fix: 修复 server 包 None 网络类型启动阻塞的问题。增加传入不支持网络类型将导致 panic 的特性。优化 WebSocket 服务器将不再使用 http.DefaultMuxServer，转而使用 http.NewServeMux

server/network.go

@@ -103,6 +103,7 @@ func (n Network) adaptation(srv *Server) <-chan error {
 	switch n {
 	case NetworkNone:
 		srv.addr = "-"
+		state <- nil
 	case NetworkTcp:
 		n.gNetMode(state, srv)
 	case NetworkTcp4:
@@ -125,6 +126,8 @@ func (n Network) adaptation(srv *Server) <-chan error {
 		n.kcpMode(state, srv)
 	case NetworkGRPC:
 		n.grpcMode(state, srv)
+	default:
+		state <- fmt.Errorf("unsupported network mode: %s", n)
 	}
 	return state
 }
@@ -248,7 +251,8 @@ func (n Network) websocketMode(state chan<- error, srv *Server) {
 	if srv.websocketUpgrader == nil {
 		srv.websocketUpgrader = DefaultWebsocketUpgrader()
 	}
-	http.HandleFunc(pattern, func(writer http.ResponseWriter, request *http.Request) {
+	mux := http.NewServeMux()
+	mux.HandleFunc(pattern, func(writer http.ResponseWriter, request *http.Request) {
 		ip := request.Header.Get("X-Real-IP")
 		ws, err := srv.websocketUpgrader.Upgrade(writer, request, nil)
 		if err != nil {
@@ -304,17 +308,17 @@ func (n Network) websocketMode(state chan<- error, srv *Server) {
 			srv.PushPacketMessage(conn, messageType, packet)
 		}
 	})
-	go func(lis *listener) {
+	go func(lis *listener, mux *http.ServeMux) {
 		var err error
 		if len(lis.srv.certFile)+len(lis.srv.keyFile) > 0 {
-			err = http.ServeTLS(lis, nil, lis.srv.certFile, lis.srv.keyFile)
+			err = http.ServeTLS(lis, mux, lis.srv.certFile, lis.srv.keyFile)
 		} else {
-			err = http.Serve(lis, nil)
+			err = http.Serve(lis, mux)
 		}
 		if err != nil {
 			super.TryWriteChannel(lis.state, err)
 		}
-	}((&listener{srv: srv, Listener: l, state: state}).init())
+	}((&listener{srv: srv, Listener: l, state: state}).init(), mux)
 }
 
 // IsSocket 返回当前服务器的网络模式是否为 Socket 模式