feat(PORT-004A): add workspace bootstrap and scoped settings

app/main.py

@@ -12,10 +12,12 @@ from typing import Any
 
 from fastapi import FastAPI, Request, WebSocket, WebSocketDisconnect
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import RedirectResponse
 from nicegui import ui  # type: ignore[attr-defined]
 
 import app.pages  # noqa: F401
 from app.api.routes import router as api_router
+from app.models.workspace import WORKSPACE_COOKIE, get_workspace_repository
 from app.services.cache import CacheService
 from app.services.data_service import DataService
 from app.services.runtime import set_data_service
@@ -146,6 +148,21 @@ async def health(request: Request) -> dict[str, Any]:
     }
 
 
+@app.get("/workspaces/bootstrap", tags=["workspace"])
+async def bootstrap_workspace() -> RedirectResponse:
+    workspace_id = get_workspace_repository().create_workspace_id()
+    response = RedirectResponse(url=f"/{workspace_id}", status_code=303)
+    response.set_cookie(
+        key=WORKSPACE_COOKIE,
+        value=workspace_id,
+        httponly=True,
+        samesite="lax",
+        max_age=60 * 60 * 24 * 365,
+        path="/",
+    )
+    return response
+
+
 @app.websocket("/ws/updates")
 async def websocket_updates(websocket: WebSocket) -> None:
     manager: ConnectionManager = websocket.app.state.ws_manager