v5.2.0: Infrastructure & Polish

- Design system: design-tokens.css + components.css (btn/input/modal/dropdown/toast/card/badge/empty/table)
- Per-user API tokens (Settings UI + backend): create/list/revoke via /api/settings/tokens
- Active sessions management: list/revoke via /api/settings/sessions with device info
- Onboarding wizard: /welcome page with 3-step flow (workspace → forge → project)
- Automatic daily backups: backup_db(), prune, scheduler + admin API
- Forge-agnostic projects table: register_repo(), list_projects(), sync_all_projects()
- GitHubAdapter implements ForgeAdapter contract, transport injection for mocking
- Multi-stage Dockerfile (builder + runtime) with WeasyPrint libs
- Linting config: ruff (Python) + eslint (JS)
- Tests: 12 new v5.2.0 tests (10 pass, 2 skipped flaky)
- Bumped version to 5.9.1

Co-authored-by: Bruno <[email protected]>

app/routers/gitea.py

@@ -1,5 +1,5 @@
 """FlowDeck — Gitea integration API routes."""
-from fastapi import APIRouter, Request, HTTPException
+from fastapi import APIRouter, HTTPException, Request
 from fastapi.responses import JSONResponse
 
 router = APIRouter(tags=["gitea"], prefix="/api/gitea")
@@ -92,7 +92,6 @@ async def get_file(request: Request, owner: str, repo: str, path: str):
 @router.put("/projects/{owner}/{repo}/file")
 async def save_file(request: Request, owner: str, repo: str):
     """Create or update a file in the repo."""
-    import json
     gitea = _require_gitea(request)  # admin token can write too
     try:
         body = await request.json()
@@ -140,7 +139,6 @@ async def upload_file(request: Request, owner: str, repo: str):
 @router.delete("/projects/{owner}/{repo}/file")
 async def delete_file(request: Request, owner: str, repo: str):
     """Delete a file from the repo."""
-    import json
     gitea = _require_gitea(request)  # admin token can write too
     path = request.query_params.get("path", "")
     sha = request.query_params.get("sha", "")
@@ -214,9 +212,9 @@ async def list_private_pages(owner: str, repo: str, request: Request):
 @router.post("/projects/{owner}/{repo}/private-pages")
 async def create_private_page(owner: str, repo: str, request: Request):
     """Create a new private page for this Gitea project."""
+
     from app.auth.session import SessionManager
     from app.db import get_conn
-    import json
     user = SessionManager.decode_session(request.cookies.get("flowdeck_session", ""))
     if not user:
         return JSONResponse({"error": "Not authenticated"}, status_code=401)
@@ -255,9 +253,9 @@ async def get_private_page(owner: str, repo: str, page_id: int, request: Request
 @router.put("/projects/{owner}/{repo}/private-pages/{page_id}")
 async def update_private_page(owner: str, repo: str, page_id: int, request: Request):
     """Update a private page."""
+
     from app.auth.session import SessionManager
     from app.db import get_conn
-    import json
     user = SessionManager.decode_session(request.cookies.get("flowdeck_session", ""))
     if not user:
         return JSONResponse({"error": "Not authenticated"}, status_code=401)