docs: add copyright headers to all service files

All service files now include proper copyright headers as required by the project's validation tests.

Author: it5prasoon

lib/src/core/services/audio_player_service/audio_player_service.dart

@@ -1,3 +1,8 @@
+// Copyright 2021 BBK Development. All rights reserved.
+// Copyright 2026 CodeShipping. All rights reserved.
+// Use of this source code is governed by a GPL-style license that can be found
+// in the LICENSE file.
+
 import 'dart:developer';
 
 import 'package:just_audio/just_audio.dart';

lib/src/core/services/launch_review_service/launch_review_service.dart

@@ -1,3 +1,8 @@
+// Copyright 2021 BBK Development. All rights reserved.
+// Copyright 2026 CodeShipping. All rights reserved.
+// Use of this source code is governed by a GPL-style license that can be found
+// in the LICENSE file.
+
 import 'dart:developer';
 
 import 'package:in_app_review/in_app_review.dart';

lib/src/core/services/photo_manager_service/photo_manager_service.dart

@@ -1,3 +1,8 @@
+// Copyright 2021 BBK Development. All rights reserved.
+// Copyright 2026 CodeShipping. All rights reserved.
+// Use of this source code is governed by a GPL-style license that can be found
+// in the LICENSE file.
+
 import 'dart:developer';
 
 import 'package:flutter/foundation.dart';

lib/src/core/services/shared_preferences_service/shared_preferences_service.dart

@@ -1,3 +1,8 @@
+// Copyright 2021 BBK Development. All rights reserved.
+// Copyright 2026 CodeShipping. All rights reserved.
+// Use of this source code is governed by a GPL-style license that can be found
+// in the LICENSE file.
+
 import 'dart:developer';
 
 import 'package:shared_preferences/shared_preferences.dart';

lib/src/core/services/url_launcher_service/url_launcher_service.dart

@@ -1,3 +1,8 @@
+// Copyright 2021 BBK Development. All rights reserved.
+// Copyright 2026 CodeShipping. All rights reserved.
+// Use of this source code is governed by a GPL-style license that can be found
+// in the LICENSE file.
+
 import 'dart:developer';
 
 import 'package:flutter/foundation.dart';

lib/src/core/services/video_player_service/video_player_service.dart

@@ -1,3 +1,8 @@
+// Copyright 2021 BBK Development. All rights reserved.
+// Copyright 2026 CodeShipping. All rights reserved.
+// Use of this source code is governed by a GPL-style license that can be found
+// in the LICENSE file.
+
 import 'dart:developer';
 import 'dart:io';
 

lib/src/core/services/wakelock_service/wakelock_service.dart

@@ -1,3 +1,8 @@
+// Copyright 2021 BBK Development. All rights reserved.
+// Copyright 2026 CodeShipping. All rights reserved.
+// Use of this source code is governed by a GPL-style license that can be found
+// in the LICENSE file.
+
 import 'dart:developer';
 
 import 'package:wakelock_plus/wakelock_plus.dart';