fix: sync program status updates

backend/routes/streams.py

@@ -205,6 +205,7 @@ async def catalog_events(request: Request, db: AsyncSession = Depends(get_db)):
     async def events():
         previous = None
         while not await request.is_disconnected():
+            db.expire_all()
             streams = await StreamService(db).get_public_streams()
             payload = json.dumps(
                 [_serialize(stream, include_private=False) for stream in streams],