feat:增加服务器接口模块

lib/models/user.dart

@@ -0,0 +1,28 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'user.g.dart';
+
+@JsonSerializable()
+class User {
+  final int id;
+  final String phone;
+  final String nickname;
+  final String avatarUrl;
+  final int gender;
+  final DateTime createTime;
+  final DateTime updateTime;
+
+  User({
+    required this.id,
+    required this.phone,
+    required this.nickname,
+    required this.avatarUrl,
+    required this.gender,
+    required this.createTime,
+    required this.updateTime,
+  });
+
+  factory User.fromJson(Map<String, dynamic> json) => _$UserFromJson(json);
+
+  Map<String, dynamic> toJson() => _$UserToJson(this);
+}