feat: add setting for auto-lock fix: fix sideswipe

test/settings_service_test.dart

@@ -0,0 +1,36 @@
+import 'package:drift/native.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:kooltab2/database/app_database.dart';
+import 'package:kooltab2/models/settings.dart';
+import 'package:kooltab2/services/settings_service.dart';
+
+void main() {
+  late AppDatabase database;
+  late DriftSettingsService service;
+
+  setUp(() {
+    database = AppDatabase(NativeDatabase.memory());
+    service = DriftSettingsService(database: database);
+  });
+
+  tearDown(() async {
+    await database.close();
+  });
+
+  test('defaults auto-lock to enabled', () async {
+    final settings = await service.getSettings();
+
+    expect(settings, AppSettings.defaults);
+    expect(settings.autoLockEnabled, isTrue);
+  });
+
+  test('persists the auto-lock setting', () async {
+    await service.saveSettings(
+      AppSettings.defaults.copyWith(autoLockEnabled: false),
+    );
+
+    final settings = await service.getSettings();
+
+    expect(settings.autoLockEnabled, isFalse);
+  });
+}