refactor(entity_details): inject InlineAdCacheService and remove AdService dependencies

- Inject InlineAdCacheService into EntityDetailsBloc for ad caching management
- Remove InlineAdCacheService instantiation within EntityDetailsBloc
- Remove AdService import from entity_details_page.dart
- Remove adService parameter from FeedAdLoaderWidget

Author: fulleni

lib/entity_details/bloc/entity_details_bloc.dart

@@ -24,13 +24,15 @@ class EntityDetailsBloc extends Bloc<EntityDetailsEvent, EntityDetailsState> {
     required AccountBloc accountBloc,
     required AppBloc appBloc,
     required FeedDecoratorService feedDecoratorService,
+    required InlineAdCacheService inlineAdCacheService,
   }) : _headlinesRepository = headlinesRepository,
        _topicRepository = topicRepository,
        _sourceRepository = sourceRepository,
        _countryRepository = countryRepository,
        _accountBloc = accountBloc,
        _appBloc = appBloc,
        _feedDecoratorService = feedDecoratorService,
+       _inlineAdCacheService = inlineAdCacheService,
        super(const EntityDetailsState()) {
     on<EntityDetailsLoadRequested>(_onEntityDetailsLoadRequested);
     on<EntityDetailsToggleFollowRequested>(
@@ -58,6 +60,7 @@ class EntityDetailsBloc extends Bloc<EntityDetailsEvent, EntityDetailsState> {
   final AccountBloc _accountBloc;
   final AppBloc _appBloc;
   final FeedDecoratorService _feedDecoratorService;
+  final InlineAdCacheService _inlineAdCacheService;
   late final StreamSubscription<AccountState> _accountBlocSubscription;
 
   static const _headlinesLimit = 10;
@@ -68,7 +71,7 @@ class EntityDetailsBloc extends Bloc<EntityDetailsEvent, EntityDetailsState> {
   ) async {
     // When loading a new entity's details, clear any previously cached ads
     // to ensure a fresh set of ads is displayed for the new content.
-    InlineAdCacheService().clearAllAds();
+    _inlineAdCacheService.clearAllAds();
     emit(
       state.copyWith(status: EntityDetailsStatus.loading, clearEntity: true),
     );

lib/entity_details/view/entity_details_page.dart

@@ -3,7 +3,6 @@
 import 'package:core/core.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:flutter_news_app_mobile_client_full_source_code/ads/ad_service.dart';
 import 'package:flutter_news_app_mobile_client_full_source_code/ads/interstitial_ad_manager.dart';
 import 'package:flutter_news_app_mobile_client_full_source_code/ads/models/ad_placeholder.dart';
 import 'package:flutter_news_app_mobile_client_full_source_code/ads/models/ad_theme_style.dart';
@@ -369,7 +368,6 @@ class _EntityDetailsViewState extends State<EntityDetailsView> {
 
                         return FeedAdLoaderWidget(
                           adPlaceholder: item,
-                          adService: context.read<AdService>(),
                           adThemeStyle: AdThemeStyle.fromTheme(
                             Theme.of(context),
                           ),