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/config/celery.py

@@ -0,0 +1,50 @@
+"""Celery configuration for SoundWave"""
+
+import os
+from celery import Celery
+from celery.schedules import crontab
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
+
+app = Celery('soundwave')
+app.config_from_object('django.conf:settings', namespace='CELERY')
+app.autodiscover_tasks()
+
+# Periodic task schedule
+app.conf.beat_schedule = {
+    # SMART SYNC: Check for new content in subscriptions every 15 minutes
+    'sync-subscriptions': {
+        'task': 'update_subscriptions',
+        'schedule': crontab(minute='*/15'),  # Every 15 minutes for faster sync
+    },
+    # Auto-fetch lyrics every hour
+    'auto-fetch-lyrics': {
+        'task': 'audio.auto_fetch_lyrics',
+        'schedule': crontab(minute=0),  # Every hour
+        'kwargs': {'limit': 50, 'max_attempts': 3},
+    },
+    # Clean up lyrics cache weekly
+    'cleanup-lyrics-cache': {
+        'task': 'audio.cleanup_lyrics_cache',
+        'schedule': crontab(hour=3, minute=0, day_of_week=0),  # Sunday at 3 AM
+        'kwargs': {'days_old': 30},
+    },
+    # Retry failed lyrics weekly
+    'refetch-failed-lyrics': {
+        'task': 'audio.refetch_failed_lyrics',
+        'schedule': crontab(hour=4, minute=0, day_of_week=0),  # Sunday at 4 AM
+        'kwargs': {'days_old': 7, 'limit': 20},
+    },
+    # Auto-fetch artwork every 2 hours
+    'auto-fetch-artwork': {
+        'task': 'audio.auto_fetch_artwork_batch',
+        'schedule': crontab(minute=0, hour='*/2'),  # Every 2 hours
+        'kwargs': {'limit': 50},
+    },
+    # Auto-fetch artist info daily
+    'auto-fetch-artist-info': {
+        'task': 'audio.auto_fetch_artist_info_batch',
+        'schedule': crontab(hour=2, minute=0),  # Daily at 2 AM
+        'kwargs': {'limit': 20},
+    },
+}