111 of 122 top-level src/utils/ files move into 16 topic folders (audio,
cache, cover, share, server, playback, playlist, deviceSync, waveform,
mix, format, export, changelog, ui, perf, componentHelpers). True
singletons with no cluster stay at the utils/ root.
Pure file-move: a path-aware codemod rewrote 539 relative-import
specifiers across 275 files; no logic touched. The hot-path coverage
gate list (.github/frontend-hot-path-files.txt) is updated to the new
paths for the 11 gated utils files — a mechanical consequence of the
move, not a CI change. tsc is green.
Lucky Mix targets ~50 tracks in one run: pick seeds from your most-played artists/albums and 4+ rated songs, add similar tracks, then fill the mix with random library picks, skipping anything you rated 1–2.
On start it trims the old “upcoming” tail so the queue does not show stale next tracks, starts playback on the first viable seed, routes to Now Playing, and can emit structured steps to the backend debug log.
Frank Stellmacher
Maxim Isaev