refactor(lib,playback): fold utils/cache+themes into lib; playbackScheduleFormat→playback (drains utils/format)

src/features/playback/store/audioEventHandlers.ts

@@ -8,7 +8,7 @@ import {
 import { resolveQueueTrack } from '@/features/playback/store/queueTrackView';
 import { invoke } from '@tauri-apps/api/core';
 import { getMusicNetworkRuntimeOrNull } from '@/music-network';
-import { setDeferHotCachePrefetch } from '@/utils/cache/hotCacheGate';
+import { setDeferHotCachePrefetch } from '@/lib/cache/hotCacheGate';
 import { notifyLibraryPlaybackHint } from '@/features/playback/store/libraryPlaybackHint';
 import {
   playListenSessionFinalize,

src/features/playback/store/engineLoadTrackAtPosition.ts

@@ -1,6 +1,6 @@
 import type { Track } from '@/lib/media/trackTypes';
 import { invoke } from '@tauri-apps/api/core';
-import { setDeferHotCachePrefetch } from '@/utils/cache/hotCacheGate';
+import { setDeferHotCachePrefetch } from '@/lib/cache/hotCacheGate';
 import {
   getPlaybackIndexKey,
   playbackCacheKeyForTrack,

src/features/playback/store/playTrackAction.ts

@@ -1,7 +1,7 @@
 import { playbackReportStart, playbackReportStopped } from '@/features/playback/store/playbackReportSession';
 import { invoke } from '@tauri-apps/api/core';
 import { getMusicNetworkRuntimeOrNull } from '@/music-network';
-import { setDeferHotCachePrefetch } from '@/utils/cache/hotCacheGate';
+import { setDeferHotCachePrefetch } from '@/lib/cache/hotCacheGate';
 import { orbitBulkGuard, orbitSnapshot } from '@/store/orbitRuntime';
 import { sameQueueTrackId } from '@/features/playback/utils/playback/queueIdentity';
 import {

src/features/playback/store/queueUndoAudioRestore.test.ts

@@ -38,7 +38,7 @@ const hoisted = vi.hoisted(() => {
 });
 
 vi.mock('@tauri-apps/api/core', () => ({ invoke: hoisted.invokeMock }));
-vi.mock('@/utils/cache/hotCacheGate', () => ({ setDeferHotCachePrefetch: hoisted.setDeferHotCachePrefetchMock }));
+vi.mock('@/lib/cache/hotCacheGate', () => ({ setDeferHotCachePrefetch: hoisted.setDeferHotCachePrefetchMock }));
 vi.mock('@/features/playback/utils/playback/resolvePlaybackUrl', () => ({ resolvePlaybackUrl: hoisted.resolvePlaybackUrlMock }));
 vi.mock('@/features/playback/utils/audio/resolveReplayGainDb', () => ({ resolveReplayGainDb: hoisted.resolveReplayGainDbMock }));
 vi.mock('@/store/authStore', () => ({ useAuthStore: { getState: () => hoisted.auth } }));

src/features/playback/store/resumeAction.ts

@@ -1,7 +1,7 @@
 import { getSong } from '@/lib/api/subsonicLibrary';
 import { invoke } from '@tauri-apps/api/core';
 import { estimateLivePosition, orbitSnapshot } from '@/store/orbitRuntime';
-import { setDeferHotCachePrefetch } from '@/utils/cache/hotCacheGate';
+import { setDeferHotCachePrefetch } from '@/lib/cache/hotCacheGate';
 import {
   getPlaybackCacheServerKey,
   getPlaybackIndexKey,