feat(library): 收藏与观看历史支持分页

test/support/fake_watch_history.dart

@@ -1,4 +1,7 @@
+// Author: fruit.com.cn
+
 import 'package:fruitshorts/core/data/repositories/watch_history_repository.dart';
+import 'package:fruitshorts/core/data/models/page_result.dart';
 import 'package:fruitshorts/core/data/models/watch_progress.dart';
 
 /// 记录每次进度读取/上报，方便断言"读了哪部剧、上报了哪一集"。
@@ -57,9 +60,19 @@ class FakeWatchHistory implements WatchHistoryRepository {
   }
 
   @override
-  Future<List<WatchProgress>> recent({int limit = 20}) async {
+  Future<PageResult<WatchProgress>> recent({
+    int pageIndex = 1,
+    int pageSize = 20,
+  }) async {
     if (failReads) throw StateError('history unavailable');
-    return recentRecords.take(limit).toList();
+    final offset = (pageIndex - 1) * pageSize;
+    if (offset >= recentRecords.length) {
+      return PageResult(total: recentRecords.length);
+    }
+    return PageResult(
+      total: recentRecords.length,
+      list: recentRecords.skip(offset).take(pageSize).toList(),
+    );
   }
 
   @override