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/common/storage/preferences_storage.dart

@@ -0,0 +1,29 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'storage_service.dart';
+
+/// Typed boundary for non-sensitive preferences and display caches.
+///
+/// Feature code depends on this class instead of constructing or retaining a
+/// [SharedPreferences] instance.
+class PreferencesStorage {
+  const PreferencesStorage(this._preferences);
+
+  final SharedPreferences _preferences;
+
+  bool getBool(String key, {bool defaultValue = false}) =>
+      _preferences.getBool(key) ?? defaultValue;
+  String? getString(String key) => _preferences.getString(key);
+  bool containsKey(String key) => _preferences.containsKey(key);
+
+  Future<void> setBool(String key, bool value) =>
+      _preferences.setBool(key, value);
+  Future<void> setString(String key, String value) =>
+      _preferences.setString(key, value);
+  Future<void> remove(String key) => _preferences.remove(key);
+}
+
+final preferencesStorageProvider = Provider<PreferencesStorage>(
+  (ref) => PreferencesStorage(StorageService.to.preferences),
+);