feat(player): 互动栏改用参考图同款图标资源

lib/pages/player/widgets/interaction_rail.dart

@@ -6,32 +6,28 @@ import '../../../core/formatting/count_format.dart';
 import '../../../core/theme/app_colors.dart';
 
 const double _buttonSize = 44;
-const double _iconSize = 30;
-const double _itemGap = 22;
+const double _iconSize = 32;
+const double _itemGap = 24;
 
 /// 互动栏单项：图标、计数与点击。
 class InteractionRailItem {
   const InteractionRailItem({
     required this.key,
-    required this.icon,
-    required this.activeIcon,
+    required this.asset,
     required this.label,
     required this.onTap,
     this.count,
     this.countKey,
     this.selected = false,
-    this.mirrorIcon = false,
   });
 
   final Key key;
-  final IconData icon;
-  final IconData activeIcon;
+  final String asset;
   final String label;
   final VoidCallback onTap;
   final int? count;
   final Key? countKey;
   final bool selected;
-  final bool mirrorIcon;
 }
 
 /// 播放页与首页 feed 共用的右侧互动栏：收藏/评论/喜欢/分享。
@@ -61,10 +57,6 @@ class _RailButton extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final icon = Icon(
-      item.selected ? item.activeIcon : item.icon,
-      size: _iconSize,
-    );
     return Column(
       key: item.key,
       mainAxisSize: MainAxisSize.min,
@@ -74,10 +66,14 @@ class _RailButton extends StatelessWidget {
           child: IconButton(
             onPressed: item.onTap,
             padding: EdgeInsets.zero,
-            color: item.selected ? AppColors.blue : Colors.white,
-            icon: item.mirrorIcon
-                ? Transform.flip(flipX: true, child: icon)
-                : icon,
+            icon: Image.asset(
+              item.asset,
+              width: _iconSize,
+              height: _iconSize,
+              fit: BoxFit.contain,
+              color: item.selected ? AppColors.blue : Colors.white,
+              colorBlendMode: BlendMode.srcIn,
+            ),
           ),
         ),
         const SizedBox(height: 2),