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.
First slice of the authStore split. Pure code-move: no behaviour change.
- `authStoreTypes.ts` — `ServerProfile`, `AuthState`, plus all union
types (`SeekbarStyle`, `LoggingMode`, `NormalizationEngine`,
`DiscordCoverSource`, `LoudnessLufsPreset`, `LyricsSourceId`,
`LyricsSourceConfig`, `TrackPreviewLocation`, `TrackPreviewLocations`).
- `authStoreDefaults.ts` — `LOUDNESS_LUFS_PRESETS`,
`DEFAULT_LOUDNESS_PRE_ANALYSIS_ATTENUATION_DB`,
`TRACK_PREVIEW_LOCATIONS`, `DEFAULT_TRACK_PREVIEW_LOCATIONS`,
`DEFAULT_LYRICS_SOURCES`, `MIX_MIN_RATING_FILTER_MAX_STARS`,
`RANDOM_MIX_SIZE_OPTIONS`.
- `authStoreHelpers.ts` — `generateId`,
`sanitizeLoudnessLufsPreset`, `sanitizeLoudnessPreAnalysisFromStorage`,
`clampMixFilterMinStars`, `clampRandomMixSize`,
`clampSkipStarThreshold`, `skipStarCountStorageKey`,
`sanitizeSkipStarCounts`.
12 external call sites migrated to direct imports from the new
modules (no re-export shims left in authStore.ts — applies the
[feedback_prevent_god_modules] rule 5: avoid re-export debt).
authStore.ts: 889 → 518 LOC (−371).