces', ['created_by'], unique=False)
+    op.create_index('idx_workspaces_status', 'workspaces', ['status'], unique=False)
+    op.create_index('uk_workspaces_code', 'workspaces', ['workspace_code'], unique=True)
+    op.create_table('audit_logs',
+    sa.Column('audit_id', mysql.BIGINT(), nullable=False),
+    sa.Column('action_code', sa.String(length=128), nullable=False),
+    sa.Column('target_type', sa.String(length=64), nullable=False),
+    sa.Column('operation_status', sa.String(length=16), server_default=sa.text("'success'"), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('actor_user_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('target_id', sa.String(length=128), nullable=True),
+    sa.Column('client_ip', sa.String(length=45), nullable=True),
+    sa.Column('user_agent', sa.String(length=1000), nullable=True),
+    sa.Column('detail_json', sa.JSON(), nullable=True),
+    sa.ForeignKeyConstraint(['actor_user_id'], ['users.user_id'], name='fk_audit_actor', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_audit_workspace', ondelete='SET NULL'),
+    sa.PrimaryKeyConstraint('audit_id'),
+    comment='操作审计日志'
+    )
+    op.create_index('idx_audit_action_time', 'audit_logs', ['action_code', 'created_at'], unique=False)
+    op.create_index('idx_audit_actor_time', 'audit_logs', ['actor_user_id', 'created_at'], unique=False)
+    op.create_index('idx_audit_workspace_time', 'audit_logs', ['workspace_id', 'created_at'], unique=False)
+    op.create_table('runtime_instances',
+    sa.Column('runtime_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('runtime_type', sa.String(length=24), server_default=sa.text("'jupyter'"), nullable=False),
+    sa.Column('runtime_provider', sa.String(length=24), nullable=False, comment='process/docker/kubernetes'),
+    sa.Column('proxy_base_path', sa.String(length=512), nullable=False),
+    sa.Column('desired_state', sa.String(length=16), server_default=sa.text("'running'"), nullable=False),
+    sa.Column('actual_state', sa.String(length=24), server_default=sa.text("'provisioning'"), nullable=False, comment='provisioning/starting/running/unhealthy/stopping/stopped/failed'),
+    sa.Column('state_version', mysql.INTEGER(), server_default=sa.text('0'), nullable=False, comment='乐观锁版本'),
+    sa.Column('started_by', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('owner_user_id', sa.CHAR(length=26), nullable=True, comment='为空表示 Workspace 级 Runtime'),
+    sa.Column('runtime_ref', sa.String(length=255), nullable=True, comment='PID/container ID/pod UID'),
+    sa.Column('host_node', sa.String(length=255), nullable=True),
+    sa.Column('internal_url', sa.String(length=1000), nullable=True),
+    sa.Column('started_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('last_heartbeat_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('lease_expires_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('stopped_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('error_message', sa.Text(), nullable=True),
+    sa.ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], name='fk_runtime_owner', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['started_by'], ['users.user_id'], name='fk_runtime_started_by', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_runtime_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('runtime_id'),
+    comment='Jupyter/未来 VS Code、OpenCode Runtime 实例'
+    )
+    op.create_index('fk_runtime_started_by', 'runtime_instances', ['started_by'], unique=False)
+    op.create_index('idx_runtime_lease', 'runtime_instances', ['actual_state', 'lease_expires_at'], unique=False)
+    op.create_index('idx_runtime_owner_state', 'runtime_instances', ['owner_user_id', 'actual_state'], unique=False)
+    op.create_index('idx_runtime_workspace_state', 'runtime_instances', ['workspace_id', 'runtime_type', 'actual_state'], unique=False)
+    op.create_table('schedules',
+    sa.Column('schedule_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('schedule_name', sa.String(length=255), nullable=False),
+    sa.Column('trigger_type', sa.String(length=16), server_default=sa.text("'cron'"), nullable=False, comment='manual/cron/api'),
+    sa.Column('timezone', sa.String(length=64), server_default=sa.text("'Asia/Shanghai'"), nullable=False),
+    sa.Column('enabled', mysql.TINYINT(display_width=1), server_default=sa.text('0'), nullable=False),
+    sa.Column('workflow_version', mysql.INTEGER(), server_default=sa.text('1'), nullable=False),
+    sa.Column('max_concurrency', mysql.INTEGER(), server_default=sa.text('1'), nullable=False),
+    sa.Column('failure_policy', sa.String(length=24), server_default=sa.text("'stop'"), nullable=False, comment='stop/continue'),
+    sa.Column('created_by', sa.CHAR(length=26), nullable=False),
+    sa.Column('updated_by', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('description', sa.String(length=1000), nullable=True),
+    sa.Column('cron_expression', sa.String(length=128), nullable=True),
+    sa.Column('last_run_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('next_run_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('deleted_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.ForeignKeyConstraint(['created_by'], ['users.user_id'], name='fk_schedules_created_by', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['updated_by'], ['users.user_id'], name='fk_schedules_updated_by', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_schedules_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('schedule_id'),
+    comment='调度方案'
+    )
+    op.create_index('fk_schedules_created_by', 'schedules', ['created_by'], unique=False)
+    op.create_index('fk_schedules_updated_by', 'schedules', ['updated_by'], unique=False)
+    op.create_index('idx_schedules_due', 'schedules', ['enabled', 'next_run_at'], unique=False)
+    op.create_index('idx_schedules_workspace', 'schedules', ['workspace_id', 'enabled', 'updated_at'], unique=False)
+    op.create_table('storage_objects',
+    sa.Column('storage_object_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('object_type', sa.String(length=16), nullable=False, comment='file/directory'),
+    sa.Column('usage_type', sa.String(length=32), nullable=False, comment='working_copy/public_script/data_resource/version_artifact/snapshot/run_log/run_result'),
+    sa.Column('storage_backend', sa.String(length=16), nullable=False, comment='workspace_fs/rustfs'),
+    sa.Column('storage_uri', sa.String(length=1500), nullable=False),
+    sa.Column('file_name', sa.String(length=255), nullable=False),
+    sa.Column('size_bytes', mysql.BIGINT(), server_default=sa.text('0'), nullable=False),
+    sa.Column('visibility', sa.String(length=16), server_default=sa.text("'private'"), nullable=False, comment='private/workspace/public'),
+    sa.Column('is_immutable', mysql.TINYINT(display_width=1), server_default=sa.text('0'), nullable=False),
+    sa.Column('object_status', sa.String(length=24), server_default=sa.text("'available'"), nullable=False, comment='uploading/available/deleting/deleted/failed'),
+    sa.Column('created_by', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('owner_user_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('parent_object_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('relative_path', sa.String(length=1024), nullable=True, comment='Workspace 相对路径'),
+    sa.Column('path_hash', sa.BINARY(length=32), nullable=True, comment='SHA-256(relative_path)，由应用写入'),
+    sa.Column('bucket_name', sa.String(length=128), nullable=True),
+    sa.Column('object_key', sa.String(length=1024), nullable=True),
+    sa.Column('object_key_hash', sa.BINARY(length=32), nullable=True, comment='SHA-256(object_key)，由应用写入'),
+    sa.Column('file_extension', sa.String(length=32), nullable=True),
+    sa.Column('mime_type', sa.String(length=255), nullable=True),
+    sa.Column('content_hash', sa.CHAR(length=64), nullable=True, comment='SHA-256 hex'),
+    sa.Column('object_etag', sa.String(length=255), nullable=True),
+    sa.Column('deleted_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.ForeignKeyConstraint(['created_by'], ['users.user_id'], name='fk_storage_created_by', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], name='fk_storage_owner', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['parent_object_id'], ['storage_objects.storage_object_id'], name='fk_storage_parent', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_storage_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('storage_object_id'),
+    comment='Workspace 文件和 RustFS 对象的统一元数据'
+    )
+    op.create_index('fk_storage_created_by', 'storage_objects', ['created_by'], unique=False)
+    op.create_index('idx_storage_content_hash', 'storage_objects', ['content_hash'], unique=False)
+    op.create_index('idx_storage_owner', 'storage_objects', ['owner_user_id', 'object_status'], unique=False)
+    op.create_index('idx_storage_parent', 'storage_objects', ['parent_object_id'], unique=False)
+    op.create_index('idx_storage_workspace_usage', 'storage_objects', ['workspace_id', 'usage_type', 'object_status'], unique=False)
+    op.create_index('uk_storage_bucket_key', 'storage_objects', ['storage_backend', 'bucket_name', 'object_key_hash'], unique=True)
+    op.create_index('uk_storage_workspace_path', 'storage_objects', ['workspace_id', 'storage_backend', 'path_hash'], unique=True)
+    op.create_table('workspace_members',
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('user_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('role_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('member_status', sa.String(length=16), server_default=sa.text("'active'"), nullable=False),
+    sa.Column('joined_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.ForeignKeyConstraint(['role_id'], ['roles.role_id'], name='fk_workspace_members_role', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['user_id'], ['users.user_id'], name='fk_workspace_members_user', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_workspace_members_workspace', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('workspace_id', 'user_id'),
+    comment='Workspace 成员与角色'
+    )
+    op.create_index('idx_workspace_members_role', 'workspace_members', ['role_id'], unique=False)
+    op.create_index('idx_workspace_members_user', 'workspace_members', ['user_id', 'member_status'], unique=False)
+    op.create_table('data_resources',
+    sa.Column('resource_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('storage_object_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('owner_user_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('resource_name', sa.String(length=255), nullable=False),
+    sa.Column('visibility', sa.String(length=16), server_default=sa.text("'private'"), nullable=False),
+    sa.Column('status', sa.String(length=16), server_default=sa.text("'active'"), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('description', sa.String(length=1000), nullable=True),
+    sa.Column('schema_json', sa.JSON(), nullable=True, comment='字段结构、行数等可选元数据'),
+    sa.Column('deleted_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], name='fk_data_resources_owner', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['storage_object_id'], ['storage_objects.storage_object_id'], name='fk_data_resources_object', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_data_resources_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('resource_id'),
+    comment='数据资源'
+    )
+    op.create_index('idx_data_resources_owner', 'data_resources', ['owner_user_id', 'status'], unique=False)
+    op.create_index('idx_data_resources_workspace', 'data_resources', ['workspace_id', 'visibility', 'status'], unique=False)
+    op.create_index('uk_data_resources_object', 'data_resources', ['storage_object_id'], unique=True)
+    op.create_table('edit_sessions',
+    sa.Column('edit_session_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('storage_object_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('user_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('lock_key', sa.String(length=512), nullable=False),
+    sa.Column('lock_token_hash', sa.BINARY(length=32), nullable=False, comment='不保存原始 token'),
+    sa.Column('session_status', sa.String(length=16), server_default=sa.text("'active'"), nullable=False, comment='active/closed/expired/failed'),
+    sa.Column('started_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('last_heartbeat_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('expires_at', mysql.DATETIME(fsp=3), nullable=False),
+    sa.Column('runtime_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('jupyter_session_id', sa.String(length=255), nullable=True),
+    sa.Column('ended_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('end_reason', sa.String(length=64), nullable=True),
+    sa.ForeignKeyConstraint(['runtime_id'], ['runtime_instances.runtime_id'], name='fk_edit_sessions_runtime', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['storage_object_id'], ['storage_objects.storage_object_id'], name='fk_edit_sessions_object', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['user_id'], ['users.user_id'], name='fk_edit_sessions_user', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_edit_sessions_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('edit_session_id'),
+    comment='编辑会话与数据库租约；MySQL 为锁状态权威'
+    )
+    op.create_index('fk_edit_sessions_workspace', 'edit_sessions', ['workspace_id'], unique=False)
+    op.create_index('idx_edit_sessions_object', 'edit_sessions', ['storage_object_id', 'session_status', 'expires_at'], unique=False)
+    op.create_index('idx_edit_sessions_runtime', 'edit_sessions', ['runtime_id', 'session_status'], unique=False)
+    op.create_index('idx_edit_sessions_user', 'edit_sessions', ['user_id', 'session_status'], unique=False)
+    op.create_table('schedule_runs',
+    sa.Column('run_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('schedule_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workflow_version', mysql.INTEGER(), nullable=False),
+    sa.Column('trigger_type', sa.String(length=16), nullable=False, comment='manual/cron/api/retry'),
+    sa.Column('idempotency_key', sa.String(length=128), nullable=False),
+    sa.Column('run_status', sa.String(length=24), server_default=sa.text("'queued'"), nullable=False, comment='queued/running/succeeded/failed/cancelled/timed_out'),
+    sa.Column('state_version', mysql.INTEGER(), server_default=sa.text('0'), nullable=False, comment='乐观锁版本'),
+    sa.Column('schedule_snapshot', sa.JSON(), nullable=False, comment='执行时 DAG 快照'),
+    sa.Column('queued_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('triggered_by', sa.CHAR(length=26), nullable=True),
+    sa.Column('started_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('finished_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('duration_ms', mysql.BIGINT(), nullable=True),
+    sa.Column('error_code', sa.String(length=64), nullable=True),
+    sa.Column('error_message', sa.Text(), nullable=True),
+    sa.Column('logs_object_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('result_object_id', sa.CHAR(length=26), nullable=True),
+    sa.ForeignKeyConstraint(['logs_object_id'], ['storage_objects.storage_object_id'], name='fk_schedule_runs_logs', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['result_object_id'], ['storage_objects.storage_object_id'], name='fk_schedule_runs_result', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['schedule_id'], ['schedules.schedule_id'], name='fk_schedule_runs_schedule', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['triggered_by'], ['users.user_id'], name='fk_schedule_runs_user', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_schedule_runs_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('run_id'),
+    comment='调度运行'
+    )
+    op.create_index('fk_schedule_runs_logs', 'schedule_runs', ['logs_object_id'], unique=False)
+    op.create_index('fk_schedule_runs_result', 'schedule_runs', ['result_object_id'], unique=False)
+    op.create_index('fk_schedule_runs_user', 'schedule_runs', ['triggered_by'], unique=False)
+    op.create_index('idx_schedule_runs_schedule', 'schedule_runs', ['schedule_id', 'created_at'], unique=False)
+    op.create_index('idx_schedule_runs_status', 'schedule_runs', ['run_status', 'queued_at'], unique=False)
+    op.create_index('idx_schedule_runs_workspace_status', 'schedule_runs', ['workspace_id', 'run_status', 'queued_at'], unique=False)
+    op.create_index('uk_schedule_runs_idempotency', 'schedule_runs', ['idempotency_key'], unique=True)
+    op.create_table('scripts',
+    sa.Column('script_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('current_object_id', sa.CHAR(length=26), nullable=False, comment='当前工作副本'),
+    sa.Column('owner_user_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('script_name', sa.String(length=255), nullable=False),
+    sa.Column('script_type', sa.String(length=16), nullable=False, comment='python/notebook'),
+    sa.Column('visibility', sa.String(length=16), server_default=sa.text("'private'"), nullable=False),
+    sa.Column('status', sa.String(length=16), server_default=sa.text("'active'"), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('deleted_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.ForeignKeyConstraint(['current_object_id'], ['storage_objects.storage_object_id'], name='fk_scripts_current_object', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], name='fk_scripts_owner', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_scripts_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('script_id'),
+    comment='可执行 Python/Notebook 脚本'
+    )
+    op.create_index('idx_scripts_owner', 'scripts', ['owner_user_id', 'status'], unique=False)
+    op.create_index('idx_scripts_workspace', 'scripts', ['workspace_id', 'script_type', 'visibility', 'status'], unique=False)
+    op.create_index('uk_scripts_current_object', 'scripts', ['current_object_id'], unique=True)
+    op.create_table('upload_sessions',
+    sa.Column('upload_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('user_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('idempotency_key', sa.String(length=128), nullable=False),
+    sa.Column('bucket_name', sa.String(length=128), nullable=False),
+    sa.Column('object_key', sa.String(length=1024), nullable=False),
+    sa.Column('object_key_hash', sa.BINARY(length=32), nullable=False),
+    sa.Column('upload_status', sa.String(length=24), server_default=sa.text("'created'"), nullable=False, comment='created/uploading/completed/expired/aborted/failed'),
+    sa.Column('expires_at', mysql.DATETIME(fsp=3), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('multipart_upload_id', sa.String(length=255), nullable=True),
+    sa.Column('expected_size_bytes', mysql.BIGINT(), nullable=True),
+    sa.Column('expected_hash', sa.CHAR(length=64), nullable=True),
+    sa.Column('content_type', sa.String(length=255), nullable=True),
+    sa.Column('storage_object_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('completed_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.ForeignKeyConstraint(['storage_object_id'], ['storage_objects.storage_object_id'], name='fk_upload_sessions_storage_object', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['user_id'], ['users.user_id'], name='fk_upload_sessions_user', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_upload_sessions_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('upload_id'),
+    comment='RustFS 预签名上传会话；URL 本身不持久化'
+    )
+    op.create_index('fk_upload_sessions_storage_object', 'upload_sessions', ['storage_object_id'], unique=False)
+    op.create_index('fk_upload_sessions_user', 'upload_sessions', ['user_id'], unique=False)
+    op.create_index('idx_upload_sessions_expiry', 'upload_sessions', ['upload_status', 'expires_at'], unique=False)
+    op.create_index('idx_upload_sessions_object_key', 'upload_sessions', ['bucket_name', 'object_key_hash'], unique=False)
+    op.create_index('idx_upload_sessions_workspace', 'upload_sessions', ['workspace_id', 'user_id', 'created_at'], unique=False)
+    op.create_index('uk_upload_sessions_idempotency', 'upload_sessions', ['idempotency_key'], unique=True)
+    op.create_table('workspace_operations',
+    sa.Column('operation_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('operation_type', sa.String(length=24), nullable=False, comment='open/close/mount/unmount/start/stop/restart/recycle'),
+    sa.Column('operation_status', sa.String(length=24), server_default=sa.text("'pending'"), nullable=False, comment='pending/running/succeeded/failed/cancelled'),
+    sa.Column('state_version', mysql.INTEGER(), server_default=sa.text('0'), nullable=False, comment='乐观锁版本'),
+    sa.Column('requested_by', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('runtime_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('request_id', sa.String(length=128), nullable=True),
+    sa.Column('started_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('finished_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('error_code', sa.String(length=64), nullable=True),
+    sa.Column('error_message', sa.Text(), nullable=True),
+    sa.ForeignKeyConstraint(['requested_by'], ['users.user_id'], name='fk_workspace_operations_user', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['runtime_id'], ['runtime_instances.runtime_id'], name='fk_workspace_operations_runtime', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_workspace_operations_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('operation_id'),
+    comment='无状态 Backend 的 Workspace/Jupyter 异步操作记录'
+    )
+    op.create_index('fk_workspace_operations_user', 'workspace_operations', ['requested_by'], unique=False)
+    op.create_index('idx_workspace_operations_runtime', 'workspace_operations', ['runtime_id', 'created_at'], unique=False)
+    op.create_index('idx_workspace_operations_workspace', 'workspace_operations', ['workspace_id', 'operation_status', 'created_at'], unique=False)
+    op.create_index('uk_workspace_operations_request', 'workspace_operations', ['request_id'], unique=True)
+    op.create_table('notebook_snapshots',
+    sa.Column('snapshot_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('script_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('source_object_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('artifact_object_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('snapshot_name', sa.String(length=255), nullable=False),
+    sa.Column('content_hash', sa.CHAR(length=64), nullable=False),
+    sa.Column('outputs_stripped', mysql.TINYINT(display_width=1), server_default=sa.text('1'), nullable=False),
+    sa.Column('created_by', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('description', sa.String(length=1000), nullable=True),
+    sa.ForeignKeyConstraint(['artifact_object_id'], ['storage_objects.storage_object_id'], name='fk_snapshots_artifact_object', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['created_by'], ['users.user_id'], name='fk_snapshots_created_by', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['script_id'], ['scripts.script_id'], name='fk_snapshots_script', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['source_object_id'], ['storage_objects.storage_object_id'], name='fk_snapshots_source_object', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_snapshots_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('snapshot_id'),
+    comment='Notebook 开发快照，append-only'
+    )
+    op.create_index('fk_snapshots_created_by', 'notebook_snapshots', ['created_by'], unique=False)
+    op.create_index('fk_snapshots_source_object', 'notebook_snapshots', ['source_object_id'], unique=False)
+    op.create_index('idx_snapshots_workspace_created', 'notebook_snapshots', ['workspace_id', 'created_at'], unique=False)
+    op.create_index('uk_snapshots_artifact', 'notebook_snapshots', ['artifact_object_id'], unique=True)
+    op.create_index('uk_snapshots_script_hash', 'notebook_snapshots', ['script_id', 'content_hash'], unique=True)
+    op.create_table('versions',
+    sa.Column('versions_id', sa.CHAR(length=26), nullable=False, comment='稳定版本唯一 ID'),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('script_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('source_object_id', sa.CHAR(length=26), nullable=False, comment='发布时的源对象'),
+    sa.Column('artifact_object_id', sa.CHAR(length=26), nullable=False, comment='RustFS 不可变版本制品'),
+    sa.Column('version_no', mysql.INTEGER(), nullable=False),
+    sa.Column('version_label', sa.String(length=32), nullable=False, comment='例如 v1.0'),
+    sa.Column('source_path', sa.String(length=1024), nullable=False, comment='发布时路径快照'),
+    sa.Column('artifact_path', sa.String(length=1500), nullable=False),
+    sa.Column('content_hash', sa.CHAR(length=64), nullable=False),
+    sa.Column('file_size_bytes', mysql.BIGINT(), server_default=sa.text('0'), nullable=False),
+    sa.Column('visibility', sa.String(length=16), server_default=sa.text("'private'"), nullable=False),
+    sa.Column('created_by', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('release_note', sa.String(length=1000), nullable=True),
+    sa.ForeignKeyConstraint(['artifact_object_id'], ['storage_objects.storage_object_id'], name='fk_versions_artifact_object', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['created_by'], ['users.user_id'], name='fk_versions_created_by', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['script_id'], ['scripts.script_id'], name='fk_versions_script', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['source_object_id'], ['storage_objects.storage_object_id'], name='fk_versions_source_object', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_versions_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('versions_id'),
+    comment='不可变稳定版本；调度节点必须引用 versions_id'
+    )
+    op.create_index('fk_versions_source_object', 'versions', ['source_object_id'], unique=False)
+    op.create_index('idx_versions_creator', 'versions', ['created_by', 'created_at'], unique=False)
+    op.create_index('idx_versions_workspace_created', 'versions', ['workspace_id', 'created_at'], unique=False)
+    op.create_index('uk_versions_artifact', 'versions', ['artifact_object_id'], unique=True)
+    op.create_index('uk_versions_script_hash', 'versions', ['script_id', 'content_hash'], unique=True)
+    op.create_index('uk_versions_script_no', 'versions', ['script_id', 'version_no'], unique=True)
+    op.create_table('experiments',
+    sa.Column('experiment_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('workspace_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('owner_user_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('experiment_name', sa.String(length=255), nullable=False),
+    sa.Column('source_type', sa.String(length=24), nullable=False, comment='python/notebook/schedule/rerun'),
+    sa.Column('experiment_status', sa.String(length=24), server_default=sa.text("'queued'"), nullable=False),
+    sa.Column('state_version', mysql.INTEGER(), server_default=sa.text('0'), nullable=False, comment='乐观锁版本'),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('script_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('versions_id', sa.CHAR(length=26), nullable=True, comment='工作副本运行时可为空'),
+    sa.Column('schedule_run_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('parent_experiment_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('parameters_json', sa.JSON(), nullable=True),
+    sa.Column('environment_json', sa.JSON(), nullable=True),
+    sa.Column('result_summary', sa.String(length=2000), nullable=True),
+    sa.Column('logs_object_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('result_object_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('started_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('finished_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('duration_ms', mysql.BIGINT(), nullable=True),
+    sa.Column('deleted_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.ForeignKeyConstraint(['logs_object_id'], ['storage_objects.storage_object_id'], name='fk_experiments_logs', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['owner_user_id'], ['users.user_id'], name='fk_experiments_owner', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['parent_experiment_id'], ['experiments.experiment_id'], name='fk_experiments_parent', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['result_object_id'], ['storage_objects.storage_object_id'], name='fk_experiments_result', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['schedule_run_id'], ['schedule_runs.run_id'], name='fk_experiments_schedule_run', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['script_id'], ['scripts.script_id'], name='fk_experiments_script', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['versions_id'], ['versions.versions_id'], name='fk_experiments_version', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['workspace_id'], ['workspaces.workspace_id'], name='fk_experiments_workspace', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('experiment_id'),
+    comment='实验记录'
+    )
+    op.create_index('fk_experiments_logs', 'experiments', ['logs_object_id'], unique=False)
+    op.create_index('fk_experiments_parent', 'experiments', ['parent_experiment_id'], unique=False)
+    op.create_index('fk_experiments_result', 'experiments', ['result_object_id'], unique=False)
+    op.create_index('fk_experiments_script', 'experiments', ['script_id'], unique=False)
+    op.create_index('idx_experiments_owner', 'experiments', ['owner_user_id', 'created_at'], unique=False)
+    op.create_index('idx_experiments_schedule_run', 'experiments', ['schedule_run_id'], unique=False)
+    op.create_index('idx_experiments_version', 'experiments', ['versions_id'], unique=False)
+    op.create_index('idx_experiments_workspace', 'experiments', ['workspace_id', 'experiment_status', 'created_at'], unique=False)
+    op.create_table('schedule_nodes',
+    sa.Column('node_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('schedule_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('node_key', sa.String(length=64), nullable=False, comment='画布内稳定标识'),
+    sa.Column('node_name', sa.String(length=255), nullable=False),
+    sa.Column('versions_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('timeout_seconds', mysql.INTEGER(), server_default=sa.text('600'), nullable=False),
+    sa.Column('retry_count', mysql.INTEGER(), server_default=sa.text('0'), nullable=False),
+    sa.Column('retry_interval_sec', mysql.INTEGER(), server_default=sa.text('5'), nullable=False),
+    sa.Column('position_x', sa.DECIMAL(precision=10, scale=2), server_default=sa.text('0.00'), nullable=False),
+    sa.Column('position_y', sa.DECIMAL(precision=10, scale=2), server_default=sa.text('0.00'), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('updated_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('arguments_json', sa.JSON(), nullable=True),
+    sa.Column('env_refs_json', sa.JSON(), nullable=True, comment='只存密钥引用，不存明文密钥'),
+    sa.ForeignKeyConstraint(['schedule_id'], ['schedules.schedule_id'], name='fk_schedule_nodes_schedule', ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['versions_id'], ['versions.versions_id'], name='fk_schedule_nodes_version', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('node_id'),
+    comment='DAG 节点，必须引用稳定版本'
+    )
+    op.create_index('idx_schedule_nodes_version', 'schedule_nodes', ['versions_id'], unique=False)
+    op.create_index('uk_schedule_nodes_key', 'schedule_nodes', ['schedule_id', 'node_key'], unique=True)
+    op.create_table('experiment_metrics',
+    sa.Column('metric_id', mysql.BIGINT(), nullable=False),
+    sa.Column('experiment_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('metric_name', sa.String(length=128), nullable=False),
+    sa.Column('recorded_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('metric_value', sa.Double(asdecimal=True), nullable=True),
+    sa.Column('metric_text', sa.String(length=1000), nullable=True),
+    sa.Column('step_no', sa.BigInteger(), nullable=True),
+    sa.ForeignKeyConstraint(['experiment_id'], ['experiments.experiment_id'], name='fk_experiment_metrics_experiment', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('metric_id'),
+    comment='实验指标，支持筛选和曲线'
+    )
+    op.create_index('idx_experiment_metrics_lookup', 'experiment_metrics', ['experiment_id', 'metric_name', 'step_no'], unique=False)
+    op.create_table('experiment_resources',
+    sa.Column('experiment_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('resource_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('resource_role', sa.String(length=16), server_default=sa.text("'input'"), nullable=False, comment='input/output'),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.ForeignKeyConstraint(['experiment_id'], ['experiments.experiment_id'], name='fk_experiment_resources_experiment', ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['resource_id'], ['data_resources.resource_id'], name='fk_experiment_resources_resource', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('experiment_id', 'resource_id', 'resource_role'),
+    comment='实验与数据资源'
+    )
+    op.create_index('fk_experiment_resources_resource', 'experiment_resources', ['resource_id'], unique=False)
+    op.create_table('schedule_edges',
+    sa.Column('edge_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('schedule_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('source_node_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('target_node_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('condition_expr', sa.String(length=1000), nullable=True),
+    sa.ForeignKeyConstraint(['schedule_id'], ['schedules.schedule_id'], name='fk_schedule_edges_schedule', ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['source_node_id'], ['schedule_nodes.node_id'], name='fk_schedule_edges_source', ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['target_node_id'], ['schedule_nodes.node_id'], name='fk_schedule_edges_target', ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('edge_id'),
+    comment='DAG 有向边'
+    )
+    op.create_index('fk_schedule_edges_source', 'schedule_edges', ['source_node_id'], unique=False)
+    op.create_index('idx_schedule_edges_target', 'schedule_edges', ['target_node_id'], unique=False)
+    op.create_index('uk_schedule_edges_pair', 'schedule_edges', ['schedule_id', 'source_node_id', 'target_node_id'], unique=True)
+    op.create_table('schedule_node_runs',
+    sa.Column('node_run_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('run_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('node_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('versions_id', sa.CHAR(length=26), nullable=False),
+    sa.Column('attempt_no', mysql.INTEGER(), server_default=sa.text('1'), nullable=False),
+    sa.Column('node_status', sa.String(length=24), server_default=sa.text("'queued'"), nullable=False, comment='queued/running/succeeded/failed/skipped/cancelled/timed_out'),
+    sa.Column('state_version', mysql.INTEGER(), server_default=sa.text('0'), nullable=False, comment='乐观锁版本'),
+    sa.Column('created_at', mysql.DATETIME(fsp=3), server_default=sa.text('CURRENT_TIMESTAMP(3)'), nullable=False),
+    sa.Column('started_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('finished_at', mysql.DATETIME(fsp=3), nullable=True),
+    sa.Column('duration_ms', mysql.BIGINT(), nullable=True),
+    sa.Column('exit_code', sa.Integer(), nullable=True),
+    sa.Column('message', sa.String(length=2000), nullable=True),
+    sa.Column('metrics_json', sa.JSON(), nullable=True),
+    sa.Column('logs_object_id', sa.CHAR(length=26), nullable=True),
+    sa.Column('result_object_id', sa.CHAR(length=26), nullable=True),
+    sa.ForeignKeyConstraint(['logs_object_id'], ['storage_objects.storage_object_id'], name='fk_node_runs_logs', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['node_id'], ['schedule_nodes.node_id'], name='fk_node_runs_node', ondelete='RESTRICT'),
+    sa.ForeignKeyConstraint(['result_object_id'], ['storage_objects.storage_object_id'], name='fk_node_runs_result', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['run_id'], ['schedule_runs.run_id'], name='fk_node_runs_run', ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['versions_id'], ['versions.versions_id'], name='fk_node_runs_version', ondelete='RESTRICT'),
+    sa.PrimaryKeyConstraint('node_run_id'),
+    comment='调度节点运行与重试'
+    )
+    op.create_index('fk_node_runs_logs', 'schedule_node_runs', ['logs_object_id'], unique=False)
+    op.create_index('fk_node_runs_node', 'schedule_node_runs', ['node_id'], unique=False)
+    op.create_index('fk_node_runs_result', 'schedule_node_runs', ['result_object_id'], unique=False)
+    op.create_index('idx_node_runs_status', 'schedule_node_runs', ['run_id', 'node_status'], unique=False)
+    op.create_index('idx_node_runs_version', 'schedule_node_runs', ['versions_id'], unique=False)
+    op.create_index('uk_node_runs_attempt', 'schedule_node_runs', ['run_id', 'node_id', 'attempt_no'], unique=True)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # MySQL removes indexes with their table. Dropping FK-supporting indexes
+    # explicitly first raises error 1553, so tables are removed in reverse
+    # dependency order and MySQL performs the index cleanup.
+    op.drop_table('schedule_node_runs')
+    op.drop_table('schedule_edges')
+    op.drop_table('experiment_resources')
+    op.drop_table('experiment_metrics')
+    op.drop_table('schedule_nodes')
+    op.drop_table('experiments')
+    op.drop_table('versions')
+    op.drop_table('notebook_snapshots')
+    op.drop_table('workspace_operations')
+    op.drop_table('upload_sessions')
+    op.drop_table('scripts')
+    op.drop_table('schedule_runs')
+    op.drop_table('edit_sessions')
+    op.drop_table('data_resources')
+    op.drop_table('workspace_members')
+    op.drop_table('storage_objects')
+    op.drop_table('schedules')
+    op.drop_table('runtime_instances')
+    op.drop_table('audit_logs')
+    op.drop_table('workspaces')
+    op.drop_table('users')
+    op.drop_table('role_permissions')
+    op.drop_table('roles')
+    op.drop_table('permissions')
+    op.drop_table('outbox_events')
+    op.drop_table('consumer_inbox')
+    # ### end Alembic commands ###
diff --git a/migrations/versions/20260728_0002_demo_workspaces_users.py b/migrations/versions/20260728_0002_demo_workspaces_users.py
new file mode 100644
index 0000000..ec15f48
--- /dev/null
+++ b/migrations/versions/20260728_0002_demo_workspaces_users.py
@@ -0,0 +1,112 @@
+"""demo workspaces and users
+
+Revision ID: 20260728_0002
+Revises: 20260724_0001
+Create Date: 2026-07-28
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+
+
+revision: str = "20260728_0002"
+down_revision: str | Sequence[str] | None = "20260724_0001"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+ADMIN_ROLE = "0000000000HNQN4KM476QNKW1C"
+DEVELOPER_ROLE = "00000000005RCQ4GPGBK3WZYMM"
+MODEL_WORKSPACE = "00000000000BM630VT9ARVFZPC"
+RISK_WORKSPACE = "0000000000AE0NC0V5T424KK86"
+ZHANG = "0000000000RF6FG1SDBXG59S13"
+LI = "0000000000H2QYCGPCWQM1JSGS"
+WANG = "0000000000RWG40ESZPGJT629J"
+ZHAO = "00000000004CQV7WASJA6N6FW4"
+
+
+def upgrade() -> None:
+    op.execute(
+        f"""
+        INSERT INTO roles
+            (role_id, role_code, role_name, role_scope, is_builtin)
+        VALUES
+            ('{ADMIN_ROLE}', 'admin', '管理员', 'workspace', 1),
+            ('{DEVELOPER_ROLE}', 'developer', '开发人员', 'workspace', 1)
+        ON DUPLICATE KEY UPDATE
+            role_name = VALUES(role_name),
+            role_scope = VALUES(role_scope)
+        """
+    )
+    op.execute(
+        f"""
+        INSERT INTO users
+            (user_id, username, display_name, password_hash, status, email)
+        VALUES
+            ('{ZHANG}', 'admin-zhang', '张三', 'demo-login-disabled', 'active',
+             'zhangsan@example.local'),
+            ('{LI}', 'admin-li', '李四', 'demo-login-disabled', 'active',
+             'lisi@example.local'),
+            ('{WANG}', 'dev-wang', '王五', 'demo-login-disabled', 'active',
+             'wangwu@example.local'),
+            ('{ZHAO}', 'dev-zhao', '赵六', 'demo-login-disabled', 'active',
+             'zhaoliu@example.local')
+        ON DUPLICATE KEY UPDATE
+            username = VALUES(username),
+            display_name = VALUES(display_name),
+            status = 'active',
+            email = VALUES(email)
+        """
+    )
+    op.execute(
+        f"""
+        INSERT INTO workspaces
+            (workspace_id, workspace_code, workspace_name, active_root_uri,
+             quota_bytes, used_bytes, status, created_by, description,
+             artifact_bucket, artifact_prefix)
+        VALUES
+            ('{MODEL_WORKSPACE}', 'model-dev', '模型开发 Workspace',
+             'file:///workspace/workspaces/model-dev', 0, 0, 'active',
+             '{ZHANG}', '模型开发与脚本调度', 'model-platform',
+             'workspaces/model-dev'),
+            ('{RISK_WORKSPACE}', 'risk-validation', '风险验证 Workspace',
+             'file:///workspace/workspaces/risk-validation', 0, 0, 'active',
+             '{LI}', '风险模型验证与批处理', 'model-platform',
+             'workspaces/risk-validation')
+        ON DUPLICATE KEY UPDATE
+            workspace_name = VALUES(workspace_name),
+            active_root_uri = VALUES(active_root_uri),
+            status = 'active',
+            description = VALUES(description)
+        """
+    )
+    values = []
+    for workspace_id in (MODEL_WORKSPACE, RISK_WORKSPACE):
+        for user_id, role_id in (
+            (ZHANG, ADMIN_ROLE),
+            (LI, ADMIN_ROLE),
+            (WANG, DEVELOPER_ROLE),
+            (ZHAO, DEVELOPER_ROLE),
+        ):
+            values.append(
+                f"('{workspace_id}', '{user_id}', '{role_id}', 'active')"
+            )
+    op.execute(
+        """
+        INSERT INTO workspace_members
+            (workspace_id, user_id, role_id, member_status)
+        VALUES
+        """
+        + ",\n".join(values)
+        + """
+        ON DUPLICATE KEY UPDATE
+            role_id = VALUES(role_id),
+            member_status = 'active'
+        """
+    )
+
+
+def downgrade() -> None:
+    # 演示身份可能已产生业务数据，降级时保留，避免破坏外键引用。
+    pass
diff --git a/migrations/versions/20260728_0003_schedule_artifact_visibility.py b/migrations/versions/20260728_0003_schedule_artifact_visibility.py
new file mode 100644
index 0000000..0cb4f09
--- /dev/null
+++ b/migrations/versions/20260728_0003_schedule_artifact_visibility.py
@@ -0,0 +1,41 @@
+"""decouple schedule artifact visibility from version history
+
+Revision ID: 20260728_0003
+Revises: 20260728_0002
+Create Date: 2026-07-28
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+
+revision: str = "20260728_0003"
+down_revision: str | Sequence[str] | None = "20260728_0002"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "versions",
+        sa.Column(
+            "schedule_hidden_at",
+            mysql.DATETIME(fsp=3),
+            nullable=True,
+            comment="从调度稳定版本列表移除的时间；不影响版本和运行历史",
+        ),
+    )
+    op.create_index(
+        "idx_versions_schedule_visible",
+        "versions",
+        ["workspace_id", "schedule_hidden_at", "created_at"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("idx_versions_schedule_visible", table_name="versions")
+    op.drop_column("versions", "schedule_hidden_at")
diff --git a/migrations/versions/20260730_0004_remove_redis_lock_name.py b/migrations/versions/20260730_0004_remove_redis_lock_name.py
new file mode 100644
index 0000000..3b1b3f0
--- /dev/null
+++ b/migrations/versions/20260730_0004_remove_redis_lock_name.py
@@ -0,0 +1,49 @@
+"""remove Redis-specific lock column naming
+
+Revision ID: 20260730_0004
+Revises: 20260728_0003
+Create Date: 2026-07-30
+"""
+
+from collections.abc import Sequence
+
+from alembic import context, op
+import sqlalchemy as sa
+
+revision: str = "20260730_0004"
+down_revision: str | None = "20260728_0003"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def _column_names() -> set[str]:
+    inspector = sa.inspect(op.get_bind())
+    return {item["name"] for item in inspector.get_columns("edit_sessions")}
+
+
+def upgrade() -> None:
+    if context.is_offline_mode():
+        return
+    columns = _column_names()
+    if "redis_lock_key" in columns and "lock_key" not in columns:
+        op.alter_column(
+            "edit_sessions",
+            "redis_lock_key",
+            new_column_name="lock_key",
+            existing_type=sa.String(length=512),
+            existing_nullable=False,
+        )
+
+
+def downgrade() -> None:
+    if context.is_offline_mode():
+        return
+    columns = _column_names()
+    if "lock_key" in columns and "redis_lock_key" not in columns:
+        op.alter_column(
+            "edit_sessions",
+            "lock_key",
+            new_column_name="redis_lock_key",
+            existing_type=sa.String(length=512),
+            existing_nullable=False,
+        )
diff --git a/migrations/versions/README.md b/migrations/versions/README.md
new file mode 100644
index 0000000..28f2e12
--- /dev/null
+++ b/migrations/versions/README.md
@@ -0,0 +1,7 @@
+# Migration Revisions
+
+该目录只保存经过评审和验证的 Alembic 迁移版本。
+
+- 已发布迁移不得直接修改。
+- 新迁移必须同时提供可执行的 `upgrade()` 和 `downgrade()`。
+- 自动生成后必须检查数据类型、约束、索引和执行顺序。
diff --git a/nginx/Dockerfile b/nginx/Dockerfile
new file mode 100644
index 0000000..8164a0c
--- /dev/null
+++ b/nginx/Dockerfile
@@ -0,0 +1,12 @@
+FROM node:22-alpine AS frontend-build
+WORKDIR /app
+RUN corepack enable && corepack prepare pnpm@10.15.1 --activate
+COPY frontend/package.json frontend/pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+COPY frontend/ ./
+RUN pnpm build
+
+FROM nginx:1.27-alpine
+COPY nginx/default.conf.template /etc/nginx/templates/default.conf.template
+COPY --from=frontend-build /app/build/client /usr/share/nginx/html
+EXPOSE 80
diff --git a/nginx/default.conf.template b/nginx/default.conf.template
new file mode 100644
index 0000000..f03de3a
--- /dev/null
+++ b/nginx/default.conf.template
@@ -0,0 +1,83 @@
+map $http_upgrade $connection_upgrade {
+    default upgrade;
+    '' close;
+}
+
+upstream backend_upstream {
+    server backend:8000;
+}
+
+upstream runtime_upstream {
+    server runtime:8000;
+}
+
+upstream jupyter_upstream {
+    server jupyter:8888;
+}
+
+server {
+    listen 80;
+    server_name _;
+    client_max_body_size 100m;
+
+    location = /health {
+        default_type application/json;
+        return 200 '{"status":"ok","service":"gateway"}';
+    }
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    location /api/ {
+        proxy_pass http://backend_upstream;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Request-ID $request_id;
+    }
+
+    location = /_jupyter_auth {
+        internal;
+        proxy_pass http://runtime_upstream/internal/v1/jupyter/authorize;
+        proxy_pass_request_body off;
+        proxy_set_header Content-Length "";
+        proxy_set_header Cookie $http_cookie;
+        proxy_set_header X-Original-URI $request_uri;
+        proxy_set_header X-Request-ID $request_id;
+        proxy_set_header X-Service-Token "${INTERNAL_SERVICE_TOKEN}";
+    }
+
+    location = /jupyter {
+        return 308 /jupyter/;
+    }
+
+    location ^~ /jupyter/ {
+        auth_request /_jupyter_auth;
+        auth_request_set $jupyter_authorization
+            $upstream_http_x_jupyter_authorization;
+
+        proxy_pass http://jupyter_upstream;
+        proxy_http_version 1.1;
+        proxy_set_header Authorization $jupyter_authorization;
+        proxy_set_header Host $http_host;
+        proxy_set_header Origin $http_origin;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Prefix /jupyter;
+        proxy_set_header X-Request-ID $request_id;
+        proxy_buffering off;
+        proxy_request_buffering off;
+        proxy_read_timeout 3600s;
+        proxy_send_timeout 3600s;
+        proxy_redirect off;
+    }
+}
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..5e179e8
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,13 @@
+[project]
+name = "model-platform"
+version = "0.1.0"
+requires-python = ">=3.12"
+dependencies = []
+
+[tool.uv.workspace]
+members = [
+    "backend",
+    "runtime",
+    "common",
+    "schedule",
+]
diff --git a/runtime/.gitignore b/runtime/.gitignore
new file mode 100644
index 0000000..505a3b1
--- /dev/null
+++ b/runtime/.gitignore
@@ -0,0 +1,10 @@
+# Python-generated files
+__pycache__/
+*.py[oc]
+build/
+dist/
+wheels/
+*.egg-info
+
+# Virtual environments
+.venv
diff --git a/runtime/.python-version b/runtime/.python-version
new file mode 100644
index 0000000..e4fba21
--- /dev/null
+++ b/runtime/.python-version
@@ -0,0 +1 @@
+3.12
diff --git a/runtime/Dockerfile b/runtime/Dockerfile
new file mode 100644
index 0000000..a412b64
--- /dev/null
+++ b/runtime/Dockerfile
@@ -0,0 +1,12 @@
+FROM python:3.12-slim-bookworm
+
+ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1 PYTHONPATH=/app
+WORKDIR /app
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
+COPY common ./common
+COPY contracts ./contracts
+COPY runtime ./runtime
+RUN uv pip install --system ./common ./runtime
+
+EXPOSE 8000
+CMD ["uvicorn", "runtime.main:app", "--host", "0.0.0.0", "--port", "8000"]
diff --git a/runtime/README.md b/runtime/README.md
new file mode 100644
index 0000000..c753aa7
--- /dev/null
+++ b/runtime/README.md
@@ -0,0 +1,11 @@
+# Runtime
+
+独立 Runtime/Jupyter 管理服务：
+
+- 使用共享 Jupyter Server；
+- 在 MySQL 中维护 Runtime 实例和编辑会话租约；
+- 创建、心跳和释放文件编辑锁；
+- 创建短期 Jupyter 访问票据；
+- 为 Nginx `auth_request` 校验票据并注入内部 Jupyter Token。
+
+当前简化部署要求 Runtime 单副本运行。
diff --git a/runtime/pyproject.toml b/runtime/pyproject.toml
new file mode 100644
index 0000000..a385773
--- /dev/null
+++ b/runtime/pyproject.toml
@@ -0,0 +1,20 @@
+[project]
+name = "runtime"
+version = "0.2.0"
+requires-python = ">=3.12"
+dependencies = [
+    "common",
+    "fastapi==0.116.1",
+    "uvicorn[standard]==0.35.0",
+    "httpx==0.28.1",
+]
+
+[tool.uv.sources]
+common = { path = "../common" }
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/runtime"]
diff --git a/runtime/src/runtime/__init__.py b/runtime/src/runtime/__init__.py
new file mode 100644
index 0000000..da2d535
--- /dev/null
+++ b/runtime/src/runtime/__init__.py
@@ -0,0 +1 @@
+"""Runtime Manager application."""
diff --git a/runtime/src/runtime/main.py b/runtime/src/runtime/main.py
new file mode 100644
index 0000000..507800a
--- /dev/null
+++ b/runtime/src/runtime/main.py
@@ -0,0 +1,1026 @@
+from __future__ import annotations
+
+import asyncio
+import hashlib
+import logging
+import os
+import secrets
+from contextlib import asynccontextmanager
+from datetime import UTC, datetime, timedelta
+from pathlib import PurePosixPath
+from typing import Any, AsyncIterator
+from urllib.parse import quote, unquote, urlsplit
+
+import httpx
+from fastapi import (
+    Cookie,
+    Depends,
+    Header,
+    HTTPException,
+    Query,
+    Request,
+    Response,
+    status,
+)
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db import create_database_engine, create_session_factory
+from common.db.models import (
+    EditSessions,
+    Roles,
+    RuntimeInstances,
+    StorageObjects,
+    Users,
+    WorkspaceMembers,
+    Workspaces,
+)
+from common.ids import new_ulid
+from common.service_app import create_service_app
+from runtime.providers.shared_jupyter import (
+    RuntimeProviderError,
+    SharedJupyterAdapter,
+)
+from runtime.runtime_lifecycle import (
+    RuntimeLifecycle,
+    runtime_payload,
+)
+from runtime.schemas import (
+    AcquireFileLockRequest,
+    CreateRuntimeSessionApiRequest,
+    EnsureRuntimeApiRequest,
+    FileLockTokenRequest,
+    RuntimeIdentityRequest,
+    StopRuntimeApiRequest,
+)
+
+logger = logging.getLogger(__name__)
+
+
+def utcnow() -> datetime:
+    return datetime.now(UTC).replace(tzinfo=None)
+
+
+def utc_iso(value: datetime) -> str:
+    return value.replace(tzinfo=UTC).isoformat().replace("+00:00", "Z")
+
+
+def token_digest(value: str) -> bytes:
+    return hashlib.sha256(value.encode("utf-8")).digest()
+
+
+def jupyter_ticket_key(raw_ticket: str) -> str:
+    digest = hashlib.sha256(raw_ticket.encode("utf-8")).hexdigest()
+    return f"jupyter:access-ticket:{digest}"
+
+
+def jupyter_url(workspace_code: str, relative_path: str) -> str:
+    relative = PurePosixPath(relative_path.replace("\\", "/"))
+    if (
+        relative.is_absolute()
+        or not relative.parts
+        or any(part in {"", ".", ".."} for part in relative.parts)
+    ):
+        raise lock_error(
+            status.HTTP_409_CONFLICT,
+            "JUPYTER_PATH_INVALID",
+            "Notebook 路径无效",
+        )
+    path = PurePosixPath(workspace_code, *relative.parts).as_posix()
+    encoded_path = quote(path, safe="/")
+    if relative.suffix.lower() == ".ipynb":
+        return f"/jupyter/notebooks/{encoded_path}"
+    return f"/jupyter/lab/tree/{encoded_path}"
+
+
+def lock_error(
+    status_code: int,
+    code: str,
+    message: str,
+    *,
+    retryable: bool = False,
+    details: dict[str, Any] | None = None,
+) -> HTTPException:
+    return HTTPException(
+        status_code,
+        {
+            "code": code,
+            "message": message,
+            "retryable": retryable,
+            "details": details or {},
+        },
+    )
+
+
+def verify_internal_service(
+    x_service_token: str = Header(alias="X-Service-Token"),
+) -> None:
+    expected = os.environ.get("INTERNAL_SERVICE_TOKEN", "")
+    if not expected or not secrets.compare_digest(expected, x_service_token):
+        raise HTTPException(
+            status.HTTP_401_UNAUTHORIZED,
+            "invalid internal service identity",
+        )
+
+
+@asynccontextmanager
+async def lifespan(app: Any) -> AsyncIterator[None]:
+    engine = create_database_engine(os.environ["DATABASE_URL"])
+    app.state.session_factory = create_session_factory(engine)
+    app.state.file_lock_ttl_ms = int(
+        os.getenv("FILE_LOCK_TTL_MS", "45000")
+    )
+    app.state.file_lock_enabled = (
+        os.getenv("FILE_LOCK_ENABLED", "false").strip().lower()
+        not in {"0", "false", "no", "off"}
+    )
+    if not 5_000 <= app.state.file_lock_ttl_ms <= 300_000:
+        raise RuntimeError("FILE_LOCK_TTL_MS must be between 5000 and 300000")
+    app.state.jupyter_ticket_ttl_seconds = int(
+        os.getenv("JUPYTER_TICKET_TTL_SECONDS", "60")
+    )
+    if not 30 <= app.state.jupyter_ticket_ttl_seconds <= 300:
+        raise RuntimeError(
+            "JUPYTER_TICKET_TTL_SECONDS must be between 30 and 300"
+        )
+    app.state.jupyter_tickets: dict[str, dict[str, Any]] = {}
+    app.state.ticket_lock = asyncio.Lock()
+    jupyter_internal_url = os.getenv(
+        "JUPYTER_INTERNAL_URL",
+        "http://jupyter:8888/jupyter/",
+    ).rstrip("/") + "/"
+    app.state.jupyter_http_client = httpx.AsyncClient(
+        base_url=jupyter_internal_url,
+        timeout=httpx.Timeout(15.0),
+        headers={
+            "Authorization": f"Bearer {os.environ['JUPYTER_TOKEN']}",
+        },
+    )
+    app.state.jupyter_token = os.environ["JUPYTER_TOKEN"]
+    adapter = SharedJupyterAdapter(
+        app.state.jupyter_http_client,
+        internal_url=jupyter_internal_url,
+        proxy_base_path=os.getenv(
+            "JUPYTER_PROXY_BASE_PATH",
+            "/jupyter/",
+        ),
+    )
+    app.state.runtime_lifecycle = RuntimeLifecycle(
+        adapter,
+        lease_seconds=int(os.getenv("RUNTIME_LEASE_SECONDS", "1800")),
+    )
+    cleanup_task = asyncio.create_task(
+        reconcile_expired_edit_sessions(app)
+    )
+    try:
+        yield
+    finally:
+        cleanup_task.cancel()
+        try:
+            await cleanup_task
+        except asyncio.CancelledError:
+            pass
+        await app.state.jupyter_http_client.aclose()
+        await engine.dispose()
+
+
+app = create_service_app(
+    os.getenv("SERVICE_NAME", "runtime-manager"),
+    lifespan=lifespan,
+)
+
+
+async def active_member(
+    session: AsyncSession,
+    *,
+    workspace_id: str,
+    user_id: str,
+) -> tuple[Users, Roles, Workspaces]:
+    statement = (
+        select(Users, Roles, Workspaces)
+        .join(
+            WorkspaceMembers,
+            WorkspaceMembers.user_id == Users.user_id,
+        )
+        .join(Roles, Roles.role_id == WorkspaceMembers.role_id)
+        .join(
+            Workspaces,
+            Workspaces.workspace_id == WorkspaceMembers.workspace_id,
+        )
+        .where(
+            Users.user_id == user_id,
+            Users.status == "active",
+            WorkspaceMembers.workspace_id == workspace_id,
+            WorkspaceMembers.member_status == "active",
+            Workspaces.status == "active",
+        )
+    )
+    row = (await session.execute(statement)).one_or_none()
+    if row is None:
+        raise lock_error(
+            status.HTTP_403_FORBIDDEN,
+            "WORKSPACE_ACCESS_DENIED",
+            "用户不是有效的 Workspace 成员",
+        )
+    return row
+
+
+async def editable_object(
+    session: AsyncSession,
+    payload: AcquireFileLockRequest,
+    role: Roles,
+) -> StorageObjects:
+    item = await session.get(StorageObjects, payload.storage_object_id)
+    if (
+        item is None
+        or item.workspace_id != payload.workspace_id
+        or item.object_status != "available"
+    ):
+        raise lock_error(
+            status.HTTP_404_NOT_FOUND,
+            "FILE_NOT_FOUND",
+            "文件不存在",
+        )
+    if (
+        item.object_type != "file"
+        or item.storage_backend != "workspace_fs"
+        or bool(item.is_immutable)
+    ):
+        raise lock_error(
+            status.HTTP_409_CONFLICT,
+            "FILE_NOT_EDITABLE",
+            "仅 Workspace 中的可变文件可以申请编辑锁",
+        )
+    is_owner = item.owner_user_id == payload.user_id
+    is_shared_editor = role.role_code != "viewer"
+    if not (is_owner or is_shared_editor or role.role_code == "admin"):
+        raise lock_error(
+            status.HTTP_403_FORBIDDEN,
+            "FILE_EDIT_DENIED",
+            "当前用户没有该文件的编辑权限",
+        )
+    return item
+
+
+def session_payload(
+    item: EditSessions,
+    *,
+    lock_token: str | None = None,
+    relative_path: str | None = None,
+    heartbeat_interval_seconds: int = 15,
+    jupyter_url: str | None = None,
+) -> dict[str, Any]:
+    data: dict[str, Any] = {
+        "edit_session_id": item.edit_session_id,
+        "workspace_id": item.workspace_id,
+        "storage_object_id": item.storage_object_id,
+        "user_id": item.user_id,
+        "session_status": item.session_status,
+        "lease_seconds": 45,
+        "heartbeat_interval_seconds": heartbeat_interval_seconds,
+        "expires_at": utc_iso(item.expires_at),
+        "runtime_id": item.runtime_id,
+        "jupyter_session_id": item.jupyter_session_id,
+        "jupyter_url": jupyter_url,
+    }
+    if lock_token is not None:
+        data["lock_token"] = lock_token
+    if relative_path is not None:
+        data["relative_path"] = relative_path
+    return data
+
+
+async def owned_session(
+    session: AsyncSession,
+    *,
+    edit_session_id: str,
+    workspace_id: str,
+    user_id: str,
+) -> EditSessions:
+    item = await session.get(EditSessions, edit_session_id)
+    if (
+        item is None
+        or item.workspace_id != workspace_id
+        or item.user_id != user_id
+    ):
+        raise lock_error(
+            status.HTTP_404_NOT_FOUND,
+            "FILE_LOCK_NOT_FOUND",
+            "编辑会话不存在",
+        )
+    return item
+
+
+def verify_token(item: EditSessions, raw_token: str) -> str:
+    digest = token_digest(raw_token)
+    if not secrets.compare_digest(item.lock_token_hash, digest):
+        raise lock_error(
+            status.HTTP_403_FORBIDDEN,
+            "FILE_LOCK_TOKEN_INVALID",
+            "编辑锁 token 无效",
+        )
+    return digest.hex()
+
+
+@app.post(
+    "/internal/v1/file-locks/acquire",
+    status_code=status.HTTP_201_CREATED,
+    dependencies=[Depends(verify_internal_service)],
+)
+async def acquire_file_lock(
+    payload: AcquireFileLockRequest,
+    request: Request,
+) -> dict[str, Any]:
+    ttl_ms: int = request.app.state.file_lock_ttl_ms
+    now = utcnow()
+    edit_session_id = new_ulid()
+    raw_token = secrets.token_urlsafe(32)
+    digest = token_digest(raw_token)
+    key = f"db-lock:{payload.workspace_id}:{payload.storage_object_id}"
+    if not request.app.state.file_lock_enabled:
+        key = f"{key}:session:{edit_session_id}"
+
+    async with request.app.state.session_factory() as session:
+        user, role, workspace = await active_member(
+            session,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        storage_object = await editable_object(session, payload, role)
+
+        if request.app.state.file_lock_enabled:
+            current = await session.scalar(
+                select(EditSessions)
+                .where(
+                    EditSessions.workspace_id == payload.workspace_id,
+                    EditSessions.storage_object_id == payload.storage_object_id,
+                    EditSessions.session_status == "active",
+                )
+                .order_by(EditSessions.started_at.desc())
+                .with_for_update()
+            )
+            if current is not None and current.expires_at > now:
+                editor = await session.get(Users, current.user_id)
+                raise lock_error(
+                    status.HTTP_409_CONFLICT,
+                    "FILE_LOCK_CONFLICT",
+                    "文件正在被其他用户编辑",
+                    retryable=True,
+                    details={
+                        "edit_session_id": current.edit_session_id,
+                        "editor_user_id": current.user_id,
+                        "editor_name": editor.display_name if editor else current.user_id,
+                        "lease_expires_at": utc_iso(current.expires_at),
+                    },
+                )
+            if current is not None:
+                current.session_status = "expired"
+                current.ended_at = now
+                current.end_reason = "database_lease_expired"
+
+        runtime_session = None
+        try:
+            runtime_item, _ = (
+                await request.app.state.runtime_lifecycle.ensure_running(
+                    session,
+                    workspace=workspace,
+                    user_id=payload.user_id,
+                    request_id=payload.request_id,
+                )
+            )
+            if not storage_object.relative_path:
+                raise RuntimeProviderError(
+                    "Workspace file has no relative path"
+                )
+            runtime_session = (
+                await request.app.state.runtime_lifecycle.create_session(
+                    runtime_item,
+                    workspace_code=workspace.workspace_code,
+                    relative_path=storage_object.relative_path,
+                )
+            )
+            expires_at = now + timedelta(milliseconds=ttl_ms)
+            item = EditSessions(
+                edit_session_id=edit_session_id,
+                workspace_id=payload.workspace_id,
+                storage_object_id=payload.storage_object_id,
+                user_id=payload.user_id,
+                runtime_id=runtime_item.runtime_id,
+                jupyter_session_id=runtime_session.session_id,
+                lock_key=key,
+                lock_token_hash=digest,
+                session_status="active",
+                started_at=now,
+                last_heartbeat_at=now,
+                expires_at=expires_at,
+            )
+            session.add(item)
+            await session.commit()
+        except Exception as exc:
+            await session.rollback()
+            if runtime_session is not None and not runtime_session.reused:
+                try:
+                    await request.app.state.runtime_lifecycle.terminate_session(
+                        runtime_session.runtime_id,
+                        runtime_session.session_id,
+                    )
+                except RuntimeProviderError:
+                    logger.warning(
+                        "failed to compensate Jupyter session creation",
+                        exc_info=True,
+                    )
+            if isinstance(exc, RuntimeProviderError):
+                raise lock_error(
+                    status.HTTP_503_SERVICE_UNAVAILABLE,
+                    "JUPYTER_UNAVAILABLE",
+                    "Jupyter Runtime 暂时不可用",
+                    retryable=True,
+                    details={"provider_error": str(exc)},
+                ) from exc
+            raise
+
+    return {
+        "data": session_payload(
+            item,
+            lock_token=raw_token,
+            relative_path=storage_object.relative_path,
+            heartbeat_interval_seconds=max(1, ttl_ms // 3000),
+            jupyter_url=runtime_session.jupyter_url,
+        )
+    }
+
+
+@app.post(
+    "/internal/v1/file-locks/{edit_session_id}/heartbeat",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def heartbeat_file_lock(
+    edit_session_id: str,
+    payload: FileLockTokenRequest,
+    request: Request,
+) -> dict[str, Any]:
+    ttl_ms: int = request.app.state.file_lock_ttl_ms
+    now = utcnow()
+    async with request.app.state.session_factory() as session:
+        item = await owned_session(
+            session,
+            edit_session_id=edit_session_id,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        verify_token(item, payload.lock_token)
+        if item.session_status != "active":
+            raise lock_error(
+                status.HTTP_409_CONFLICT,
+                "FILE_LOCK_NOT_ACTIVE",
+                "编辑锁已结束",
+                details={"session_status": item.session_status},
+            )
+        if item.expires_at <= now:
+            item.session_status = "expired"
+            item.ended_at = now
+            item.end_reason = "database_lease_expired"
+            try:
+                await request.app.state.runtime_lifecycle.terminate_session(
+                    item.runtime_id,
+                    item.jupyter_session_id,
+                )
+            except RuntimeProviderError:
+                logger.warning(
+                    "failed to terminate an expired Jupyter session",
+                    exc_info=True,
+                )
+            await session.commit()
+            raise lock_error(
+                status.HTTP_409_CONFLICT,
+                "FILE_LOCK_EXPIRED",
+                "编辑锁已失效，请重新申请",
+                retryable=True,
+            )
+        item.last_heartbeat_at = now
+        item.expires_at = now + timedelta(milliseconds=ttl_ms)
+        if item.runtime_id:
+            runtime_item = await session.get(RuntimeInstances, item.runtime_id)
+            if runtime_item is not None:
+                request.app.state.runtime_lifecycle.touch(runtime_item)
+        await session.commit()
+        return {"data": session_payload(item)}
+
+
+@app.delete(
+    "/internal/v1/file-locks/{edit_session_id}",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def release_file_lock(
+    edit_session_id: str,
+    payload: FileLockTokenRequest,
+    request: Request,
+) -> dict[str, Any]:
+    now = utcnow()
+    async with request.app.state.session_factory() as session:
+        item = await owned_session(
+            session,
+            edit_session_id=edit_session_id,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        verify_token(item, payload.lock_token)
+        if item.session_status != "active":
+            return {"data": session_payload(item), "meta": {"reused": True}}
+        item.ended_at = now
+        item.session_status = "closed"
+        item.end_reason = "client_release"
+        try:
+            await request.app.state.runtime_lifecycle.terminate_session(
+                item.runtime_id,
+                item.jupyter_session_id,
+            )
+        except RuntimeProviderError:
+            logger.warning(
+                "failed to terminate a released Jupyter session",
+                exc_info=True,
+            )
+        await session.commit()
+        return {"data": session_payload(item), "meta": {"reused": False}}
+
+
+@app.post(
+    "/internal/v1/jupyter/access-tickets/{edit_session_id}",
+    status_code=status.HTTP_201_CREATED,
+    dependencies=[Depends(verify_internal_service)],
+)
+async def create_jupyter_access_ticket(
+    edit_session_id: str,
+    payload: FileLockTokenRequest,
+    request: Request,
+) -> dict[str, Any]:
+    now = utcnow()
+    ttl_seconds: int = request.app.state.jupyter_ticket_ttl_seconds
+    async with request.app.state.session_factory() as session:
+        item = await owned_session(
+            session,
+            edit_session_id=edit_session_id,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        token_hash = verify_token(item, payload.lock_token)
+        if item.session_status != "active" or item.expires_at <= now:
+            raise lock_error(
+                status.HTTP_409_CONFLICT,
+                "FILE_LOCK_EXPIRED",
+                "编辑锁已失效，请重新申请",
+                retryable=True,
+            )
+
+        runtime_item = await session.get(RuntimeInstances, item.runtime_id)
+        if runtime_item is None or runtime_item.actual_state != "running":
+            raise lock_error(
+                status.HTTP_409_CONFLICT,
+                "RUNTIME_NOT_RUNNING",
+                "Jupyter Runtime 未运行",
+                retryable=True,
+            )
+        workspace = await session.get(Workspaces, item.workspace_id)
+        storage_object = await session.get(
+            StorageObjects,
+            item.storage_object_id,
+        )
+        if (
+            workspace is None
+            or storage_object is None
+            or not storage_object.relative_path
+        ):
+            raise lock_error(
+                status.HTTP_409_CONFLICT,
+                "JUPYTER_TARGET_NOT_FOUND",
+                "Jupyter 目标文件不存在",
+            )
+
+        raw_ticket = secrets.token_urlsafe(32)
+        expires_at = now + timedelta(seconds=ttl_seconds)
+        ticket_data = {
+            "workspace_id": item.workspace_id,
+            "user_id": item.user_id,
+            "edit_session_id": item.edit_session_id,
+            "runtime_id": item.runtime_id,
+            "jupyter_session_id": item.jupyter_session_id,
+            "lock_token_hash": token_hash,
+            "expires_at": expires_at,
+        }
+        async with request.app.state.ticket_lock:
+            request.app.state.jupyter_tickets[
+                jupyter_ticket_key(raw_ticket)
+            ] = ticket_data
+
+        return {
+            "data": {
+                "ticket": raw_ticket,
+                "edit_session_id": item.edit_session_id,
+                "jupyter_url": jupyter_url(
+                    workspace.workspace_code,
+                    storage_object.relative_path,
+                ),
+                "expires_at": utc_iso(expires_at),
+                "expires_in_seconds": ttl_seconds,
+            }
+        }
+
+
+@app.get(
+    "/internal/v1/jupyter/authorize",
+    status_code=status.HTTP_204_NO_CONTENT,
+    dependencies=[Depends(verify_internal_service)],
+)
+async def authorize_jupyter_proxy(
+    request: Request,
+    jupyter_access: str | None = Cookie(
+        default=None,
+        alias="jupyter_access",
+    ),
+    x_original_uri: str = Header(alias="X-Original-URI"),
+) -> Response:
+    original_path = unquote(urlsplit(x_original_uri).path)
+    if (
+        not original_path.startswith("/jupyter/")
+        or ".." in PurePosixPath(original_path).parts
+    ):
+        raise lock_error(
+            status.HTTP_403_FORBIDDEN,
+            "JUPYTER_PATH_FORBIDDEN",
+            "Jupyter 代理路径不允许访问",
+        )
+    if not jupyter_access:
+        raise lock_error(
+            status.HTTP_401_UNAUTHORIZED,
+            "JUPYTER_TICKET_REQUIRED",
+            "缺少 Jupyter 访问票据",
+        )
+
+    ticket_key = jupyter_ticket_key(jupyter_access)
+    async with request.app.state.ticket_lock:
+        ticket_data = request.app.state.jupyter_tickets.get(ticket_key)
+        if ticket_data and ticket_data["expires_at"] <= utcnow():
+            request.app.state.jupyter_tickets.pop(ticket_key, None)
+            ticket_data = None
+    if not ticket_data:
+        raise lock_error(
+            status.HTTP_401_UNAUTHORIZED,
+            "JUPYTER_TICKET_EXPIRED",
+            "Jupyter 访问票据无效或已过期",
+        )
+
+    async with request.app.state.session_factory() as session:
+        item = await session.get(EditSessions, ticket_data["edit_session_id"])
+        if (
+            item is None
+            or item.session_status != "active"
+            or item.expires_at <= utcnow()
+            or item.user_id != ticket_data["user_id"]
+            or item.lock_token_hash.hex() != ticket_data["lock_token_hash"]
+        ):
+            async with request.app.state.ticket_lock:
+                request.app.state.jupyter_tickets.pop(ticket_key, None)
+            raise lock_error(
+                status.HTTP_403_FORBIDDEN,
+                "JUPYTER_EDIT_SESSION_INACTIVE",
+                "编辑会话已失效",
+            )
+
+    return Response(
+        status_code=status.HTTP_204_NO_CONTENT,
+        headers={
+            "Cache-Control": "no-store",
+            "X-Jupyter-Upstream": "http://jupyter:8888",
+            "X-Jupyter-Authorization": (
+                f"token {request.app.state.jupyter_token}"
+            ),
+            "X-Workspace-ID": ticket_data["workspace_id"],
+        },
+    )
+
+
+async def reconcile_expired_edit_sessions(app_state: Any) -> None:
+    while True:
+        try:
+            now = utcnow()
+            async with app_state.state.session_factory() as session:
+                items = (
+                    await session.scalars(
+                        select(EditSessions)
+                        .where(
+                            EditSessions.session_status == "active",
+                            EditSessions.expires_at <= now,
+                        )
+                        .limit(100)
+                    )
+                ).all()
+                for item in items:
+                    try:
+                        await (
+                            app_state.state.runtime_lifecycle
+                            .terminate_session(
+                                item.runtime_id,
+                                item.jupyter_session_id,
+                            )
+                        )
+                    except RuntimeProviderError:
+                        logger.warning(
+                            "failed to terminate an abandoned session",
+                            exc_info=True,
+                        )
+                    item.session_status = "expired"
+                    item.ended_at = now
+                    item.end_reason = "database_lease_expired"
+                await session.commit()
+            async with app_state.state.ticket_lock:
+                expired_keys = [
+                    key
+                    for key, value in app_state.state.jupyter_tickets.items()
+                    if value["expires_at"] <= now
+                ]
+                for key in expired_keys:
+                    app_state.state.jupyter_tickets.pop(key, None)
+        except asyncio.CancelledError:
+            raise
+        except Exception:
+            logger.exception("edit-session reconciliation failed")
+        await asyncio.sleep(5)
+
+
+async def runtime_for_member(
+    session: AsyncSession,
+    *,
+    runtime_id: str,
+    workspace_id: str,
+    user_id: str,
+) -> tuple[RuntimeInstances, Workspaces, Roles]:
+    _, role, workspace = await active_member(
+        session,
+        workspace_id=workspace_id,
+        user_id=user_id,
+    )
+    item = await session.get(RuntimeInstances, runtime_id)
+    if (
+        item is None
+        or item.workspace_id != workspace_id
+    ):
+        raise lock_error(
+            status.HTTP_404_NOT_FOUND,
+            "RUNTIME_NOT_FOUND",
+            "Runtime 不存在",
+        )
+    return item, workspace, role
+
+
+@app.post(
+    "/internal/v1/runtimes/ensure",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def ensure_runtime(
+    payload: EnsureRuntimeApiRequest,
+    request: Request,
+) -> dict[str, Any]:
+    async with request.app.state.session_factory() as session:
+        _, _, workspace = await active_member(
+            session,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        try:
+            item, reused = (
+                await request.app.state.runtime_lifecycle.ensure_running(
+                    session,
+                    workspace=workspace,
+                    user_id=payload.user_id,
+                    request_id=payload.request_id,
+                )
+            )
+            await session.commit()
+        except RuntimeProviderError as exc:
+            await session.rollback()
+            raise lock_error(
+                status.HTTP_503_SERVICE_UNAVAILABLE,
+                "JUPYTER_UNAVAILABLE",
+                "Jupyter Runtime 暂时不可用",
+                retryable=True,
+                details={"provider_error": str(exc)},
+            ) from exc
+        return {"data": runtime_payload(item), "meta": {"reused": reused}}
+
+
+@app.get(
+    "/internal/v1/runtimes/{runtime_id}",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def get_runtime(
+    runtime_id: str,
+    request: Request,
+    workspace_id: str = Query(min_length=26, max_length=26),
+    user_id: str = Query(min_length=26, max_length=26),
+) -> dict[str, Any]:
+    async with request.app.state.session_factory() as session:
+        item, _, _ = await runtime_for_member(
+            session,
+            runtime_id=runtime_id,
+            workspace_id=workspace_id,
+            user_id=user_id,
+        )
+        health = await request.app.state.runtime_lifecycle.health(item)
+        await session.commit()
+        return {
+            "data": {
+                **runtime_payload(item),
+                "healthy": health.healthy,
+                "health_detail": health.detail,
+            }
+        }
+
+
+@app.post(
+    "/internal/v1/runtimes/{runtime_id}/restart",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def restart_runtime(
+    runtime_id: str,
+    payload: RuntimeIdentityRequest,
+    request: Request,
+) -> dict[str, Any]:
+    async with request.app.state.session_factory() as session:
+        item, _, _ = await runtime_for_member(
+            session,
+            runtime_id=runtime_id,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        try:
+            await request.app.state.runtime_lifecycle.restart(
+                session,
+                item,
+                user_id=payload.user_id,
+                request_id=payload.request_id,
+            )
+            await session.commit()
+        except RuntimeProviderError as exc:
+            await session.rollback()
+            raise lock_error(
+                status.HTTP_503_SERVICE_UNAVAILABLE,
+                "JUPYTER_UNAVAILABLE",
+                "Jupyter Runtime 重启失败",
+                retryable=True,
+                details={"provider_error": str(exc)},
+            ) from exc
+        return {"data": runtime_payload(item)}
+
+
+@app.delete(
+    "/internal/v1/runtimes/{runtime_id}",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def stop_runtime(
+    runtime_id: str,
+    payload: StopRuntimeApiRequest,
+    request: Request,
+) -> dict[str, Any]:
+    async with request.app.state.session_factory() as session:
+        item, _, _ = await runtime_for_member(
+            session,
+            runtime_id=runtime_id,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        active_sessions = (
+            await session.scalars(
+                select(EditSessions).where(
+                    EditSessions.runtime_id == runtime_id,
+                    EditSessions.session_status == "active",
+                )
+            )
+        ).all()
+        for edit_session in active_sessions:
+            try:
+                await request.app.state.runtime_lifecycle.terminate_session(
+                    runtime_id,
+                    edit_session.jupyter_session_id,
+                )
+            except RuntimeProviderError:
+                logger.warning(
+                    "failed to terminate a session during Runtime stop",
+                    exc_info=True,
+                )
+            edit_session.session_status = "closed"
+            edit_session.ended_at = utcnow()
+            edit_session.end_reason = "runtime_stop"
+        await request.app.state.runtime_lifecycle.stop(
+            session,
+            item,
+            user_id=payload.user_id,
+            request_id=payload.request_id,
+            reason=payload.reason,
+        )
+        await session.commit()
+        return {"data": runtime_payload(item)}
+
+
+@app.post(
+    "/internal/v1/runtimes/{runtime_id}/sessions",
+    status_code=status.HTTP_201_CREATED,
+    dependencies=[Depends(verify_internal_service)],
+)
+async def create_runtime_session(
+    runtime_id: str,
+    payload: CreateRuntimeSessionApiRequest,
+    request: Request,
+) -> dict[str, Any]:
+    async with request.app.state.session_factory() as session:
+        item, workspace, role = await runtime_for_member(
+            session,
+            runtime_id=runtime_id,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        storage_object = await editable_object(
+            session,
+            AcquireFileLockRequest(
+                workspace_id=payload.workspace_id,
+                storage_object_id=payload.storage_object_id,
+                user_id=payload.user_id,
+                request_id=payload.request_id,
+            ),
+            role,
+        )
+        if storage_object.relative_path != payload.relative_path:
+            raise lock_error(
+                status.HTTP_409_CONFLICT,
+                "FILE_PATH_MISMATCH",
+                "文件路径与对象元数据不一致",
+            )
+        try:
+            runtime_session = (
+                await request.app.state.runtime_lifecycle.create_session(
+                    item,
+                    workspace_code=workspace.workspace_code,
+                    relative_path=payload.relative_path,
+                )
+            )
+            await session.commit()
+        except RuntimeProviderError as exc:
+            await session.rollback()
+            raise lock_error(
+                status.HTTP_503_SERVICE_UNAVAILABLE,
+                "JUPYTER_SESSION_FAILED",
+                "Jupyter Session 创建失败",
+                retryable=True,
+                details={"provider_error": str(exc)},
+            ) from exc
+        return {
+            "data": {
+                "runtime_id": runtime_session.runtime_id,
+                "session_id": runtime_session.session_id,
+                "jupyter_url": runtime_session.jupyter_url,
+            },
+            "meta": {"reused": runtime_session.reused},
+        }
+
+
+@app.delete(
+    "/internal/v1/runtimes/{runtime_id}/sessions/{session_id}",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def terminate_runtime_session(
+    runtime_id: str,
+    session_id: str,
+    payload: RuntimeIdentityRequest,
+    request: Request,
+) -> dict[str, Any]:
+    async with request.app.state.session_factory() as session:
+        await runtime_for_member(
+            session,
+            runtime_id=runtime_id,
+            workspace_id=payload.workspace_id,
+            user_id=payload.user_id,
+        )
+        try:
+            await request.app.state.runtime_lifecycle.terminate_session(
+                runtime_id,
+                session_id,
+            )
+        except RuntimeProviderError as exc:
+            raise lock_error(
+                status.HTTP_503_SERVICE_UNAVAILABLE,
+                "JUPYTER_SESSION_TERMINATION_FAILED",
+                "Jupyter Session 终止失败",
+                retryable=True,
+                details={"provider_error": str(exc)},
+            ) from exc
+        return {
+            "data": {
+                "runtime_id": runtime_id,
+                "session_id": session_id,
+                "status": "terminated",
+            }
+        }
+
+
+@app.get("/internal/health/runtime")
+async def internal_health() -> dict[str, str]:
+    return {"status": "ready", "service": "runtime-manager"}
diff --git a/runtime/src/runtime/providers/__init__.py b/runtime/src/runtime/providers/__init__.py
new file mode 100644
index 0000000..befd052
--- /dev/null
+++ b/runtime/src/runtime/providers/__init__.py
@@ -0,0 +1 @@
+"""Runtime provider implementations."""
diff --git a/runtime/src/runtime/providers/shared_jupyter.py b/runtime/src/runtime/providers/shared_jupyter.py
new file mode 100644
index 0000000..bfd8ac3
--- /dev/null
+++ b/runtime/src/runtime/providers/shared_jupyter.py
@@ -0,0 +1,203 @@
+from __future__ import annotations
+
+import hashlib
+from datetime import UTC, datetime
+from pathlib import PurePosixPath
+from urllib.parse import quote
+
+import httpx
+
+from contracts.runtime.runtime_adapter import (
+    CreateSessionRequest,
+    EnsureRuntimeRequest,
+    RuntimeEndpoint,
+    RuntimeHealth,
+    RuntimeSession,
+)
+
+
+class RuntimeProviderError(RuntimeError):
+    pass
+
+
+class SharedJupyterAdapter:
+    """Compose provider backed by one internal Jupyter Server.
+
+    Runtime rows are scoped to a Workspace. Each Notebook has its own
+    Jupyter Session and Kernel inside that server. Replacing this class with
+    a Docker or Kubernetes Workspace provider does not change the contract.
+    """
+
+    provider_name = "process"
+    runtime_ref = "compose:jupyter"
+
+    def __init__(
+        self,
+        client: httpx.AsyncClient,
+        *,
+        internal_url: str,
+        proxy_base_path: str,
+    ) -> None:
+        self.client = client
+        self.internal_url = internal_url.rstrip("/") + "/"
+        self.proxy_base_path = "/" + proxy_base_path.strip("/") + "/"
+
+    async def _request(
+        self,
+        method: str,
+        path: str,
+        *,
+        payload: dict | None = None,
+        allow_not_found: bool = False,
+    ) -> httpx.Response:
+        try:
+            response = await self.client.request(method, path, json=payload)
+        except httpx.RequestError as exc:
+            raise RuntimeProviderError(
+                f"Jupyter request failed: {type(exc).__name__}"
+            ) from exc
+        if allow_not_found and response.status_code == 404:
+            return response
+        if response.is_error:
+            raise RuntimeProviderError(
+                f"Jupyter returned HTTP {response.status_code}"
+            )
+        return response
+
+    async def ensure_running(
+        self,
+        request: EnsureRuntimeRequest,
+    ) -> RuntimeEndpoint:
+        health = await self.health(request.runtime_id)
+        if not health.healthy:
+            raise RuntimeProviderError(
+                health.detail or "Jupyter is not healthy"
+            )
+        return RuntimeEndpoint(
+            runtime_id=request.runtime_id,
+            runtime_type="jupyter",
+            provider=self.provider_name,
+            runtime_ref=self.runtime_ref,
+            internal_url=self.internal_url,
+            proxy_base_path=self.proxy_base_path,
+        )
+
+    async def stop(self, runtime_id: str, reason: str) -> None:
+        # Compose keeps the shared infrastructure process alive. Stopping a
+        # logical Runtime terminates its sessions and updates MySQL state.
+        return None
+
+    async def restart(self, runtime_id: str) -> RuntimeEndpoint:
+        health = await self.health(runtime_id)
+        if not health.healthy:
+            raise RuntimeProviderError(
+                health.detail or "Jupyter is not healthy"
+            )
+        return RuntimeEndpoint(
+            runtime_id=runtime_id,
+            runtime_type="jupyter",
+            provider=self.provider_name,
+            runtime_ref=self.runtime_ref,
+            internal_url=self.internal_url,
+            proxy_base_path=self.proxy_base_path,
+        )
+
+    async def health(self, runtime_id: str) -> RuntimeHealth:
+        try:
+            await self._request("GET", "api/status")
+        except RuntimeProviderError as exc:
+            return RuntimeHealth(
+                runtime_id=runtime_id,
+                healthy=False,
+                checked_at=datetime.now(UTC),
+                detail=str(exc),
+            )
+        return RuntimeHealth(
+            runtime_id=runtime_id,
+            healthy=True,
+            checked_at=datetime.now(UTC),
+        )
+
+    @staticmethod
+    def _session_path(request: CreateSessionRequest) -> str:
+        relative = PurePosixPath(request.relative_path.replace("\\", "/"))
+        if (
+            relative.is_absolute()
+            or not relative.parts
+            or any(part in {"", ".", ".."} for part in relative.parts)
+        ):
+            raise RuntimeProviderError("invalid Jupyter relative path")
+        return PurePosixPath(
+            request.workspace_code,
+            *relative.parts,
+        ).as_posix()
+
+    async def create_session(
+        self,
+        request: CreateSessionRequest,
+    ) -> RuntimeSession:
+        session_path = self._session_path(request)
+        encoded_path = quote(session_path, safe="/")
+        await self._request("GET", f"api/contents/{encoded_path}")
+        if session_path.lower().endswith(".ipynb"):
+            jupyter_url = (
+                f"{self.proxy_base_path}doc/tree/{encoded_path}"
+            )
+        else:
+            jupyter_url = (
+                f"{self.proxy_base_path}lab/tree/{encoded_path}"
+            )
+
+        if not session_path.lower().endswith(".ipynb"):
+            logical_id = hashlib.sha256(
+                f"{request.runtime_id}:{session_path}".encode("utf-8")
+            ).hexdigest()[:32]
+            return RuntimeSession(
+                runtime_id=request.runtime_id,
+                session_id=f"file:{logical_id}",
+                jupyter_url=jupyter_url,
+                reused=True,
+            )
+
+        sessions_response = await self._request("GET", "api/sessions")
+        sessions = sessions_response.json()
+        for item in sessions:
+            if item.get("path") == session_path:
+                return RuntimeSession(
+                    runtime_id=request.runtime_id,
+                    session_id=str(item["id"]),
+                    jupyter_url=jupyter_url,
+                    reused=True,
+                )
+
+        created = (
+            await self._request(
+                "POST",
+                "api/sessions",
+                payload={
+                    "path": session_path,
+                    "name": "",
+                    "type": "notebook",
+                    "kernel": {"name": "python3"},
+                },
+            )
+        ).json()
+        return RuntimeSession(
+            runtime_id=request.runtime_id,
+            session_id=str(created["id"]),
+            jupyter_url=jupyter_url,
+            reused=False,
+        )
+
+    async def terminate_session(
+        self,
+        runtime_id: str,
+        session_id: str,
+    ) -> None:
+        if session_id.startswith("file:"):
+            return
+        await self._request(
+            "DELETE",
+            f"api/sessions/{quote(session_id, safe='')}",
+            allow_not_found=True,
+        )
diff --git a/runtime/src/runtime/runtime_lifecycle.py b/runtime/src/runtime/runtime_lifecycle.py
new file mode 100644
index 0000000..7a0fdf0
--- /dev/null
+++ b/runtime/src/runtime/runtime_lifecycle.py
@@ -0,0 +1,308 @@
+from __future__ import annotations
+
+from datetime import UTC, datetime, timedelta
+from typing import Any
+
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from common.db.models import (
+    RuntimeInstances,
+    WorkspaceOperations,
+    Workspaces,
+)
+from common.ids import new_ulid
+from contracts.runtime.runtime_adapter import (
+    CreateSessionRequest,
+    RuntimeAdapter,
+    RuntimeHealth,
+    RuntimeSession,
+    EnsureRuntimeRequest,
+)
+
+
+def utcnow() -> datetime:
+    return datetime.now(UTC).replace(tzinfo=None)
+
+
+class RuntimeLifecycle:
+    def __init__(
+        self,
+        adapter: RuntimeAdapter,
+        *,
+        lease_seconds: int,
+    ) -> None:
+        self.adapter = adapter
+        self.lease_seconds = lease_seconds
+
+    def _lease_expiry(self, now: datetime) -> datetime:
+        return now + timedelta(seconds=self.lease_seconds)
+
+    async def _record_operation(
+        self,
+        session: AsyncSession,
+        *,
+        workspace_id: str,
+        runtime_id: str,
+        user_id: str,
+        operation_type: str,
+        request_id: str | None,
+        status: str = "succeeded",
+        error_code: str | None = None,
+        error_message: str | None = None,
+    ) -> None:
+        now = utcnow()
+        operation_request_id = (
+            f"runtime:{operation_type}:{request_id}"
+            if request_id
+            else None
+        )
+        if operation_request_id:
+            existing = await session.scalar(
+                select(WorkspaceOperations).where(
+                    WorkspaceOperations.request_id == operation_request_id
+                )
+            )
+            if existing is not None:
+                return
+        session.add(
+            WorkspaceOperations(
+                operation_id=new_ulid(),
+                workspace_id=workspace_id,
+                runtime_id=runtime_id,
+                operation_type=operation_type,
+                operation_status=status,
+                state_version=1,
+                request_id=operation_request_id,
+                requested_by=user_id,
+                started_at=now,
+                finished_at=now,
+                error_code=error_code,
+                error_message=error_message,
+            )
+        )
+
+    async def ensure_running(
+        self,
+        session: AsyncSession,
+        *,
+        workspace: Workspaces,
+        user_id: str,
+        request_id: str | None,
+    ) -> tuple[RuntimeInstances, bool]:
+        # Serializes ensure_running for one Workspace across stateless Runtime
+        # Manager replicas. Provider calls remain behind the adapter boundary.
+        await session.execute(
+            select(Workspaces.workspace_id)
+            .where(Workspaces.workspace_id == workspace.workspace_id)
+            .with_for_update()
+        )
+        now = utcnow()
+        existing = await session.scalar(
+            select(RuntimeInstances)
+            .where(
+                RuntimeInstances.workspace_id == workspace.workspace_id,
+                RuntimeInstances.runtime_type == "jupyter",
+                RuntimeInstances.desired_state == "running",
+                RuntimeInstances.actual_state.in_(
+                    ["provisioning", "starting", "running", "unhealthy"]
+                ),
+            )
+            .order_by(RuntimeInstances.created_at.desc())
+        )
+        if existing is not None:
+            # Jupyter Server is scoped to the Workspace. The user who first
+            # starts it is still recorded in started_by and operation audit,
+            # while owner_user_id=None identifies a shared Workspace Runtime.
+            existing.owner_user_id = None
+            health = await self.adapter.health(existing.runtime_id)
+            if health.healthy:
+                existing.actual_state = "running"
+                existing.last_heartbeat_at = now
+                existing.lease_expires_at = self._lease_expiry(now)
+                existing.state_version += 1
+                existing.error_message = None
+                await self._record_operation(
+                    session,
+                    workspace_id=workspace.workspace_id,
+                    runtime_id=existing.runtime_id,
+                    user_id=user_id,
+                    operation_type="open",
+                    request_id=request_id,
+                )
+                return existing, True
+            existing.actual_state = "unhealthy"
+            existing.state_version += 1
+            existing.error_message = health.detail
+
+        runtime_id = new_ulid()
+        endpoint = await self.adapter.ensure_running(
+            EnsureRuntimeRequest(
+                runtime_id=runtime_id,
+                workspace_id=workspace.workspace_id,
+                workspace_code=workspace.workspace_code,
+                owner_user_id=user_id,
+            )
+        )
+        item = RuntimeInstances(
+            runtime_id=runtime_id,
+            workspace_id=workspace.workspace_id,
+            owner_user_id=None,
+            runtime_type=endpoint.runtime_type,
+            runtime_provider=endpoint.provider,
+            runtime_ref=endpoint.runtime_ref,
+            host_node="compose",
+            internal_url=endpoint.internal_url,
+            proxy_base_path=endpoint.proxy_base_path,
+            desired_state="running",
+            actual_state="running",
+            state_version=1,
+            started_by=user_id,
+            started_at=now,
+            last_heartbeat_at=now,
+            lease_expires_at=self._lease_expiry(now),
+        )
+        session.add(item)
+        await session.flush()
+        await self._record_operation(
+            session,
+            workspace_id=workspace.workspace_id,
+            runtime_id=item.runtime_id,
+            user_id=user_id,
+            operation_type="start",
+            request_id=request_id,
+        )
+        return item, False
+
+    async def health(
+        self,
+        item: RuntimeInstances,
+    ) -> RuntimeHealth:
+        health = await self.adapter.health(item.runtime_id)
+        now = utcnow()
+        item.last_heartbeat_at = now
+        item.actual_state = "running" if health.healthy else "unhealthy"
+        item.error_message = health.detail
+        if health.healthy:
+            item.lease_expires_at = self._lease_expiry(now)
+        item.state_version += 1
+        return health
+
+    async def stop(
+        self,
+        session: AsyncSession,
+        item: RuntimeInstances,
+        *,
+        user_id: str,
+        request_id: str | None,
+        reason: str,
+    ) -> None:
+        if item.actual_state == "stopped":
+            return
+        item.desired_state = "stopped"
+        item.actual_state = "stopping"
+        item.state_version += 1
+        await self.adapter.stop(item.runtime_id, reason)
+        item.actual_state = "stopped"
+        item.stopped_at = utcnow()
+        item.lease_expires_at = None
+        item.state_version += 1
+        await self._record_operation(
+            session,
+            workspace_id=item.workspace_id,
+            runtime_id=item.runtime_id,
+            user_id=user_id,
+            operation_type="stop",
+            request_id=request_id,
+        )
+
+    async def restart(
+        self,
+        session: AsyncSession,
+        item: RuntimeInstances,
+        *,
+        user_id: str,
+        request_id: str | None,
+    ) -> None:
+        item.desired_state = "running"
+        item.actual_state = "starting"
+        item.state_version += 1
+        endpoint = await self.adapter.restart(item.runtime_id)
+        now = utcnow()
+        item.runtime_ref = endpoint.runtime_ref
+        item.internal_url = endpoint.internal_url
+        item.proxy_base_path = endpoint.proxy_base_path
+        item.actual_state = "running"
+        item.started_at = item.started_at or now
+        item.last_heartbeat_at = now
+        item.lease_expires_at = self._lease_expiry(now)
+        item.stopped_at = None
+        item.error_message = None
+        item.state_version += 1
+        await self._record_operation(
+            session,
+            workspace_id=item.workspace_id,
+            runtime_id=item.runtime_id,
+            user_id=user_id,
+            operation_type="restart",
+            request_id=request_id,
+        )
+
+    async def create_session(
+        self,
+        item: RuntimeInstances,
+        *,
+        workspace_code: str,
+        relative_path: str,
+    ) -> RuntimeSession:
+        result = await self.adapter.create_session(
+            CreateSessionRequest(
+                runtime_id=item.runtime_id,
+                workspace_code=workspace_code,
+                relative_path=relative_path,
+            )
+        )
+        now = utcnow()
+        item.last_heartbeat_at = now
+        item.lease_expires_at = self._lease_expiry(now)
+        item.state_version += 1
+        return result
+
+    def touch(self, item: RuntimeInstances) -> None:
+        now = utcnow()
+        item.last_heartbeat_at = now
+        item.lease_expires_at = self._lease_expiry(now)
+        item.state_version += 1
+
+    async def terminate_session(
+        self,
+        runtime_id: str | None,
+        session_id: str | None,
+    ) -> None:
+        if runtime_id and session_id:
+            await self.adapter.terminate_session(runtime_id, session_id)
+
+def runtime_payload(item: RuntimeInstances) -> dict[str, Any]:
+    def iso(value: datetime | None) -> str | None:
+        if value is None:
+            return None
+        return value.replace(tzinfo=UTC).isoformat().replace("+00:00", "Z")
+
+    return {
+        "runtime_id": item.runtime_id,
+        "workspace_id": item.workspace_id,
+        "owner_user_id": item.owner_user_id,
+        "runtime_type": item.runtime_type,
+        "runtime_provider": item.runtime_provider,
+        "runtime_ref": item.runtime_ref,
+        "internal_url": item.internal_url,
+        "proxy_base_path": item.proxy_base_path,
+        "desired_state": item.desired_state,
+        "actual_state": item.actual_state,
+        "state_version": item.state_version,
+        "started_at": iso(item.started_at),
+        "last_heartbeat_at": iso(item.last_heartbeat_at),
+        "lease_expires_at": iso(item.lease_expires_at),
+        "stopped_at": iso(item.stopped_at),
+        "error_message": item.error_message,
+    }
diff --git a/runtime/src/runtime/schemas.py b/runtime/src/runtime/schemas.py
new file mode 100644
index 0000000..13bf381
--- /dev/null
+++ b/runtime/src/runtime/schemas.py
@@ -0,0 +1,40 @@
+from __future__ import annotations
+
+from pydantic import BaseModel, ConfigDict, Field
+
+
+class StrictModel(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+
+class AcquireFileLockRequest(StrictModel):
+    workspace_id: str = Field(min_length=26, max_length=26)
+    storage_object_id: str = Field(min_length=26, max_length=26)
+    user_id: str = Field(min_length=26, max_length=26)
+    request_id: str | None = Field(default=None, min_length=1, max_length=64)
+
+
+class FileLockTokenRequest(StrictModel):
+    workspace_id: str = Field(min_length=26, max_length=26)
+    user_id: str = Field(min_length=26, max_length=26)
+    lock_token: str = Field(min_length=32, max_length=256)
+
+
+class RuntimeIdentityRequest(StrictModel):
+    workspace_id: str = Field(min_length=26, max_length=26)
+    user_id: str = Field(min_length=26, max_length=26)
+    request_id: str | None = Field(default=None, min_length=1, max_length=64)
+
+
+class EnsureRuntimeApiRequest(RuntimeIdentityRequest):
+    pass
+
+
+class StopRuntimeApiRequest(RuntimeIdentityRequest):
+    reason: str = Field(default="client_request", min_length=1, max_length=64)
+
+
+class CreateRuntimeSessionApiRequest(RuntimeIdentityRequest):
+    storage_object_id: str = Field(min_length=26, max_length=26)
+    relative_path: str = Field(min_length=1, max_length=1024)
+
diff --git a/schedule/.python-version b/schedule/.python-version
new file mode 100644
index 0000000..e4fba21
--- /dev/null
+++ b/schedule/.python-version
@@ -0,0 +1 @@
+3.12
diff --git a/schedule/Dockerfile b/schedule/Dockerfile
new file mode 100644
index 0000000..42f343b
--- /dev/null
+++ b/schedule/Dockerfile
@@ -0,0 +1,11 @@
+FROM python:3.12-slim-bookworm
+
+ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1 PYTHONPATH=/app
+WORKDIR /app
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
+COPY common ./common
+COPY schedule ./schedule
+RUN uv pip install --system ./common ./schedule
+
+EXPOSE 8000
+CMD ["uvicorn", "schedule.main:app", "--host", "0.0.0.0", "--port", "8000"]
diff --git a/schedule/README.md b/schedule/README.md
new file mode 100644
index 0000000..77e489c
--- /dev/null
+++ b/schedule/README.md
@@ -0,0 +1,9 @@
+# Schedule Executor
+
+独立调度执行服务，内置 APScheduler。
+
+- Cron 任务持久化到 MySQL 的 `apscheduler_jobs` 表；
+- FastAPI Backend 创建运行记录和 Outbox 事件后，通过 HTTP 尝试立即推送；
+- HTTP 推送失败时，Executor 继续轮询 MySQL `outbox_events`，保证任务不会丢失；
+- Executor 负责 DAG 节点派发、稳定版本执行、重试、状态推进和结果回写；
+- 不依赖 Redis，MySQL 是调度状态与幂等状态的唯一权威。
diff --git a/schedule/pyproject.toml b/schedule/pyproject.toml
new file mode 100644
index 0000000..89ffac9
--- /dev/null
+++ b/schedule/pyproject.toml
@@ -0,0 +1,25 @@
+[project]
+name = "schedule"
+version = "0.2.0"
+requires-python = ">=3.12"
+dependencies = [
+    "common",
+    "fastapi==0.116.1",
+    "uvicorn[standard]==0.35.0",
+    "httpx==0.28.1",
+    "apscheduler==3.11.3",
+    "pymysql==1.2.0",
+    "nbclient==0.10.2",
+    "nbformat==5.10.4",
+    "ipykernel==6.29.5",
+]
+
+[tool.uv.sources]
+common = { path = "../common" }
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/schedule"]
diff --git a/schedule/src/schedule/__init__.py b/schedule/src/schedule/__init__.py
new file mode 100644
index 0000000..2eac494
--- /dev/null
+++ b/schedule/src/schedule/__init__.py
@@ -0,0 +1 @@
+"""Scheduler operational application."""
diff --git a/schedule/src/schedule/execution.py b/schedule/src/schedule/execution.py
new file mode 100644
index 0000000..86c2313
--- /dev/null
+++ b/schedule/src/schedule/execution.py
@@ -0,0 +1,202 @@
+from __future__ import annotations
+
+import asyncio
+import json
+import sys
+import tempfile
+from dataclasses import dataclass
+from pathlib import Path, PurePosixPath
+
+
+MAX_LOG_BYTES = 4 * 1024 * 1024
+
+
+@dataclass(frozen=True)
+class ExecutionResult:
+    status: str
+    exit_code: int | None
+    logs: bytes
+    result: bytes
+    result_file_name: str
+    result_content_type: str
+    error_code: str | None = None
+    error_message: str | None = None
+
+
+def _limited_log(value: str) -> bytes:
+    encoded = value.encode("utf-8", errors="replace")
+    if len(encoded) <= MAX_LOG_BYTES:
+        return encoded or b"execution produced no console output\n"
+    suffix = b"\n[log truncated by scheduler worker]\n"
+    return encoded[: MAX_LOG_BYTES - len(suffix)] + suffix
+
+
+async def _execute_notebook(
+    artifact: Path,
+    *,
+    artifact_name: str,
+    arguments: list[str],
+    workspace_root: Path,
+    timeout_seconds: int,
+) -> ExecutionResult:
+    output = artifact.with_name(f"executed-{artifact_name}")
+    process = await asyncio.create_subprocess_exec(
+        sys.executable,
+        "-m",
+        "schedule.notebook_runner",
+        "--input",
+        str(artifact),
+        "--output",
+        str(output),
+        "--workspace",
+        str(workspace_root),
+        "--timeout",
+        str(max(1, timeout_seconds)),
+        "--arguments-json",
+        json.dumps(arguments, ensure_ascii=False),
+        cwd=str(workspace_root),
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.STDOUT,
+    )
+    try:
+        stdout, _ = await asyncio.wait_for(
+            process.communicate(),
+            timeout=max(1, timeout_seconds) + 30,
+        )
+    except TimeoutError:
+        process.kill()
+        stdout, _ = await process.communicate()
+        status = "timed_out"
+        exit_code = None
+        error_code = "NODE_TIMEOUT"
+        error_message = f"notebook exceeded timeout of {timeout_seconds} seconds"
+    else:
+        exit_code = process.returncode
+        status = (
+            "succeeded"
+            if exit_code == 0
+            else "timed_out"
+            if exit_code == 124
+            else "failed"
+        )
+        error_code = (
+            None
+            if status == "succeeded"
+            else "NODE_TIMEOUT"
+            if status == "timed_out"
+            else "NOTEBOOK_EXECUTION_FAILED"
+        )
+        error_message = (
+            None
+            if status == "succeeded"
+            else "Notebook execution timed out"
+            if status == "timed_out"
+            else "Notebook execution failed; see node log"
+        )
+    return ExecutionResult(
+        status=status,
+        exit_code=exit_code,
+        logs=_limited_log(stdout.decode("utf-8", errors="replace")),
+        result=output.read_bytes() if output.is_file() else artifact.read_bytes(),
+        result_file_name=f"executed-{artifact_name}",
+        result_content_type="application/x-ipynb+json",
+        error_code=error_code,
+        error_message=error_message,
+    )
+
+
+async def _execute_python(
+    artifact: Path,
+    *,
+    arguments: list[str],
+    workspace_root: Path,
+    timeout_seconds: int,
+) -> ExecutionResult:
+    process = await asyncio.create_subprocess_exec(
+        sys.executable,
+        str(artifact),
+        *arguments,
+        cwd=str(workspace_root),
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.STDOUT,
+    )
+    try:
+        stdout, _ = await asyncio.wait_for(
+            process.communicate(),
+            timeout=max(1, timeout_seconds),
+        )
+    except TimeoutError:
+        process.kill()
+        stdout, _ = await process.communicate()
+        message = f"node exceeded timeout of {timeout_seconds} seconds"
+        result = json.dumps(
+            {"status": "timed_out", "exit_code": None, "message": message},
+            ensure_ascii=False,
+        ).encode("utf-8")
+        return ExecutionResult(
+            status="timed_out",
+            exit_code=None,
+            logs=_limited_log(
+                stdout.decode("utf-8", errors="replace") + f"\n{message}\n"
+            ),
+            result=result,
+            result_file_name=f"{artifact.stem}-result.json",
+            result_content_type="application/json",
+            error_code="NODE_TIMEOUT",
+            error_message=message,
+        )
+    exit_code = process.returncode
+    status = "succeeded" if exit_code == 0 else "failed"
+    message = None if status == "succeeded" else f"process exited with code {exit_code}"
+    result = json.dumps(
+        {"status": status, "exit_code": exit_code},
+        ensure_ascii=False,
+    ).encode("utf-8")
+    return ExecutionResult(
+        status=status,
+        exit_code=exit_code,
+        logs=_limited_log(stdout.decode("utf-8", errors="replace")),
+        result=result,
+        result_file_name=f"{artifact.stem}-result.json",
+        result_content_type="application/json",
+        error_code=None if status == "succeeded" else "PROCESS_EXIT_NONZERO",
+        error_message=message,
+    )
+
+
+async def execute_artifact(
+    source: bytes,
+    *,
+    run_id: str,
+    node_run_id: str,
+    script_type: str,
+    artifact_path: str,
+    arguments: list[str],
+    workspace_root: Path,
+    timeout_seconds: int,
+) -> ExecutionResult:
+    runtime_root = workspace_root / "runtime_tmp" / "schedule-runs"
+    runtime_root.mkdir(parents=True, exist_ok=True)
+    suffix = ".ipynb" if script_type == "notebook" else ".py"
+    raw_name = PurePosixPath(artifact_path.replace("\\", "/")).name
+    artifact_name = raw_name if raw_name.endswith(suffix) else f"artifact{suffix}"
+    prefix = f"{run_id[-6:]}-{node_run_id[-6:]}-"
+    with tempfile.TemporaryDirectory(prefix=prefix, dir=runtime_root) as directory:
+        artifact = Path(directory) / artifact_name
+        artifact.write_bytes(source)
+        if script_type == "notebook":
+            return await _execute_notebook(
+                artifact,
+                artifact_name=artifact_name,
+                arguments=arguments,
+                workspace_root=workspace_root,
+                timeout_seconds=timeout_seconds,
+            )
+        if script_type == "python":
+            return await _execute_python(
+                artifact,
+                arguments=arguments,
+                workspace_root=workspace_root,
+                timeout_seconds=timeout_seconds,
+            )
+    raise ValueError(f"unsupported script_type: {script_type}")
diff --git a/schedule/src/schedule/main.py b/schedule/src/schedule/main.py
new file mode 100644
index 0000000..a0196dc
--- /dev/null
+++ b/schedule/src/schedule/main.py
@@ -0,0 +1,77 @@
+from __future__ import annotations
+
+import os
+import secrets
+from contextlib import asynccontextmanager
+from pathlib import Path
+from typing import Any, AsyncIterator
+
+from fastapi import Depends, Header, HTTPException, Request, status
+
+from common.db import create_database_engine, create_session_factory
+from common.service_app import create_service_app
+from schedule.service import (
+    SchedulerService,
+    build_object_store,
+    build_storage_http_client,
+)
+from schedule.storage_client import SchedulerStorageClient
+
+
+def verify_internal_service(
+    x_service_token: str = Header(alias="X-Service-Token"),
+) -> None:
+    expected = os.environ.get("INTERNAL_SERVICE_TOKEN", "")
+    if not expected or not secrets.compare_digest(expected, x_service_token):
+        raise HTTPException(
+            status.HTTP_401_UNAUTHORIZED,
+            "invalid internal service identity",
+        )
+
+
+@asynccontextmanager
+async def lifespan(app: Any) -> AsyncIterator[None]:
+    database_url = os.environ["DATABASE_URL"]
+    engine = create_database_engine(database_url)
+    session_factory = create_session_factory(engine)
+    backend_http_client = build_storage_http_client()
+    service = SchedulerService(
+        session_factory=session_factory,
+        object_store=build_object_store(),
+        storage_client=SchedulerStorageClient(
+            backend_http_client,
+            os.environ["INTERNAL_SERVICE_TOKEN"],
+        ),
+        backend_http_client=backend_http_client,
+        workspace_root=Path(
+            os.getenv("WORKSPACE_ROOT", "/workspace/workspaces")
+        ),
+        database_url=database_url,
+    )
+    app.state.scheduler_service = service
+    await service.start()
+    try:
+        yield
+    finally:
+        await service.close()
+        await backend_http_client.aclose()
+        await engine.dispose()
+
+
+app = create_service_app(
+    os.getenv("SERVICE_NAME", "schedule-executor"),
+    lifespan=lifespan,
+)
+
+
+@app.post(
+    "/internal/v1/runs/{run_id}/dispatch",
+    dependencies=[Depends(verify_internal_service)],
+)
+async def dispatch_run(run_id: str, request: Request) -> dict[str, Any]:
+    processed = await request.app.state.scheduler_service.dispatch_run(run_id)
+    return {
+        "status": "accepted",
+        "run_id": run_id,
+        "processed_events": processed,
+    }
diff --git a/schedule/src/schedule/notebook_runner.py b/schedule/src/schedule/notebook_runner.py
new file mode 100644
index 0000000..dbe7882
--- /dev/null
+++ b/schedule/src/schedule/notebook_runner.py
@@ -0,0 +1,83 @@
+from __future__ import annotations
+
+import argparse
+import json
+import sys
+import traceback
+from pathlib import Path
+
+import nbformat
+from nbclient import NotebookClient
+
+
+def emit_outputs(notebook: object) -> None:
+    for cell in notebook.cells:  # type: ignore[attr-defined]
+        if cell.get("cell_type") != "code":
+            continue
+        for output in cell.get("outputs", []):
+            output_type = output.get("output_type")
+            if output_type == "stream":
+                text = output.get("text", "")
+                print(
+                    "".join(text) if isinstance(text, list) else str(text),
+                    end="",
+                    flush=True,
+                )
+            elif output_type == "error":
+                print(
+                    f"{output.get('ename', 'Error')}: "
+                    f"{output.get('evalue', '')}",
+                    file=sys.stderr,
+                    flush=True,
+                )
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--input", required=True)
+    parser.add_argument("--output", required=True)
+    parser.add_argument("--workspace", required=True)
+    parser.add_argument("--timeout", required=True, type=int)
+    parser.add_argument("--arguments-json", default="[]")
+    args = parser.parse_args()
+
+    source = Path(args.input)
+    output = Path(args.output)
+    workspace = Path(args.workspace)
+    arguments = json.loads(args.arguments_json)
+    if not isinstance(arguments, list) or not all(
+        isinstance(item, str) for item in arguments
+    ):
+        raise ValueError("arguments-json must contain an array of strings")
+
+    notebook = nbformat.read(source, as_version=4)
+    if arguments:
+        notebook.cells.insert(
+            0,
+            nbformat.v4.new_code_cell(
+                "import sys\n"
+                f"sys.argv = {json.dumps([source.name, *arguments], ensure_ascii=False)}",
+                metadata={"tags": ["injected-parameters"]},
+            ),
+        )
+    exit_code = 0
+    try:
+        client = NotebookClient(
+            notebook,
+            timeout=max(1, args.timeout),
+            kernel_name="python3",
+            allow_errors=False,
+        )
+        client.execute(cwd=str(workspace))
+    except Exception as exc:
+        traceback.print_exc()
+        exit_code = 124 if "timeout" in type(exc).__name__.lower() else 1
+    finally:
+        output.parent.mkdir(parents=True, exist_ok=True)
+        nbformat.write(notebook, output)
+        emit_outputs(notebook)
+    raise SystemExit(exit_code)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/schedule/src/schedule/service.py b/schedule/src/schedule/service.py
new file mode 100644
index 0000000..3c92940
--- /dev/null
+++ b/schedule/src/schedule/service.py
@@ -0,0 +1,922 @@
+from __future__ import annotations
+
+import asyncio
+import hashlib
+import json
+import logging
+import os
+import traceback
+from contextlib import suppress
+from datetime import UTC, datetime, timedelta
+from pathlib import Path
+from typing import Any
+from zoneinfo import ZoneInfo
+
+import boto3
+import httpx
+from apscheduler.jobstores.sqlalchemy import SQLAlchemyJobStore
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
+from apscheduler.triggers.cron import CronTrigger
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker
+
+from common.db.models import (
+    ConsumerInbox,
+    OutboxEvents,
+    ScheduleNodeRuns,
+    ScheduleRuns,
+    Schedules,
+    StorageObjects,
+    Versions,
+    Workspaces,
+)
+from common.eventing import add_outbox_event, event_time, utcnow
+from common.ids import new_ulid
+from common.db.session import session_scope
+from schedule.execution import ExecutionResult, execute_artifact
+from schedule.storage_client import SchedulerStorageClient
+
+
+LOGGER = logging.getLogger(__name__)
+TERMINAL_NODE_STATES = {
+    "succeeded",
+    "failed",
+    "skipped",
+    "cancelled",
+    "timed_out",
+}
+FAILED_NODE_STATES = {"failed", "cancelled", "timed_out"}
+TERMINAL_RUN_STATES = {
+    "succeeded",
+    "failed",
+    "cancelled",
+    "timed_out",
+}
+
+_ACTIVE_SERVICE: "SchedulerService | None" = None
+
+
+def _sync_database_url(value: str) -> str:
+    return value.replace("mysql+asyncmy://", "mysql+pymysql://", 1)
+
+
+def _naive_utc(value: datetime | None) -> datetime | None:
+    if value is None:
+        return None
+    if value.tzinfo is None:
+        value = value.replace(tzinfo=UTC)
+    return value.astimezone(UTC).replace(tzinfo=None)
+
+
+async def run_scheduled_job(schedule_id: str) -> None:
+    service = _ACTIVE_SERVICE
+    if service is None:
+        LOGGER.warning("scheduler job skipped because service is not ready")
+        return
+    await service.trigger_schedule(schedule_id)
+
+
+class SchedulerService:
+    def __init__(
+        self,
+        *,
+        session_factory: async_sessionmaker[AsyncSession],
+        object_store: Any,
+        storage_client: SchedulerStorageClient,
+        backend_http_client: httpx.AsyncClient,
+        workspace_root: Path,
+        database_url: str,
+    ) -> None:
+        self.session_factory = session_factory
+        self.object_store = object_store
+        self.storage_client = storage_client
+        self.backend_http_client = backend_http_client
+        self.workspace_root = workspace_root
+        self.tasks: list[asyncio.Task[Any]] = []
+        self.dispatch_lock = asyncio.Lock()
+        self.scheduler = AsyncIOScheduler(
+            jobstores={
+                "default": SQLAlchemyJobStore(
+                    url=_sync_database_url(database_url),
+                    tablename="apscheduler_jobs",
+                )
+            },
+            timezone=UTC,
+        )
+
+    async def start(self) -> None:
+        global _ACTIVE_SERVICE
+        _ACTIVE_SERVICE = self
+        self.scheduler.start()
+        await self._sync_cron_jobs()
+        self.tasks = [
+            asyncio.create_task(
+                self._database_event_loop(),
+                name="scheduler-database-events",
+            ),
+            asyncio.create_task(
+                self._schedule_sync_loop(),
+                name="scheduler-cron-sync",
+            ),
+        ]
+
+    async def close(self) -> None:
+        global _ACTIVE_SERVICE
+        for task in self.tasks:
+            task.cancel()
+        for task in self.tasks:
+            with suppress(asyncio.CancelledError):
+                await task
+        self.tasks.clear()
+        if self.scheduler.running:
+            self.scheduler.shutdown(wait=False)
+        _ACTIVE_SERVICE = None
+
+    async def _database_event_loop(self) -> None:
+        while True:
+            try:
+                processed = await self.process_pending_events(limit=20)
+                if not processed:
+                    await asyncio.sleep(0.25)
+            except asyncio.CancelledError:
+                raise
+            except Exception:
+                LOGGER.exception("database event loop failed")
+                await asyncio.sleep(1)
+
+    async def process_pending_events(
+        self,
+        *,
+        limit: int = 20,
+        aggregate_id: str | None = None,
+    ) -> int:
+        async with self.dispatch_lock:
+            async with session_scope(self.session_factory) as session:
+                statement = (
+                    select(OutboxEvents)
+                    .where(
+                        OutboxEvents.event_status == "pending",
+                        OutboxEvents.available_at <= utcnow(),
+                    )
+                    .order_by(OutboxEvents.created_at)
+                    .limit(limit)
+                )
+                if aggregate_id:
+                    statement = statement.where(
+                        OutboxEvents.aggregate_id == aggregate_id
+                    )
+                events = list((await session.scalars(statement)).all())
+                for item in events:
+                    try:
+                        await self._process_outbox_event(item)
+                        item.event_status = "published"
+                        item.published_at = utcnow()
+                        item.last_error = None
+                    except Exception as exc:
+                        item.retry_count += 1
+                        item.last_error = str(exc)[:2000]
+                        if item.retry_count >= 5:
+                            item.event_status = "failed"
+                        else:
+                            item.available_at = utcnow() + timedelta(
+                                seconds=min(30, 2 ** item.retry_count)
+                            )
+                        LOGGER.exception(
+                            "failed to process database event %s",
+                            item.event_id,
+                        )
+                return len(events)
+
+    async def _process_outbox_event(self, item: OutboxEvents) -> None:
+        handlers = {
+            "schedule.run.requested": self._handle_run_requested,
+            "job.node.execute": self._handle_node_execute,
+            "job.node.finished": self._handle_node_finished,
+        }
+        handler = handlers.get(item.event_type)
+        if handler is None:
+            raise ValueError(f"unsupported event type: {item.event_type}")
+        await handler(item.payload_json, f"mysql:{item.event_id}")
+
+    async def dispatch_run(self, run_id: str) -> int:
+        return await self.process_pending_events(
+            limit=50,
+            aggregate_id=run_id,
+        )
+
+    async def _schedule_sync_loop(self) -> None:
+        while True:
+            try:
+                await self._sync_cron_jobs()
+            except asyncio.CancelledError:
+                raise
+            except Exception:
+                LOGGER.exception("cron job synchronization failed")
+            await asyncio.sleep(5)
+
+    async def _sync_cron_jobs(self) -> None:
+        async with session_scope(self.session_factory) as session:
+            schedules = list(
+                (
+                    await session.scalars(
+                        select(Schedules).where(
+                            Schedules.deleted_at.is_(None),
+                            Schedules.enabled == 1,
+                            Schedules.trigger_type == "cron",
+                            Schedules.cron_expression.is_not(None),
+                        )
+                    )
+                ).all()
+            )
+            active_job_ids: set[str] = set()
+            for item in schedules:
+                job_id = f"schedule:{item.schedule_id}"
+                active_job_ids.add(job_id)
+                expression = (item.cron_expression or "").strip()
+                trigger = CronTrigger.from_crontab(
+                    expression,
+                    timezone=ZoneInfo(item.timezone),
+                )
+                job = self.scheduler.add_job(
+                    run_scheduled_job,
+                    trigger=trigger,
+                    args=[item.schedule_id],
+                    id=job_id,
+                    replace_existing=True,
+                    coalesce=True,
+                    max_instances=max(1, item.max_concurrency),
+                    misfire_grace_time=60,
+                )
+                item.next_run_at = _naive_utc(job.next_run_time)
+            for job in self.scheduler.get_jobs():
+                if job.id.startswith("schedule:") and job.id not in active_job_ids:
+                    self.scheduler.remove_job(job.id)
+
+    async def trigger_schedule(self, schedule_id: str) -> None:
+        async with self.session_factory() as session:
+            item = await session.get(Schedules, schedule_id)
+            if (
+                item is None
+                or item.deleted_at is not None
+                or not item.enabled
+                or item.trigger_type != "cron"
+            ):
+                return
+            user_id = item.created_by
+            workspace_id = item.workspace_id
+        now = datetime.now(UTC)
+        idempotency_key = (
+            f"cron:{schedule_id}:{now.strftime('%Y%m%d%H%M')}"
+        )
+        response = await self.backend_http_client.post(
+            f"/api/v1/schedules/{schedule_id}/run",
+            headers={
+                "X-User-ID": user_id,
+                "X-Workspace-ID": workspace_id,
+                "X-Request-ID": new_ulid(),
+                "Idempotency-Key": idempotency_key,
+            },
+            json={"reason": "cron"},
+        )
+        if response.is_error:
+            raise RuntimeError(
+                f"backend rejected cron run: {response.status_code} "
+                f"{response.text[:500]}"
+            )
+
+    async def _start_inbox(
+        self,
+        session: AsyncSession,
+        *,
+        consumer_name: str,
+        event_id: str,
+        message_id: str,
+    ) -> tuple[ConsumerInbox, bool]:
+        item = await session.get(
+            ConsumerInbox,
+            (consumer_name, event_id),
+            with_for_update=True,
+        )
+        if item is not None and item.process_status == "succeeded":
+            return item, False
+        if item is None:
+            item = ConsumerInbox(
+                consumer_name=consumer_name,
+                event_id=event_id,
+                process_status="processing",
+                message_id=message_id,
+            )
+            session.add(item)
+        else:
+            item.process_status = "processing"
+            item.message_id = message_id
+            item.error_message = None
+        return item, True
+
+    @staticmethod
+    def _finish_inbox(item: ConsumerInbox) -> None:
+        item.process_status = "succeeded"
+        item.processed_at = utcnow()
+        item.error_message = None
+
+    async def _handle_run_requested(
+        self,
+        event: dict[str, Any],
+        message_id: str,
+    ) -> None:
+        if event.get("event_type") != "schedule.run.requested":
+            raise ValueError("unexpected event type")
+        payload = event["payload"]
+        async with session_scope(self.session_factory) as session:
+            inbox, should_process = await self._start_inbox(
+                session,
+                consumer_name="schedule-orchestrator",
+                event_id=event["event_id"],
+                message_id=message_id,
+            )
+            if not should_process:
+                return
+            run = await session.scalar(
+                select(ScheduleRuns)
+                .where(ScheduleRuns.run_id == payload["run_id"])
+                .with_for_update()
+            )
+            if run is None:
+                raise ValueError("schedule run does not exist")
+            if run.run_status not in TERMINAL_RUN_STATES:
+                if run.run_status == "queued":
+                    run.run_status = "running"
+                    run.started_at = utcnow()
+                    run.state_version += 1
+                await self._advance_run(
+                    session,
+                    run,
+                    trace_id=event["trace_id"],
+                )
+            self._finish_inbox(inbox)
+
+    async def _dispatch_node(
+        self,
+        session: AsyncSession,
+        *,
+        run: ScheduleRuns,
+        node: dict[str, Any],
+        attempt_no: int,
+        trace_id: str,
+        delay_seconds: int = 0,
+    ) -> ScheduleNodeRuns:
+        node_run = ScheduleNodeRuns(
+            node_run_id=new_ulid(),
+            run_id=run.run_id,
+            node_id=node["node_id"],
+            versions_id=node["versions_id"],
+            attempt_no=attempt_no,
+            node_status="queued",
+            state_version=0,
+            message=(
+                f"等待重试（{delay_seconds} 秒）"
+                if delay_seconds
+                else "等待 Worker 执行"
+            ),
+        )
+        session.add(node_run)
+        await add_outbox_event(
+            session,
+            event_type="job.node.execute",
+            producer="schedule-orchestrator",
+            trace_id=trace_id,
+            aggregate_type="schedule_node_run",
+            aggregate_id=node_run.node_run_id,
+            idempotency_key=f"{node_run.node_run_id}:{attempt_no}",
+            available_at=(
+                utcnow() + timedelta(seconds=delay_seconds)
+                if delay_seconds
+                else None
+            ),
+            payload={
+                "workspace_id": run.workspace_id,
+                "run_id": run.run_id,
+                "node_run_id": node_run.node_run_id,
+                "node_id": node["node_id"],
+                "versions_id": node["versions_id"],
+                "attempt_no": attempt_no,
+                "script_type": node["script_type"],
+                "artifact_object_id": node["artifact_object_id"],
+                "artifact_path": node["artifact_path"],
+                "timeout_seconds": node["timeout_seconds"],
+                "arguments": node.get("arguments", []),
+            },
+        )
+        return node_run
+
+    async def _advance_run(
+        self,
+        session: AsyncSession,
+        run: ScheduleRuns,
+        *,
+        trace_id: str,
+    ) -> None:
+        snapshot = run.schedule_snapshot
+        nodes = snapshot.get("nodes", [])
+        node_by_id = {node["node_id"]: node for node in nodes}
+        parents: dict[str, set[str]] = {node_id: set() for node_id in node_by_id}
+        for edge in snapshot.get("edges", []):
+            parents.setdefault(edge["target_node_id"], set()).add(
+                edge["source_node_id"]
+            )
+        rows = list(
+            (
+                await session.scalars(
+                    select(ScheduleNodeRuns)
+                    .where(ScheduleNodeRuns.run_id == run.run_id)
+                    .order_by(ScheduleNodeRuns.attempt_no)
+                )
+            ).all()
+        )
+        latest: dict[str, ScheduleNodeRuns] = {}
+        for row in rows:
+            current = latest.get(row.node_id)
+            if current is None or row.attempt_no >= current.attempt_no:
+                latest[row.node_id] = row
+
+        max_concurrency = max(1, int(snapshot.get("max_concurrency", 1)))
+        while True:
+            changed = False
+            active_count = sum(
+                item.node_status in {"queued", "running"}
+                for item in latest.values()
+            )
+            for node in nodes:
+                current = latest.get(node["node_id"])
+                if (
+                    current is not None
+                    and current.node_status in FAILED_NODE_STATES
+                    and current.attempt_no <= int(node.get("retry_count", 0))
+                    and active_count < max_concurrency
+                ):
+                    retried = await self._dispatch_node(
+                        session,
+                        run=run,
+                        node=node,
+                        attempt_no=current.attempt_no + 1,
+                        trace_id=trace_id,
+                        delay_seconds=int(node.get("retry_interval_sec", 0)),
+                    )
+                    latest[node["node_id"]] = retried
+                    active_count += 1
+                    changed = True
+
+            exhausted_failure = any(
+                item.node_status in FAILED_NODE_STATES
+                and item.attempt_no
+                > int(node_by_id[item.node_id].get("retry_count", 0))
+                for item in latest.values()
+            )
+            stop_all = (
+                snapshot.get("failure_policy", "stop") == "stop"
+                and exhausted_failure
+            )
+            for node in nodes:
+                node_id = node["node_id"]
+                if node_id in latest:
+                    continue
+                parent_runs = [latest.get(parent) for parent in parents[node_id]]
+                parent_failed = any(
+                    item is not None
+                    and item.node_status in TERMINAL_NODE_STATES
+                    and item.node_status != "succeeded"
+                    for item in parent_runs
+                )
+                if stop_all or parent_failed:
+                    skipped = ScheduleNodeRuns(
+                        node_run_id=new_ulid(),
+                        run_id=run.run_id,
+                        node_id=node_id,
+                        versions_id=node["versions_id"],
+                        attempt_no=1,
+                        node_status="skipped",
+                        state_version=1,
+                        finished_at=utcnow(),
+                        duration_ms=0,
+                        message=(
+                            "调度失败策略为 stop，未再启动"
+                            if stop_all
+                            else "上游节点未成功，已跳过"
+                        ),
+                    )
+                    session.add(skipped)
+                    latest[node_id] = skipped
+                    changed = True
+                elif (
+                    all(
+                        item is not None and item.node_status == "succeeded"
+                        for item in parent_runs
+                    )
+                    and active_count < max_concurrency
+                ):
+                    dispatched = await self._dispatch_node(
+                        session,
+                        run=run,
+                        node=node,
+                        attempt_no=1,
+                        trace_id=trace_id,
+                    )
+                    latest[node_id] = dispatched
+                    active_count += 1
+                    changed = True
+            if not changed:
+                break
+
+        if nodes and len(latest) == len(nodes) and all(
+            item.node_status in TERMINAL_NODE_STATES
+            for item in latest.values()
+        ):
+            now = utcnow()
+            succeeded = all(
+                item.node_status == "succeeded" for item in latest.values()
+            )
+            run.run_status = "succeeded" if succeeded else "failed"
+            run.error_code = None if succeeded else "SCHEDULE_NODE_FAILED"
+            run.error_message = (
+                None if succeeded else "one or more schedule nodes did not succeed"
+            )
+            run.finished_at = now
+            if run.started_at:
+                run.duration_ms = max(
+                    0,
+                    int((now - run.started_at).total_seconds() * 1000),
+                )
+            run.state_version += 1
+
+    async def _execution_context(
+        self,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        async with self.session_factory() as session:
+            row = (
+                await session.execute(
+                    select(
+                        ScheduleNodeRuns,
+                        ScheduleRuns,
+                        Versions,
+                        StorageObjects,
+                        Workspaces,
+                        Schedules,
+                    )
+                    .join(
+                        ScheduleRuns,
+                        ScheduleRuns.run_id == ScheduleNodeRuns.run_id,
+                    )
+                    .join(
+                        Versions,
+                        Versions.versions_id == ScheduleNodeRuns.versions_id,
+                    )
+                    .join(
+                        StorageObjects,
+                        StorageObjects.storage_object_id
+                        == Versions.artifact_object_id,
+                    )
+                    .join(
+                        Workspaces,
+                        Workspaces.workspace_id == ScheduleRuns.workspace_id,
+                    )
+                    .join(
+                        Schedules,
+                        Schedules.schedule_id == ScheduleRuns.schedule_id,
+                    )
+                    .where(
+                        ScheduleNodeRuns.node_run_id == payload["node_run_id"],
+                    )
+                )
+            ).one_or_none()
+            if row is None:
+                raise ValueError("node execution metadata not found")
+            node_run, run, version, storage, workspace, schedule = row
+            if storage.object_status != "available":
+                raise ValueError("stable version artifact is not available")
+            if storage.storage_backend != "rustfs":
+                raise ValueError("stable version artifact is not stored in RustFS")
+            if not storage.bucket_name or not storage.object_key:
+                raise ValueError("stable version artifact location is incomplete")
+            user_id = run.triggered_by or schedule.created_by
+            return {
+                "node_status": node_run.node_status,
+                "workspace_id": run.workspace_id,
+                "workspace_code": workspace.workspace_code,
+                "user_id": user_id,
+                "bucket_name": storage.bucket_name,
+                "object_key": storage.object_key,
+                "content_hash": version.content_hash,
+            }
+
+    async def _fallback_execution_context(
+        self,
+        payload: dict[str, Any],
+    ) -> dict[str, Any]:
+        async with self.session_factory() as session:
+            row = (
+                await session.execute(
+                    select(ScheduleRuns, Workspaces, Schedules)
+                    .join(
+                        Workspaces,
+                        Workspaces.workspace_id == ScheduleRuns.workspace_id,
+                    )
+                    .join(
+                        Schedules,
+                        Schedules.schedule_id == ScheduleRuns.schedule_id,
+                    )
+                    .where(ScheduleRuns.run_id == payload["run_id"])
+                )
+            ).one_or_none()
+            if row is None:
+                raise ValueError("schedule run execution context not found")
+            run, workspace, schedule = row
+            return {
+                "workspace_id": run.workspace_id,
+                "workspace_code": workspace.workspace_code,
+                "user_id": run.triggered_by or schedule.created_by,
+            }
+
+    async def _download_artifact(
+        self,
+        *,
+        bucket_name: str,
+        object_key: str,
+        content_hash: str,
+    ) -> bytes:
+        def read() -> bytes:
+            response = self.object_store.get_object(
+                Bucket=bucket_name,
+                Key=object_key,
+            )
+            body = response["Body"]
+            try:
+                return body.read()
+            finally:
+                body.close()
+
+        content = await asyncio.to_thread(read)
+        if hashlib.sha256(content).hexdigest() != content_hash:
+            raise ValueError("stable version artifact hash mismatch")
+        return content
+
+    async def _set_node_running(
+        self,
+        event: dict[str, Any],
+        message_id: str,
+    ) -> bool:
+        payload = event["payload"]
+        async with session_scope(self.session_factory) as session:
+            inbox, should_process = await self._start_inbox(
+                session,
+                consumer_name="job-workers",
+                event_id=event["event_id"],
+                message_id=message_id,
+            )
+            if not should_process:
+                return False
+            node_run = await session.scalar(
+                select(ScheduleNodeRuns)
+                .where(
+                    ScheduleNodeRuns.node_run_id == payload["node_run_id"],
+                )
+                .with_for_update()
+            )
+            if node_run is None:
+                raise ValueError("schedule node run does not exist")
+            if node_run.node_status in TERMINAL_NODE_STATES:
+                self._finish_inbox(inbox)
+                return False
+            if node_run.node_status == "queued":
+                node_run.node_status = "running"
+                node_run.started_at = utcnow()
+                node_run.message = "Worker 正在执行稳定版本"
+                node_run.state_version += 1
+            return True
+
+    async def _upload_execution_artifacts(
+        self,
+        *,
+        payload: dict[str, Any],
+        context: dict[str, Any],
+        result: ExecutionResult,
+    ) -> tuple[str | None, str | None, str | None]:
+        log_id: str | None = None
+        result_id: str | None = None
+        upload_error: str | None = None
+        try:
+            log_object = await self.storage_client.create_object(
+                workspace_id=context["workspace_id"],
+                user_id=context["user_id"],
+                usage_type="run_log",
+                file_name=f"{payload['node_run_id']}.log",
+                content_type="text/plain; charset=utf-8",
+                content=result.logs,
+                idempotency_key=f"{payload['node_run_id']}:log",
+            )
+            log_id = log_object["storage_object_id"]
+            result_object = await self.storage_client.create_object(
+                workspace_id=context["workspace_id"],
+                user_id=context["user_id"],
+                usage_type="run_result",
+                file_name=result.result_file_name,
+                content_type=result.result_content_type,
+                content=result.result,
+                idempotency_key=f"{payload['node_run_id']}:result",
+            )
+            result_id = result_object["storage_object_id"]
+        except Exception as exc:
+            upload_error = f"result upload failed: {exc}"[:2000]
+            LOGGER.exception("failed to upload node execution artifacts")
+        return log_id, result_id, upload_error
+
+    async def _handle_node_execute(
+        self,
+        event: dict[str, Any],
+        message_id: str,
+    ) -> None:
+        if event.get("event_type") != "job.node.execute":
+            raise ValueError("unexpected event type")
+        payload = event["payload"]
+        if not await self._set_node_running(event, message_id):
+            return
+        started_at = utcnow()
+        context: dict[str, Any] | None = None
+        try:
+            context = await self._execution_context(payload)
+            content = await self._download_artifact(
+                bucket_name=context["bucket_name"],
+                object_key=context["object_key"],
+                content_hash=context["content_hash"],
+            )
+            workspace_root = (
+                self.workspace_root / context["workspace_code"]
+            ).resolve()
+            workspace_root.mkdir(parents=True, exist_ok=True)
+            result = await execute_artifact(
+                content,
+                run_id=payload["run_id"],
+                node_run_id=payload["node_run_id"],
+                script_type=payload["script_type"],
+                artifact_path=payload["artifact_path"],
+                arguments=[str(item) for item in payload.get("arguments", [])],
+                workspace_root=workspace_root,
+                timeout_seconds=int(payload["timeout_seconds"]),
+            )
+        except Exception as exc:
+            trace = traceback.format_exc()
+            result = ExecutionResult(
+                status="failed",
+                exit_code=1,
+                logs=trace.encode("utf-8", errors="replace"),
+                result=json.dumps(
+                    {"status": "failed", "error": str(exc)},
+                    ensure_ascii=False,
+                ).encode("utf-8"),
+                result_file_name=f"{payload['node_run_id']}-result.json",
+                result_content_type="application/json",
+                error_code="WORKER_EXECUTION_FAILED",
+                error_message=str(exc)[:2000],
+            )
+            if context is None:
+                context = await self._fallback_execution_context(payload)
+
+        log_id, result_id, upload_error = await self._upload_execution_artifacts(
+            payload=payload,
+            context=context,
+            result=result,
+        )
+        finished_at = utcnow()
+        duration_ms = max(
+            0,
+            int((finished_at - started_at).total_seconds() * 1000),
+        )
+        error_message = result.error_message
+        if upload_error:
+            error_message = (
+                f"{error_message}; {upload_error}"
+                if error_message
+                else upload_error
+            )[:2000]
+        final_status = "failed" if upload_error else result.status
+        final_error_code = (
+            "ARTIFACT_UPLOAD_FAILED" if upload_error else result.error_code
+        )
+
+        async with session_scope(self.session_factory) as session:
+            node_run = await session.scalar(
+                select(ScheduleNodeRuns)
+                .where(
+                    ScheduleNodeRuns.node_run_id == payload["node_run_id"],
+                )
+                .with_for_update()
+            )
+            if node_run is None:
+                raise ValueError("schedule node run disappeared")
+            inbox = await session.get(
+                ConsumerInbox,
+                ("job-workers", event["event_id"]),
+                with_for_update=True,
+            )
+            if inbox is None:
+                raise ValueError("job worker inbox record disappeared")
+            if node_run.node_status not in TERMINAL_NODE_STATES:
+                node_run.node_status = final_status
+                node_run.finished_at = finished_at
+                node_run.duration_ms = duration_ms
+                node_run.exit_code = result.exit_code
+                node_run.message = (
+                    "节点执行成功"
+                    if final_status == "succeeded"
+                    else (error_message or "节点执行失败")
+                )[:2000]
+                node_run.metrics_json = {
+                    "log_size_bytes": len(result.logs),
+                    "result_size_bytes": len(result.result),
+                }
+                node_run.logs_object_id = log_id
+                node_run.result_object_id = result_id
+                node_run.state_version += 1
+                await add_outbox_event(
+                    session,
+                    event_type="job.node.finished",
+                    producer="job-worker",
+                    trace_id=event["trace_id"],
+                    aggregate_type="schedule_node_run",
+                    aggregate_id=node_run.node_run_id,
+                    idempotency_key=(
+                        f"{node_run.node_run_id}:{node_run.attempt_no}:finished"
+                    ),
+                    payload={
+                        "workspace_id": context["workspace_id"],
+                        "run_id": node_run.run_id,
+                        "node_run_id": node_run.node_run_id,
+                        "node_id": node_run.node_id,
+                        "versions_id": node_run.versions_id,
+                        "attempt_no": node_run.attempt_no,
+                        "node_status": node_run.node_status,
+                        "exit_code": node_run.exit_code,
+                        "started_at": event_time(
+                            node_run.started_at or started_at
+                        ),
+                        "finished_at": event_time(finished_at),
+                        "duration_ms": duration_ms,
+                        "logs_object_id": log_id,
+                        "result_object_id": result_id,
+                        "error_code": final_error_code,
+                        "error_message": error_message,
+                    },
+                )
+            self._finish_inbox(inbox)
+
+    async def _handle_node_finished(
+        self,
+        event: dict[str, Any],
+        message_id: str,
+    ) -> None:
+        if event.get("event_type") != "job.node.finished":
+            raise ValueError("unexpected event type")
+        payload = event["payload"]
+        async with session_scope(self.session_factory) as session:
+            inbox, should_process = await self._start_inbox(
+                session,
+                consumer_name="schedule-results",
+                event_id=event["event_id"],
+                message_id=message_id,
+            )
+            if not should_process:
+                return
+            run = await session.scalar(
+                select(ScheduleRuns)
+                .where(ScheduleRuns.run_id == payload["run_id"])
+                .with_for_update()
+            )
+            if run is None:
+                raise ValueError("schedule run does not exist")
+            if run.run_status not in TERMINAL_RUN_STATES:
+                await self._advance_run(
+                    session,
+                    run,
+                    trace_id=event["trace_id"],
+                )
+            self._finish_inbox(inbox)
+
+
+def build_object_store() -> Any:
+    return boto3.client(
+        "s3",
+        endpoint_url=os.getenv(
+            "RUSTFS_INTERNAL_ENDPOINT",
+            "http://rustfs:9000",
+        ),
+        aws_access_key_id=os.environ["RUSTFS_ACCESS_KEY"],
+        aws_secret_access_key=os.environ["RUSTFS_SECRET_KEY"],
+        region_name="us-east-1",
+    )
+
+
+def build_storage_http_client() -> httpx.AsyncClient:
+    return httpx.AsyncClient(
+        base_url=os.getenv("BACKEND_API_URL", "http://backend:8000"),
+        timeout=httpx.Timeout(60.0),
+    )
diff --git a/schedule/src/schedule/storage_client.py b/schedule/src/schedule/storage_client.py
new file mode 100644
index 0000000..3177b5a
--- /dev/null
+++ b/schedule/src/schedule/storage_client.py
@@ -0,0 +1,41 @@
+from __future__ import annotations
+
+import base64
+from typing import Any
+
+import httpx
+
+
+class SchedulerStorageClient:
+    def __init__(self, client: httpx.AsyncClient, service_token: str) -> None:
+        self.client = client
+        self.headers = {"X-Service-Token": service_token}
+
+    async def create_object(
+        self,
+        *,
+        workspace_id: str,
+        user_id: str,
+        usage_type: str,
+        file_name: str,
+        content_type: str,
+        content: bytes,
+        idempotency_key: str,
+    ) -> dict[str, Any]:
+        response = await self.client.post(
+            "/internal/v1/objects",
+            headers=self.headers,
+            json={
+                "workspace_id": workspace_id,
+                "user_id": user_id,
+                "usage_type": usage_type,
+                "file_name": file_name,
+                "content_type": content_type,
+                "content_base64": base64.b64encode(content).decode("ascii"),
+                "visibility": "workspace",
+                "is_immutable": True,
+                "idempotency_key": idempotency_key,
+            },
+        )
+        response.raise_for_status()
+        return response.json()["data"]
diff --git a/scripts/logs.ps1 b/scripts/logs.ps1
new file mode 100644
index 0000000..7a8925d
--- /dev/null
+++ b/scripts/logs.ps1
@@ -0,0 +1,3 @@
+$ErrorActionPreference = "Stop"
+Set-Location (Split-Path $PSScriptRoot -Parent)
+docker compose logs -f backend runtime schedule gateway
diff --git a/scripts/start.ps1 b/scripts/start.ps1
new file mode 100644
index 0000000..fca9a6b
--- /dev/null
+++ b/scripts/start.ps1
@@ -0,0 +1,12 @@
+$ErrorActionPreference = "Stop"
+Set-Location (Split-Path $PSScriptRoot -Parent)
+
+if (-not (Test-Path ".env")) {
+    Copy-Item ".env.example" ".env"
+    Write-Host "已从 .env.example 创建 .env，请按需修改密码。"
+}
+
+docker compose config | Out-Null
+docker compose up -d --build
+docker compose ps
+Write-Host "访问地址：http://127.0.0.1:8081"
diff --git a/scripts/stop.ps1 b/scripts/stop.ps1
new file mode 100644
index 0000000..933621e
--- /dev/null
+++ b/scripts/stop.ps1
@@ -0,0 +1,3 @@
+$ErrorActionPreference = "Stop"
+Set-Location (Split-Path $PSScriptRoot -Parent)
+docker compose down