fix: boost control is a switch; MutationQueue keeps one enqueue per kind (M464 #4998)

The ListenBrainz settings test finds the page's one checkbox, and the
boost control is a toggle anyway. detekt counts MutationQueue's enqueue
functions; suppressed as the replayer's dispatchers already are.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

android/app/src/main/java/com/fabledsword/minstrel/cache/mutations/MutationQueue.kt

@@ -91,6 +91,7 @@ data class RequestCreatePayload(
  * This matches `feedback_offline_first_for_server_writes` — writes
  * never go fire-and-forget.
  */
+@Suppress("TooManyFunctions") // one enqueue per mutation kind, like the replayer's dispatchers
 @Singleton
 class MutationQueue @Inject constructor(
     private val dao: CachedMutationDao,

web/src/lib/components/NormalizationSetting.svelte

@@ -94,6 +94,8 @@
       </span>
       <input
         type="checkbox"
+        role="switch"
+        aria-checked={normalization.value.boost === 'limiter'}
         checked={normalization.value.boost === 'limiter'}
         onchange={(e) =>
           change({ boost: (e.currentTarget as HTMLInputElement).checked ? 'limiter' : 'headroom' })}

web/src/lib/components/NormalizationSetting.test.ts

@@ -31,7 +31,7 @@ describe('NormalizationSetting', () => {
     await waitFor(() =>
       expect(putNormalization).toHaveBeenCalledWith({ mode: 'album', target_lufs: -16, boost: 'headroom' })
     );
-    await fireEvent.click(screen.getByRole('checkbox', { name: /boost quiet tracks/i }));
+    await fireEvent.click(screen.getByRole('switch', { name: /boost quiet tracks/i }));
     await waitFor(() =>
       expect(putNormalization).toHaveBeenLastCalledWith({ mode: 'album', target_lufs: -16, boost: 'limiter' })
     );
@@ -60,6 +60,6 @@ describe('NormalizationSetting', () => {
     render(NormalizationSetting);
     await waitFor(() => expect(screen.getByRole('radio', { name: 'Off' })).toBeChecked());
     expect(screen.queryByRole('radio', { name: '-18 LUFS' })).toBeNull();
-    expect(screen.queryByRole('checkbox')).toBeNull();
+    expect(screen.queryByRole('switch')).toBeNull();
   });
 });