test: add pytest verification suite and gitea ci workflow

src/server.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import asyncio
 import secrets
+from contextlib import asynccontextmanager
 from pathlib import Path
 from typing import Any
 
@@ -73,20 +74,22 @@ def create_app(config: AppConfig | None = None) -> FastAPI:
     if not app_config.screenjob_token:
         raise RuntimeError("SCREENJOB_TOKEN is required in environment or .env.")
 
-    app = FastAPI(title="ScreenJob API", version="1.0.0")
     db = HistoryDB(app_config.db_path)
     ws_hub = _WebSocketHub()
     manager = JobManager(config=app_config, db=db, broadcast=ws_hub.broadcast_from_thread)
 
+    @asynccontextmanager
+    async def lifespan(_: FastAPI):
+        ws_hub.set_loop(asyncio.get_running_loop())
+        yield
+
+    app = FastAPI(title="ScreenJob API", version="1.0.0", lifespan=lifespan)
+
     app.state.config = app_config
     app.state.db = db
     app.state.ws_hub = ws_hub
     app.state.manager = manager
 
-    @app.on_event("startup")
-    async def _on_startup() -> None:
-        ws_hub.set_loop(asyncio.get_running_loop())
-
     def _extract_token(
         authorization: str | None,
         x_screenjob_token: str | None,