fix(chat.py): add comment explaining the behavior of accepting and immediately closing the connection if the flow is not built yet

src/backend/langflow/api/v1/chat.py

@@ -19,6 +19,8 @@ async def chat(client_id: str, websocket: WebSocket):
         if client_id in chat_manager.in_memory_cache:
             await chat_manager.handle_websocket(client_id, websocket)
         else:
+            # We accept the connection but close it immediately
+            # if the flow is not built yet
             await websocket.accept()
             message = "Please, build the flow before sending messages"
             await websocket.close(code=status.WS_1011_INTERNAL_ERROR, reason=message)