feat: login api

lib/domain/auth/auth.dart

@@ -0,0 +1,11 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:dartz/dartz.dart';
+
+import '../../common/api/api_failure.dart';
+
+part 'failures/auth_failure.dart';
+part 'repositories/i_auth_repository.dart';
+part 'entities/auth_entity.dart';
+part 'entities/user_entity.dart';
+
+part 'auth.freezed.dart';

lib/domain/auth/entities/auth_entity.dart

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+part of '../auth.dart';
+
+@freezed
+class Auth with _$Auth {
+  const Auth._();
+  const factory Auth({
+    required String token,
+    required DateTime expiresAt,
+    required User user,
+  }) = _Auth;
+
+  /// State kosong (misalnya untuk initial state di Bloc)
+  factory Auth.empty() => Auth(
+    token: '',
+    expiresAt: DateTime.fromMillisecondsSinceEpoch(0),
+    user: User.empty(),
+  );
+}

lib/domain/auth/entities/user_entity.dart

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+part of '../auth.dart';
+
+@freezed
+class User with _$User {
+  const User._();
+
+  const factory User({
+    required String id,
+    required String organizationId,
+    required String outletId,
+    required String name,
+    required String email,
+    required String role,
+    required Map<String, dynamic> permissions,
+    required bool isActive,
+    required DateTime createdAt,
+    required DateTime updatedAt,
+  }) = _User;
+
+  factory User.empty() => User(
+    id: '',
+    organizationId: '',
+    outletId: '',
+    name: '',
+    email: '',
+    role: '',
+    permissions: {},
+    isActive: false,
+    createdAt: DateTime.now(),
+    updatedAt: DateTime.now(),
+  );
+}

lib/domain/auth/failures/auth_failure.dart

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+part of '../auth.dart';
+
+@freezed
+sealed class AuthFailure with _$AuthFailure {
+  const factory AuthFailure.serverError(ApiFailure failure) = _ServerError;
+  const factory AuthFailure.unexpectedError() = _UnexpectedError;
+  const factory AuthFailure.dynamicErrorMessage(String erroMessage) =
+      _DynamicErrorMessage;
+}

lib/domain/auth/repositories/i_auth_repository.dart

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+part of '../auth.dart';
+
+abstract class IAuthRepository {
+  Future<Either<AuthFailure, Auth>> login({
+    required String email,
+    required String password,
+  });
+}