feat(player): 进度条拖动预览改用雪碧图

lib/pages/player/widgets/seek_progress_bar.dart

@@ -7,6 +7,7 @@ import 'package:flutter/material.dart';
 import 'package:video_player/video_player.dart';
 
 import '../../../core/data/services/playback_thumbnail_service.dart';
+import '../../../core/data/services/sprite_thumbnail_axis.dart';
 import '../../../core/theme/app_colors.dart';
 import 'loading_progress_track.dart';
 import 'scrub_preview_card.dart';
@@ -35,8 +36,10 @@ class SeekProgressBar extends StatefulWidget {
     this.inactiveTrackColor = AppColors.border,
     this.locked = false,
     this.thumbnailService,
+    this.spriteAxisService,
     this.episodeId,
     this.posterUrl = '',
+    this.thumbnailsUrl,
   });
 
   final ValueListenable<VideoPlayerValue>? valueListenable;
@@ -48,8 +51,10 @@ class SeekProgressBar extends StatefulWidget {
   final Color inactiveTrackColor;
   final bool locked;
   final PlaybackThumbnailService? thumbnailService;
+  final SpriteThumbnailAxisService? spriteAxisService;
   final String? episodeId;
   final String posterUrl;
+  final String? thumbnailsUrl;
 
   @override
   State<SeekProgressBar> createState() => _SeekProgressBarState();
@@ -299,6 +304,8 @@ class _SeekProgressBarState extends State<SeekProgressBar> {
                 bottom: trackAreaHeight + 8,
                 child: ScrubPreviewCard(
                   service: widget.thumbnailService!,
+                  spriteAxisService: widget.spriteAxisService,
+                  thumbnailsUrl: widget.thumbnailsUrl,
                   episodeId: widget.episodeId!,
                   posterUrl: widget.posterUrl,
                   position: previewPosition,