fix: 修正双击点赞与心形联动

lib/pages/player/widgets/interaction_rail.dart

@@ -19,6 +19,7 @@ class InteractionRailItem {
     this.count,
     this.countKey,
     this.selected = false,
+    this.selectedColor = AppColors.blue,
   });
 
   final Key key;
@@ -28,6 +29,7 @@ class InteractionRailItem {
   final int? count;
   final Key? countKey;
   final bool selected;
+  final Color selectedColor;
 }
 
 /// 播放页与首页 feed 共用的右侧互动栏：收藏/评论/喜欢/分享。
@@ -71,7 +73,7 @@ class _RailButton extends StatelessWidget {
               width: _iconSize,
               height: _iconSize,
               fit: BoxFit.contain,
-              color: item.selected ? AppColors.blue : AppColors.onPrimary,
+              color: item.selected ? item.selectedColor : AppColors.onPrimary,
               colorBlendMode: BlendMode.srcIn,
             ),
           ),