feat(skin): add error handling for audio players (#1048)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

packages/core/src/dom/media/types.ts

@@ -66,6 +66,7 @@ export type AudioFeatures = [
   PlayerFeature<MediaTimeState>,
   PlayerFeature<MediaSourceState>,
   PlayerFeature<MediaBufferState>,
+  PlayerFeature<MediaErrorState>,
 ];
 
 // TODO: Define background video features (e.g., playback, source, buffer)

packages/core/src/dom/store/features/presets.ts

@@ -32,6 +32,7 @@ export const audioFeatures: AudioFeatures = [
   timeFeature,
   sourceFeature,
   bufferFeature,
+  errorFeature,
 ];
 
 // TODO: Add background video features (e.g., playback, source, buffer)