refactor(apps): 主题系统迁移至 ColorScheme + 扩展架构并支持 Dark Mode

apps/lib/features/todo/data/todo_repository.dart

@@ -1,57 +1,49 @@
 import 'dart:async';
 
-import '../../../core/cache/cache_entry.dart';
-import '../../../core/cache/cache_invalidator.dart';
-import '../../../core/cache/hybrid_cache_store.dart';
+import '../../../data/cache/cache_entry.dart';
+import '../../../data/cache/cache_invalidator.dart';
+import '../../../data/cache/cache_policy.dart';
+import '../../../data/cache/cached_repository.dart';
 import 'todo_api.dart';
 
-class TodoRepository {
+class TodoRepository extends CachedRepository<List<TodoResponse>> {
   static const String pendingListKey = 'todo:list:pending';
 
   final TodoApi api;
-  final HybridCacheStore store;
   final CacheInvalidator invalidator;
-  final DateTime Function() now;
 
   TodoRepository({
     required this.api,
-    required this.store,
+    required super.store,
     required this.invalidator,
-    DateTime Function()? now,
-  }) : now = now ?? DateTime.now;
+    super.now,
+  }) : super(
+         policy: const CachePolicy(
+           softTtl: Duration(days: 3650),
+           hardTtl: Duration(days: 3650),
+           minRefreshInterval: Duration(days: 3650),
+         ),
+       );
 
   Future<List<TodoResponse>> getPendingTodos({
     bool forceRefresh = false,
   }) async {
-    if (!forceRefresh) {
-      final cached = await store.read<CacheEntry<List<TodoResponse>>>(
-        pendingListKey,
-      );
-      if (cached != null) {
-        return cached.value;
-      }
-    }
-
-    final remote = await api.getPendingTodos();
-    await store.write<CacheEntry<List<TodoResponse>>>(
-      pendingListKey,
-      CacheEntry(value: remote, fetchedAt: now()),
+    return getOrLoad(
+      key: pendingListKey,
+      forceRefresh: forceRefresh,
+      loadFromRemote: api.getPendingTodos,
     );
-    return remote;
   }
 
   Future<void> completeTodo(String id) async {
-    final cached = await store.read<CacheEntry<List<TodoResponse>>>(
+    final CacheEntry<List<TodoResponse>>? cached = await readCacheEntry(
       pendingListKey,
     );
     if (cached != null) {
       final next = cached.value
           .where((todo) => todo.id != id)
           .toList(growable: false);
-      await store.write<CacheEntry<List<TodoResponse>>>(
-        pendingListKey,
-        CacheEntry(value: next, fetchedAt: now()),
-      );
+      await writeCacheEntry(pendingListKey, next);
     }
 
     try {