cleanup

src/server/fastapi_app.py

@@ -91,13 +91,19 @@ def get_series_app() -> Optional[SeriesApp]:
 
 
 @app.on_event("startup")
-async def startup_event():
+async def startup_event() -> None:
     """Initialize application on startup."""
     try:
         # Initialize SeriesApp with configured directory and store it on
         # application state so it can be injected via dependencies.
         if settings.anime_directory:
             app.state.series_app = SeriesApp(settings.anime_directory)
+        else:
+            # Log warning when anime directory is not configured
+            print(
+                "WARNING: ANIME_DIRECTORY not configured. "
+                "Some features may be unavailable."
+            )
         
         # Initialize progress service with websocket callback
         progress_service = get_progress_service()
@@ -105,7 +111,7 @@ async def startup_event():
         
         async def broadcast_callback(
             message_type: str, data: dict, room: str
-        ):
+        ) -> None:
             """Broadcast progress updates via WebSocket."""
             message = {
                 "type": message_type,
@@ -118,6 +124,7 @@ async def startup_event():
         print("FastAPI application started successfully")
     except Exception as e:
         print(f"Error during startup: {e}")
+        raise  # Re-raise to prevent app from starting in broken state
 
 
 @app.on_event("shutdown")