Refine data management and collection workflows

backend/app/main.py

@@ -9,7 +9,12 @@ from app.api.v1 import websocket
 from app.core.config import settings
 from app.core.websocket.broadcaster import broadcaster
 from app.db.session import init_db
-from app.services.scheduler import start_scheduler, stop_scheduler, sync_scheduler_with_datasources
+from app.services.scheduler import (
+    cleanup_stale_running_tasks,
+    start_scheduler,
+    stop_scheduler,
+    sync_scheduler_with_datasources,
+)
 
 
 class WebSocketCORSMiddleware(BaseHTTPMiddleware):
@@ -26,6 +31,7 @@ class WebSocketCORSMiddleware(BaseHTTPMiddleware):
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     await init_db()
+    await cleanup_stale_running_tasks()
     start_scheduler()
     await sync_scheduler_with_datasources()
     broadcaster.start()