Keep format choices available independently of loaded pages, match codec and extension aliases, and add a filter for indexed ReplayGain tags. Preserve source, quality, search, paging, and existing missing-ReplayGain behavior.
Validation: 13 targeted database and widget tests; Flutter localization generation and targeted analysis.
Disable automatic deletion across clients sharing Android secure storage and enable protected migration. Reject replacement keys when encrypted settings exist or the saved key is malformed. Surface preparation failures through extension state and preserve retry behavior.
Validation: targeted Flutter tests, analyzer and Android secure-storage compatibility test passed. The original device key-loss trigger is not established.
Export, import, and split legacy history backups in Rust while preserving schema 15, all history columns, path keys, and atomic restore behavior. Keep provider refresh and pending history edits intact.
Move full and incremental ingestion, source snapshots, path keys, and download exclusion to native transactions. Preserve schema 17, FTS, WAL coordination, cancellation, and Android SAF timestamp backfill.
Move playlist parsing and serialization off the UI isolate, preserving field mapping, identifiers, durations, and export entries. Extend the shared parser contract tests with playlist fixtures.
Port LRC, enhanced LRC, and TTML parsing plus ID3v2.3 lyrics writing and picture encoding. Keep legacy contracts and deep XML fallback; guard asynchronous player updates against stale track results.
Move PCM beat analysis and spectrum cutoff estimation to cancellable Rust workers with the existing algorithms and isolated Dart fallbacks. Keep visual rendering and playback behavior unchanged.
Introduce Android, iOS, and Dart worker dispatch with queued cancellation, binary inputs, and background JSON codecs. Move APK verification to streamed native SHA256 while retaining the isolated fallback.
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