refactor(app): 观看历史统一分页契约并移除 limit

fruitshorts-module-playback/src/main/java/com/fruitshorts/playback/service/WatchProgressService.java

@@ -42,7 +42,6 @@ import java.util.Objects;
 public class WatchProgressService {
 
     private static final long FINISH_THRESHOLD_MS = 1000L;
-    private static final int DEFAULT_PAGE_SIZE = 20;
     private static final int MAX_PAGE_SIZE = 100;
 
     private final WatchProgressMapper progressMapper;
@@ -116,13 +115,7 @@ public class WatchProgressService {
         return progress == null ? null : toResp(progress);
     }
 
-    /** 最近观看列表（"我的-观看记录"）。 */
-    public List<ProgressRespVO> recent(Long userId, int limit) {
-        int safeLimit = limit <= 0 || limit > MAX_PAGE_SIZE ? DEFAULT_PAGE_SIZE : limit;
-        return recentPage(userId, 1, safeLimit).getList();
-    }
-
-    /** 分页查询最近观看，按更新时间与 dramaId 稳定倒序。 */
+    /** 分页查询最近观看，按更新时间倒序并以 id 兜底保证稳定。 */
     public PageResult<ProgressRespVO> recentPage(Long userId, int pageIndex, int pageSize) {
         int safeIndex = Math.max(pageIndex, 1);
         int safeSize = Math.min(Math.max(pageSize, 1), MAX_PAGE_SIZE);
@@ -131,7 +124,7 @@ public class WatchProgressService {
                 Wrappers.<WatchProgress>lambdaQuery()
                         .eq(WatchProgress::getUserId, userId)
                         .orderByDesc(WatchProgress::getUpdatedAt)
-                        .orderByDesc(WatchProgress::getDramaId));
+                        .orderByDesc(WatchProgress::getId));
         return new PageResult<>(result.getTotal(), enrichDisplay(result.getRecords()));
     }