fix(player): 收敛播放入口缓冲提示

lib/pages/player/widgets/home_feed_overlay_parts.dart

@@ -79,18 +79,16 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
         final width = constraints.maxWidth;
         final source = widget.controller;
         final scrubbing = _preview != null;
-        final loading =
-            !widget.locked &&
-            (source == null ||
-                (!scrubbing && (!source.value.isInitialized || _buffering)));
+        final loading = !widget.locked && !scrubbing && _buffering;
         final track = widget.locked
             ? _inactiveTrack()
             : source == null
-            ? _loadingTrack()
+            ? _inactiveTrack()
             : ValueListenableBuilder<VideoPlayerValue>(
                 valueListenable: source,
                 builder: (context, value, _) {
-                  if (!scrubbing && (!value.isInitialized || _buffering)) {
+                  if (!value.isInitialized) return _inactiveTrack();
+                  if (!scrubbing && _buffering) {
                     return _loadingTrack();
                   }
                   final total = value.duration.inMilliseconds;
@@ -102,7 +100,10 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
                   return _track(_preview ?? played, width);
                 },
               );
-        final interactive = !widget.locked && !loading;
+        final interactive =
+            !widget.locked &&
+            !loading &&
+            (source?.value.isInitialized ?? false);
         return GestureDetector(
           key: const Key('home-feed-progress'),
           behavior: HitTestBehavior.opaque,
@@ -148,7 +149,7 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
     if (!value.isInitialized) {
       _bufferTimer?.cancel();
       _bufferTimer = null;
-      _setBuffering(true, notify: notify);
+      _setBuffering(false, notify: notify);
       return;
     }
     if (!value.isBuffering) {

lib/pages/player/widgets/seek_progress_bar.dart

@@ -114,7 +114,7 @@ class _SeekProgressBarState extends State<SeekProgressBar> {
     if (!value.isInitialized) {
       _bufferTimer?.cancel();
       _bufferTimer = null;
-      _setBuffering(true, notify: notify);
+      _setBuffering(false, notify: notify);
       return;
     }
     if (!value.isBuffering) {
@@ -181,8 +181,7 @@ class _SeekProgressBarState extends State<SeekProgressBar> {
   Widget _buildTrack(BuildContext context, VideoPlayerValue video) {
     final total = video.duration.inMilliseconds;
     final scrubbing = _previewFraction.value != null;
-    final loading =
-        !widget.locked && !scrubbing && (!video.isInitialized || _buffering);
+    final loading = !widget.locked && !scrubbing && _buffering;
     final enabled =
         !widget.locked &&
         video.isInitialized &&
@@ -223,7 +222,7 @@ class _SeekProgressBarState extends State<SeekProgressBar> {
           ),
         SizedBox(
           height: trackAreaHeight,
-          child: widget.locked
+          child: widget.locked || !video.isInitialized
               ? _inactiveTrack(trackHeight)
               : loading
               ? Center(