fix(recommend): 修正进度拖动与底栏联动

lib/pages/player/widgets/home_feed_overlay.dart

@@ -22,6 +22,7 @@ const double _progressHitHeight = 28;
 const double _pageHorizontal = 14;
 const double _railRight = 8;
 const double _railGap = 12;
+const double _bottomInfoInset = 20;
 const double _railBottomOffset = 60;
 const List<Shadow> _boostTextShadows = [
   Shadow(color: AppColors.shadow, blurRadius: 5, offset: Offset(0, 1)),
@@ -141,7 +142,7 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
             Positioned(
               left: _pageHorizontal,
               right: _railRight,
-              bottom: 12,
+              bottom: _bottomInfoInset,
               child: Row(
                 crossAxisAlignment: CrossAxisAlignment.end,
                 children: [
@@ -184,6 +185,7 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
   void _endScrub() {
     final wasVisible = _wasVisibleBeforeScrub;
     if (_scrubbing) setState(() => _scrubbing = false);
+    widget.onScrubVisibilityChanged?.call(false);
     widget.onScrubEnd?.call(wasVisible);
   }