cleanup

app/nodes.py

@@ -1,4 +1,4 @@
-from utils import detect_file_type
+from utils import detect_file_type, convert_context_to_list
 from models import GraphState
 from datetime import datetime
 import tempfile
@@ -344,6 +344,10 @@ async def generate_node_streaming(state: GraphState) -> Generator[GraphState, No
                                 except json.JSONDecodeError:
                                     raise Exception(data_content)
         
+        except Exception as fastapi_error:
+            # Handle FastAPI-specific errors 
+            logger.warning(f"FastAPI endpoint failed: {str(fastapi_error)}")
+            raise fastapi_error
         
     except Exception as e:
         duration = (datetime.now() - start_time).total_seconds()