feat(library): 收藏卡片展示简介

lib/pages/favorites/favorites_page.dart

@@ -34,6 +34,9 @@ const double _removeIconSize = 20;
 const double _statsFontSize = 12;
 const double _metaFontSize = 11;
 const double _titleFontSize = 15;
+const double _synopsisFontSize = 12;
+const double _synopsisLineHeight = 1.15;
+const double _synopsisGap = 4;
 const int _maxTags = 2;
 const double _emptyListHeight = 360;
 const double _loadMoreThreshold = 240;
@@ -252,6 +255,7 @@ class _FavoriteCard extends StatelessWidget {
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
     final tags = _tags();
+    final synopsis = drama.synopsis.trim();
     return Container(
       key: ValueKey('favorite-card-${drama.id}'),
       decoration: BoxDecoration(
@@ -345,7 +349,25 @@ class _FavoriteCard extends StatelessWidget {
                                     ),
                                   ),
                                 ),
-                              const Spacer(),
+                              if (synopsis.isNotEmpty) ...[
+                                const SizedBox(height: _synopsisGap),
+                                Flexible(
+                                  child: Text(
+                                    synopsis,
+                                    key: ValueKey(
+                                      'favorite-synopsis-${drama.id}',
+                                    ),
+                                    maxLines: 2,
+                                    overflow: TextOverflow.ellipsis,
+                                    style: const TextStyle(
+                                      color: AppColors.muted,
+                                      fontSize: _synopsisFontSize,
+                                      height: _synopsisLineHeight,
+                                    ),
+                                  ),
+                                ),
+                              ] else
+                                const Spacer(),
                               Row(
                                 children: [
                                   const Icon(