- Implement cleanupDeletedFiles to remove orphaned database records for files no longer on disk
- Add verifyAndRegenerateThumbnail to detect and regenerate missing thumbnails for existing media
- Integrate new cleanup and verification steps into main scanLibrary async function
- Update scan stats to track files removed and thumbnails regenerated
- Enhance error handling to log but not block overall scan progress
- Maintain existing file discovery and processing workflows with new verification layers
- Provide detailed scanning process flow and statistics tracking for improved observability
- Delete legacy HLS diagnostic script to clean up old testing utilities
- Remove deprecated folder bookmarks migration shell script
- Remove deprecated ArtPlayer integration HTML test file
- Remove legacy HLS streaming test HTML interface
- Remove obsolete progress bar test script for transcoded videos
- Update documentation to reflect removal and archive testing suite as complete
- Consolidate test files under organized testing suite directories and guides
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