fix：参考金值，研听，研值工程通用通用工程公共能力，重点对比网络请求、登录认证、状态管理、本地存储、WebView、推送、版本更新、一键登录、主题/UI 等模块，确定后续统一整改方案

lib/features/ads/application/splash_ad_controller.dart

@@ -4,7 +4,7 @@ import 'dart:io' show File;
 import 'package:flutter_cache_manager/flutter_cache_manager.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 
-import '../../../common/storage/storage_service.dart';
+import '../../../common/storage/preferences_storage.dart';
 import '../data/ads_api_client.dart';
 
 class SplashAdEntry {
@@ -33,12 +33,13 @@ class SplashAdEntry {
 }
 
 class SplashAdController {
-  SplashAdController(this._api);
+  SplashAdController(this._api, this._preferences);
   final AdsApiClient _api;
+  final PreferencesStorage _preferences;
   static const _entryKey = 'ads.splash.entry';
   static const _dailyKey = 'ads.splash.daily';
   Future<SplashAdEntry?> coldLaunchDecision() async {
-    final raw = StorageService.to.preferences.getString(_entryKey);
+    final raw = _preferences.getString(_entryKey);
     if (raw == null) return null;
     try {
       final entry = SplashAdEntry.fromJson(
@@ -55,7 +56,7 @@ class SplashAdController {
   }
 
   bool _underCap(SplashAdEntry entry) {
-    final value = StorageService.to.preferences.getString(_dailyKey);
+    final value = _preferences.getString(_dailyKey);
     final today = DateTime.now().toIso8601String().substring(0, 10);
     if (value == null) return true;
     final map = Map<String, dynamic>.from(jsonDecode(value) as Map);
@@ -68,13 +69,13 @@ class SplashAdController {
       entry.assetPath != null && await File(entry.assetPath!).exists();
   Future<void> markShown(SplashAdEntry entry) async {
     final today = DateTime.now().toIso8601String().substring(0, 10);
-    final raw = StorageService.to.preferences.getString(_dailyKey);
+    final raw = _preferences.getString(_dailyKey);
     var count = 0;
     if (raw != null) {
       final m = Map<String, dynamic>.from(jsonDecode(raw) as Map);
       if (m['date'] == today) count = (m['count'] as num?)?.toInt() ?? 0;
     }
-    await StorageService.to.preferences.setString(
+    await _preferences.setString(
       _dailyKey,
       jsonEncode({'date': today, 'count': count + 1}),
     );
@@ -92,7 +93,7 @@ class SplashAdController {
         result.ad!.imageUrl,
       );
       if (!await file.exists()) return;
-      await StorageService.to.preferences.setString(
+      await _preferences.setString(
         _entryKey,
         jsonEncode(
           SplashAdEntry(
@@ -115,14 +116,17 @@ class SplashAdController {
   Future<void> skip(SplashAdEntry entry) => _report(entry.ad, 'ad_skip');
   Future<void> clearCache() async {
     await _clearEntry();
-    await StorageService.to.preferences.remove(_dailyKey);
+    await _preferences.remove(_dailyKey);
   }
 
   Future<void> _clearEntry() async {
-    await StorageService.to.preferences.remove(_entryKey);
+    await _preferences.remove(_entryKey);
   }
 }
 
 final splashAdControllerProvider = Provider(
-  (ref) => SplashAdController(ref.watch(adsApiClientProvider)),
+  (ref) => SplashAdController(
+    ref.watch(adsApiClientProvider),
+    ref.watch(preferencesStorageProvider),
+  ),
 );