新增user服务和gateway服务

timeline-user-service/src/main/java/com/timeline/user/dto/LoginResponse.java

@@ -0,0 +1,12 @@
+package com.timeline.user.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class LoginResponse {
+    private String token;
+    private String userId;
+    private String username;
+}