feat(app): 展示真实点赞与评论计数

lib/pages/player/widgets/drama_comments_sheet.dart

@@ -178,11 +178,13 @@ class _DramaCommentsSheetState extends State<DramaCommentsSheet> {
 
   Widget _content(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
+    final count = _controller.exactCount;
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         Text(
-          l10n.comments,
+          count == null ? l10n.comments : '${l10n.comments} · $count',
+          key: count == null ? null : const Key('comment-count-label'),
           style: const TextStyle(
             color: AppColors.cream,
             fontSize: 18,