feat(service): integrate PackageInfoService for app metadata

- Add PackageInfoService import to bootstrap.dart
- Initialize PackageInfoServiceImpl in the bootstrap process
- Update AppGlobals to include packageInfoService

Author: fulleni

lib/bootstrap.dart

@@ -25,6 +25,7 @@ import 'package:flutter_news_app_mobile_client_full_source_code/app/config/confi
     as app_config;
 import 'package:flutter_news_app_mobile_client_full_source_code/app/services/demo_data_initializer_service.dart';
 import 'package:flutter_news_app_mobile_client_full_source_code/app/services/demo_data_migration_service.dart';
+import 'package:flutter_news_app_mobile_client_full_source_code/app/services/package_info_service.dart';
 import 'package:flutter_news_app_mobile_client_full_source_code/bloc_observer.dart';
 import 'package:flutter_news_app_mobile_client_full_source_code/shared/data/clients/country_inmemory_client.dart';
 import 'package:http_client/http_client.dart';
@@ -191,6 +192,9 @@ Future<Widget> bootstrap(
   // and InterstitialAdManager for BuildContext access.
   final navigatorKey = GlobalKey<NavigatorState>();
 
+  // Initialize PackageInfoService
+  final packageInfoService = PackageInfoServiceImpl(logger: logger);
+
   // 6. Initialize all other DataClients and Repositories.
   // These now also have a guaranteed valid httpClient.
   late final DataClient<Headline> headlinesClient;
@@ -453,5 +457,6 @@ Future<Widget> bootstrap(
     navigatorKey: navigatorKey,
     initialRemoteConfig: initialRemoteConfig,
     initialRemoteConfigError: initialRemoteConfigError,
+    packageInfoService: packageInfoService,
   );
 }