feat: add fs-backend service

fs-backend/app/core/__init__.py

@@ -0,0 +1,3 @@
+"""
+核心模块初始化
+"""

fs-backend/app/core/config.py

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+"""
+应用配置模块
+"""
+from pydantic_settings import BaseSettings
+from typing import List
+
+
+class Settings(BaseSettings):
+    """应用配置"""
+
+    # 工作空间基础路径
+    BASE_WORKSPACE: str = "/Users/mac/test/workspace"
+
+    # 可通过环境变量覆盖：export BASE_WORKSPACE=/custom/path
+
+    # CORS 配置
+    CORS_ORIGINS: List[str] = ["*"]
+    # CORS_ORIGINS: List[str] = ["http://localhost:5173", "http://127.0.0.1:5173"]
+
+    # 项目名验证正则：仅允许中英文、数字、下划线、横杠
+    PROJECT_NAME_PATTERN: str = r"^[\w一-龥\-]+$"
+
+    class Config:
+        env_file = ".env"
+        env_file_encoding = "utf-8"
+
+
+settings = Settings()