Incremental database updates now detect when artists or albums have been removed from your media server (Plex, Jellyfin, or Navidrome) and automatically clean them up from SoulSync's database. Previously, deleted content would persist as ghost entries until you ran a full refresh. Removal counts are reported in the scan results. Includes safety checks to prevent accidental mass deletion if the server is unreachable or returns incomplete data.
Add duplicate-artist detection/merge and handle ratingKey (ID) migrations for artists and albums. Introduces MusicDatabase.merge_duplicate_artists that picks a canonical artist (most enrichment data), merges enrichment fields, migrates albums/tracks, and removes duplicates; DatabaseUpdateWorker now runs this merge during updates (even when no new content) and after orphan cleanup. insert_or_update_artist/album now detect same-name/title + server_source collisions (ratingKey changes), inserting a new record while preserving enrichment and migrating references, with safe deletion of old rows. Also deduplicate artist listing queries so results show a single canonical row per name+server_source while aggregating album/track counts across duplicates. Logging improved to report merge/migration outcomes.
Summary: Navidrome incremental updates always found 0 new tracks because _get_recent_albums_navidrome() fetched all artists, sampled only the first 200, collected their albums, and sorted by created date — missing artists beyond the first 200 entirely. Replaced this with a single getAlbumList2?type=newest Subsonic API call that directly returns albums sorted by library addition date, matching how Jellyfin and Plex already use their native "recently added" endpoints.
Introduces Docker deployment files (.dockerignore, Dockerfile, docker-compose.yml, docker-setup.sh, requirements-webui.txt, and README-Docker.md) for SoulSync WebUI. Refactors core/database_update_worker.py and core/media_scan_manager.py to support headless operation without PyQt6, enabling signal/callback compatibility for both GUI and non-GUI environments. Removes logs/app.log file.
This is needed if users manually correct failed matches on plex when songs are scanned in. If a db sync is done after the scan but before the manual modification,
