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.
Extract the GitHub release probe, download/relaunch state and the markdown
changelog renderer out of AppUpdater.tsx:
- utils/appUpdaterHelpers.ts isNewer, fmtBytes, pickAsset, types
- hooks/useAppUpdater.ts release probe + download/relaunch handlers
- components/appUpdater/Changelog.tsx
Pure code-move, no behaviour change. The AppShell call site is unchanged.