FastAPI WebSocket断开连接：代码=1006，原因=''

解决方案

1. 95% 成功率 在WebSocket端点中捕获断开异常

   from fastapi import WebSocketDisconnect
   async def websocket_endpoint(websocket: WebSocket):
       await websocket.accept()
       try:
           while True:
               data = await websocket.receive_text()
       except WebSocketDisconnect:
           print('Client disconnected')

2. 85% 成功率 实现自动重连逻辑

   async def connect_with_retry():
       while True:
           try:
               await websocket.accept()
               break
           except WebSocketDisconnect:
               await asyncio.sleep(1)