fix: serialnet_loop 改为直接查 tb_serialnet，不依赖 _registry

src/server.py

@@ -70,6 +70,7 @@ class EDCProtocol:
         msg = parse_message(data)
         if msg is None:
             return
+        logger.info(f"UDP {msg} from {addr}")
 
         method = msg.get("Method", "")
         logger.debug(f"UDP {method} from {addr}")
@@ -108,6 +109,7 @@ async def handle_tcp_client(reader: asyncio.StreamReader,
 
     async def process_message(msg: dict):
         """处理单条消息并返回响应文本"""
+        logger.info(f"TCP get_rcv {msg} from {addr}") 
         method = msg.get("Method", "")
         logger.debug(f"TCP {method} from {addr}")