Add Docker build workflow and mobile application

bus_terminal/lib/models/user.dart

@@ -0,0 +1,46 @@
+/// User model
+class User {
+  final int id;
+  final String userCode;
+  final String? job;
+
+  User({
+    required this.id,
+    required this.userCode,
+    this.job,
+  });
+
+  factory User.fromJson(Map<String, dynamic> json) {
+    return User(
+      id: json['id'] as int,
+      userCode: json['userCode'] as String,
+      job: json['job'] as String?,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'userCode': userCode,
+      'job': job,
+    };
+  }
+}
+
+/// Login response model
+class AuthResponse {
+  final String token;
+  final User user;
+
+  AuthResponse({
+    required this.token,
+    required this.user,
+  });
+
+  factory AuthResponse.fromJson(Map<String, dynamic> json) {
+    return AuthResponse(
+      token: json['token'] as String,
+      user: User.fromJson(json['user'] as Map<String, dynamic>),
+    );
+  }
+}