重构代理解析流程，引入端口混合协议转发

server/server.go

@@ -66,11 +66,9 @@ func Start() {
 
 	timeout, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
-	wgCh := utils.ChanWgWait(timeout, &wg)
-	close(wgCh)
 
 	select {
-	case <-wgCh:
+	case <-utils.ChanWgWait(timeout, &wg):
 		slog.Info("服务已退出")
 	case <-timeout.Done():
 		slog.Warn("退出超时，强制退出")