Pre(alpha) Release v1.8.52

Bookmark Sync Fixes

• Deleting bookmarks on web UI now properly removes them in Absorb
• Server is source of truth - no more deleted bookmarks getting pushed back
• Socket events trigger immediate bookmark sync (no need to open sheet)
• Offline bookmarks tracked and pushed on reconnect

Collapsed Series Fixes

• Fixed Warhammer (260 books) and similar sized series not collapsing
• Safe sort parameter prevents server crashes on large series

Large Library Improvements

• Search and series tab timeouts bumped to 60s for large libraries
• Fixes empty results on libraries with thousands of items

Battery Improvements

• Background save timer stops on pause, restarts on play
• Stuck detection timer stops on pause, restarts on play
• No more background wake-ups when playback is paused
• Reduced debug log noise