Drop ACE and YuEGP defaults from studio music queue and library labels.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/utils/generationPresets.ts

@@ -166,17 +166,12 @@ function sanitizeImageV2Settings(raw: unknown): ImageV2PresetSettings {
 
 function sanitizeMusicSettings(raw: unknown): MusicPresetSettings {
   const rec = raw && typeof raw === 'object' ? raw as Record<string, unknown> : {}
-  const instrumental = rec.instrumental === true
   return {
     tags: sanitizeMusicTags(rec.tags),
-    lyrics: sanitizeMusicLyrics(rec.lyrics, instrumental),
-    instrumental,
+    lyrics: sanitizeMusicLyrics(rec.lyrics, false),
     duration: clampMusicDuration(rec.duration),
-    steps: clampMusicSteps(rec.steps),
     seed: typeof rec.seed === 'number' && Number.isFinite(rec.seed) ? Math.max(0, Math.floor(rec.seed)) : undefined,
-    cfg: rec.cfg == null ? undefined : clampMusicCfg(rec.cfg),
-    engine: parseMusicEngine(rec.engine),
-    ...(parseMusicEngine(rec.engine) === 'yue' ? { yueProfile: rec.yueProfile === 3 ? 3 as const : 1 as const } : {})
+    engine: 'yue2'
   }
 }