Implements manual track matching (discovery fix modal) for YouTube, Tidal, and Beatport platforms, allowing users to search and select Spotify tracks for unmatched results. Adds backend endpoints and frontend logic for updating matches, improves conversion of discovery results for sync/download, and updates Dockerfile/entrypoint for dynamic PUID/PGID/UMASK support. Includes a new DOCKER_PERMISSIONS.md guide.
Improves Docker integration by copying config.example.json as the default config.json and updating ownership in the Dockerfile. Adjusts config paths in config.example.json for container compatibility and updates docker-compose.yml to build the image and comment out the config volume for baked-in config testing. Also updates .dockerignore to allow config.example.json.
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.
