Add live English and German localization, queue availability and metadata resolution, responsive package controls, polished navigation and drag interactions, clearer history and account states, and a rebuilt public README. Harden Windows packaging with verified icons and version metadata, archive inspection, and expanded release tests.
Use the existing TLS-enabled downloader.24-music.de host under a dedicated reverse-proxy path so the backup API can be activated without introducing an unmanaged DNS dependency.
Add immutable client-encrypted settings snapshots with independent MDD2 capability keys so fresh installs can restore configuration without transferring backup files. Keep credentials encrypted end to end, preserve queues and history during import, and avoid exposing identifiers in request URLs or errors. Include the persistent API with quota, rate limits, crash-safe storage locking, durability checks, and end-to-end race and recovery coverage.