Add API contract Dart models

app/lib/src/features/auth/domain/auth_models.dart

@@ -0,0 +1,238 @@
+import '../../directory/domain/employee.dart';
+
+class LoginDeviceInfo {
+  const LoginDeviceInfo({
+    required this.platform,
+    required this.appVersion,
+    required this.deviceName,
+  });
+
+  final String platform;
+  final String appVersion;
+  final String deviceName;
+
+  factory LoginDeviceInfo.fromJson(Map<String, dynamic> json) {
+    return LoginDeviceInfo(
+      platform: json['platform'] as String? ?? '',
+      appVersion: json['appVersion'] as String? ?? '',
+      deviceName: json['deviceName'] as String? ?? '',
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'platform': platform,
+      'appVersion': appVersion,
+      'deviceName': deviceName,
+    };
+  }
+}
+
+class PhoneLoginRequest {
+  const PhoneLoginRequest({required this.phoneNumber, required this.device});
+
+  final String phoneNumber;
+  final LoginDeviceInfo device;
+
+  Map<String, dynamic> toJson() {
+    return {'phoneNumber': phoneNumber, 'device': device.toJson()};
+  }
+}
+
+class LoginUser {
+  const LoginUser({
+    required this.id,
+    required this.name,
+    required this.phoneNumber,
+    required this.tenantId,
+    required this.tenantName,
+    required this.tenantSlug,
+    this.department,
+    this.grade,
+    this.position,
+    this.jobTitle,
+  });
+
+  final String id;
+  final String name;
+  final String phoneNumber;
+  final String tenantId;
+  final String tenantName;
+  final String tenantSlug;
+  final String? department;
+  final String? grade;
+  final String? position;
+  final String? jobTitle;
+
+  factory LoginUser.fromJson(Map<String, dynamic> json) {
+    return LoginUser(
+      id: json['id'] as String? ?? '',
+      name: json['name'] as String? ?? '',
+      phoneNumber: json['phoneNumber'] as String? ?? '',
+      tenantId: json['tenantId'] as String? ?? '',
+      tenantName: json['tenantName'] as String? ?? '',
+      tenantSlug: json['tenantSlug'] as String? ?? '',
+      department: json['department'] as String?,
+      grade: json['grade'] as String?,
+      position: json['position'] as String?,
+      jobTitle: json['jobTitle'] as String?,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'name': name,
+      'phoneNumber': phoneNumber,
+      'tenantId': tenantId,
+      'tenantName': tenantName,
+      'tenantSlug': tenantSlug,
+      'department': department,
+      'grade': grade,
+      'position': position,
+      'jobTitle': jobTitle,
+    };
+  }
+}
+
+class PhoneLoginResponse {
+  const PhoneLoginResponse({
+    required this.status,
+    required this.token,
+    required this.expiresAt,
+    required this.user,
+  });
+
+  final String status;
+  final String token;
+  final DateTime expiresAt;
+  final LoginUser user;
+
+  factory PhoneLoginResponse.fromJson(Map<String, dynamic> json) {
+    return PhoneLoginResponse(
+      status: json['status'] as String? ?? '',
+      token: json['token'] as String? ?? '',
+      expiresAt: DateTime.parse(json['expiresAt'] as String),
+      user: LoginUser.fromJson(json['user'] as Map<String, dynamic>? ?? {}),
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'status': status,
+      'token': token,
+      'expiresAt': expiresAt.toUtc().toIso8601String(),
+      'user': user.toJson(),
+    };
+  }
+}
+
+class UserPermissions {
+  const UserPermissions({
+    required this.directory,
+    required this.organization,
+    required this.favoritesSync,
+  });
+
+  final bool directory;
+  final bool organization;
+  final bool favoritesSync;
+
+  factory UserPermissions.fromJson(Map<String, dynamic> json) {
+    return UserPermissions(
+      directory: json['directory'] as bool? ?? false,
+      organization: json['organization'] as bool? ?? false,
+      favoritesSync: json['favoritesSync'] as bool? ?? false,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'directory': directory,
+      'organization': organization,
+      'favoritesSync': favoritesSync,
+    };
+  }
+}
+
+class CurrentUser {
+  const CurrentUser({
+    required this.id,
+    required this.name,
+    required this.phoneNumber,
+    required this.email,
+    required this.tenantId,
+    required this.tenantName,
+    required this.tenantSlug,
+    required this.permissions,
+    this.department,
+    this.grade,
+    this.position,
+    this.jobTitle,
+  });
+
+  final String id;
+  final String name;
+  final String phoneNumber;
+  final String email;
+  final String tenantId;
+  final String tenantName;
+  final String tenantSlug;
+  final UserPermissions permissions;
+  final String? department;
+  final String? grade;
+  final String? position;
+  final String? jobTitle;
+
+  factory CurrentUser.fromJson(Map<String, dynamic> json) {
+    return CurrentUser(
+      id: json['id'] as String? ?? '',
+      name: json['name'] as String? ?? '',
+      phoneNumber: json['phoneNumber'] as String? ?? '',
+      email: json['email'] as String? ?? '',
+      tenantId: json['tenantId'] as String? ?? '',
+      tenantName: json['tenantName'] as String? ?? '',
+      tenantSlug: json['tenantSlug'] as String? ?? '',
+      permissions: UserPermissions.fromJson(
+        json['permissions'] as Map<String, dynamic>? ?? {},
+      ),
+      department: json['department'] as String?,
+      grade: json['grade'] as String?,
+      position: json['position'] as String?,
+      jobTitle: json['jobTitle'] as String?,
+    );
+  }
+
+  Employee toEmployee() {
+    return Employee(
+      id: id,
+      name: name,
+      phoneNumber: phoneNumber,
+      email: email,
+      tenantId: tenantId,
+      tenantName: tenantName,
+      tenantSlug: tenantSlug,
+      department: department,
+      grade: grade,
+      position: position,
+      jobTitle: jobTitle,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'name': name,
+      'phoneNumber': phoneNumber,
+      'email': email,
+      'tenantId': tenantId,
+      'tenantName': tenantName,
+      'tenantSlug': tenantSlug,
+      'department': department,
+      'grade': grade,
+      'position': position,
+      'jobTitle': jobTitle,
+      'permissions': permissions.toJson(),
+    };
+  }
+}