fix: 客户端和网关只能通过长连接方式通信，移除 HTTP 注册端点

backend/gateway/cmd/main.go

@@ -19,10 +19,6 @@ func main() {
 		log.Fatalf("Failed to load config: %v", err)
 	}
 
-	// 创建 WebSocket Hub
-	hub := ws.NewHub()
-	go hub.Run()
-
 	// 初始化用户服务
 	userService, err := service.NewUserService(cfg)
 	if err != nil {
@@ -30,6 +26,10 @@ func main() {
 	}
 	logger.Info("User service initialized successfully")
 
+	// 创建 WebSocket Hub
+	hub := ws.NewHub(userService)
+	go hub.Run()
+
 	// 创建路由器
 	r := router.NewRouter(hub, userService)
 
@@ -38,7 +38,6 @@ func main() {
 	log.Printf("Gateway service starting on %s", serverAddr)
 	log.Printf("WebSocket endpoint: ws://localhost%s/ws", serverAddr)
 	log.Printf("Health check: http://localhost%s/health", serverAddr)
-	log.Printf("User register endpoint: http://localhost%s/api/user/register", serverAddr)
 
 	if err := http.ListenAndServe(serverAddr, r.SetupRoutes()); err != nil {
 		log.Fatalf("Failed to start server: %v", err)