All operator- and developer-facing docs updated to reflect:
- The unified AsyncStorageBackend abstraction (s3 + local backends).
- The STORAGE_BACKEND toggle ("s3" default, "local" for dev /
single-node / air-gapped deployments).
- The 4-purpose-bucket layout (workspace / version / run_log / trash)
in both modes — 4 separate S3 buckets in s3 mode, 4 subdirectories
of LOCAL_STORAGE_BASE_DIR in local mode.
- The S3_* env var naming (was RUSTFS_*).
- The server-proxied upload flow (was browser-direct presign-PUT):
POST /internal/v1/uploads → PUT /internal/v1/uploads/{id} with
raw bytes → server calls backend.put().
- The factory helpers workspaces_root() (runtime's view of the
workspace bucket on disk) and rclone_remote_spec() (s3-mode mount
source).
- The "two settings describing the same thing" cleanup: the deleted
settings.workspace_root, settings.workspaces_root, and
settings.remote_bucket fields.
Files touched:
- API.md (§5 data-resource upload flow, §9 storage control plane,
§10 readiness example)
- ARCHITECTURE.md (storage layer diagram)
- CLAUDE.md (architecture description + volume-preservation note)
- DEVELOP.md (settings list, Storage section, "Wire a new bucket"
how-to, dev-export example, troubleshooting network hint)
- README.md (architecture diagram, container table, quick-start
credentials note, tear-down note, Storage layout section)
- REFACTOR_NOTES.md (final container list with s3 explanation)
- backend/README.md (storage backend description)
- migrations/data/README.md (step 11/12 record mentioning object
storage)
A handful of historical "RustFS" mentions are intentionally retained
where they name a specific S3-compatible product (e.g. as an example
in REFACTOR_NOTES.md's container list) or document the pre-2026
abstraction name (DEVELOP.md Storage section).
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