Feature Pack with bug fixes for V2

test/services/ghost_mode_settings_test.dart

@@ -0,0 +1,78 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:focusgram/services/settings_service.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUp(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  group('SettingsService — Ghost mode toggle', () {
+    test('ghostMode defaults to false', () async {
+      final s = SettingsService();
+      await s.init();
+      expect(s.ghostMode, isFalse);
+    });
+
+    test('ghostMode toggle persists and loads on restart', () async {
+      final s = SettingsService();
+      await s.init();
+      await s.setGhostMode(true);
+
+      expect(s.ghostMode, isTrue);
+
+      // Simulate restart by creating a new instance with saved prefs
+      final s2 = SettingsService();
+      await s2.init();
+      expect(s2.ghostMode, isTrue);
+    });
+
+    test('ghostMode toggles off correctly', () async {
+      final s = SettingsService();
+      await s.init();
+      await s.setGhostMode(true);
+      expect(s.ghostMode, isTrue);
+
+      await s.setGhostMode(false);
+      expect(s.ghostMode, isFalse);
+    });
+  });
+
+  group('SettingsService — Grayscale persistence', () {
+    test('grayscaleEnabled defaults to false', () async {
+      final s = SettingsService();
+      await s.init();
+      expect(s.grayscaleEnabled, isFalse);
+    });
+
+    test('setGrayscaleEnabled persists and isActiveNow returns true', () async {
+      final s = SettingsService();
+      await s.init();
+      await s.setGrayscaleEnabled(true);
+
+      expect(s.grayscaleEnabled, isTrue);
+      expect(s.isGrayscaleActiveNow, isTrue);
+
+      // Simulate restart
+      final s2 = SettingsService();
+      await s2.init();
+      expect(s2.grayscaleEnabled, isTrue);
+    });
+
+    test('isGrayscaleActiveNow returns true when toggle is on', () async {
+      final s = SettingsService();
+      await s.init();
+      await s.setGrayscaleEnabled(true);
+      expect(s.isGrayscaleActiveNow, isTrue);
+    });
+
+    test('isGrayscaleActiveNow returns false when toggle off and no schedules',
+        () async {
+      final s = SettingsService();
+      await s.init();
+      expect(s.isGrayscaleActiveNow, isFalse);
+    });
+  });
+}