feat: 打通网关和用户注册的逻辑，添加用户注册 HTTP 端点

backend/gateway/cmd/main.go

@@ -7,7 +7,9 @@ import (
 
 	"backend/gateway/internal/config"
 	"backend/gateway/internal/router"
+	"backend/gateway/internal/service"
 	"backend/gateway/internal/ws"
+	"backend/shared/pkg/logger"
 )
 
 func main() {
@@ -21,14 +23,22 @@ func main() {
 	hub := ws.NewHub()
 	go hub.Run()
 
+	// 初始化用户服务
+	userService, err := service.NewUserService(cfg)
+	if err != nil {
+		log.Fatalf("Failed to initialize user service: %v", err)
+	}
+	logger.Info("User service initialized successfully")
+
 	// 创建路由器
-	r := router.NewRouter(hub)
+	r := router.NewRouter(hub, userService)
 
 	// 启动服务器
 	serverAddr := fmt.Sprintf(":%d", cfg.Server.Port)
 	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)