fix: cleanup rtf on pipeline finish

api/services/pipecat/realtime_feedback_observer.py

@@ -121,6 +121,10 @@ class RealtimeFeedbackObserver(BaseObserver):
         self._clock_start_time = None
         self._pts_start_time = None
 
+    async def cleanup(self):
+        """Clean up resources. Must be called when the observer is no longer needed."""
+        await self._cancel_clock_task()
+
     async def _handle_interruption(self):
         """Handle interruption by clearing queued bot text.
 

api/services/pipecat/run_pipeline.py

@@ -913,4 +913,5 @@ async def _run_pipeline(
     except asyncio.CancelledError:
         logger.warning("Received CancelledError in _run_pipeline")
     finally:
+        await feedback_observer.cleanup()
         logger.debug(f"Cleaned up context providers for workflow run {workflow_run_id}")