Initial commit - SoundWave v1.0

- Full PWA support with offline capabilities
- Comprehensive search across songs, playlists, and channels
- Offline playlist manager with download tracking
- Pre-built frontend for zero-build deployment
- Docker-based deployment with docker compose
- Material-UI dark theme interface
- YouTube audio download and management
- Multi-user authentication support

backend/appsettings/serializers.py

@@ -0,0 +1,12 @@
+"""App settings serializers"""
+
+from rest_framework import serializers
+
+
+class AppConfigSerializer(serializers.Serializer):
+    """Application configuration"""
+    app_name = serializers.CharField(default='SoundWave')
+    version = serializers.CharField(default='1.0.0')
+    sw_host = serializers.URLField()
+    audio_quality = serializers.CharField(default='best')
+    auto_update_ytdlp = serializers.BooleanField(default=False)