Match decoded path components once in Dart and Rust while rejecting encoded separators and paths outside the selected folder. Add folder scan diagnostics, shared parser fixtures, a synthetic 1806-track traversal and native Android regression coverage.
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.
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.