refactor: update user serialization in Yggdrasil handler to use SerializeUser for improved properties handling

internal/handler/yggdrasil_handler.go

@@ -234,10 +234,8 @@ func Authenticate(c *gin.Context) {
 		response.SelectedProfile = service.SerializeProfile(db, loggerInstance, redisClient, *selectedProfile)
 	}
 	if request.RequestUser {
-		response.User = map[string]interface{}{
-			"id":         userId,
-			"properties": user.Properties,
-		}
+		// 使用 SerializeUser 来正确处理 Properties 字段
+		response.User = service.SerializeUser(loggerInstance, user, UUID)
 	}
 
 	// 返回认证响应