Fix: Include backend/audio Django app in repository

backend/audio/urls_artwork.py

@@ -0,0 +1,21 @@
+"""URL configuration for artwork and metadata"""
+from django.urls import path, include
+from rest_framework.routers import DefaultRouter
+from audio.views_artwork import (
+    ArtworkViewSet,
+    MusicMetadataViewSet,
+    ArtistInfoViewSet,
+    AudioArtworkViewSet,
+    ChannelArtworkViewSet,
+)
+
+router = DefaultRouter()
+router.register(r'artwork', ArtworkViewSet, basename='artwork')
+router.register(r'metadata', MusicMetadataViewSet, basename='metadata')
+router.register(r'artist-info', ArtistInfoViewSet, basename='artist-info')
+router.register(r'audio-artwork', AudioArtworkViewSet, basename='audio-artwork')
+router.register(r'channel-artwork', ChannelArtworkViewSet, basename='channel-artwork')
+
+urlpatterns = [
+    path('', include(router.urls)),
+]