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/download/models.py

@@ -0,0 +1,40 @@
+"""Download queue models"""
+
+from django.db import models
+from django.contrib.auth import get_user_model
+
+User = get_user_model()
+
+
+class DownloadQueue(models.Model):
+    """Download queue model"""
+    STATUS_CHOICES = [
+        ('pending', 'Pending'),
+        ('downloading', 'Downloading'),
+        ('completed', 'Completed'),
+        ('failed', 'Failed'),
+        ('ignored', 'Ignored'),
+    ]
+
+    owner = models.ForeignKey(
+        User,
+        on_delete=models.CASCADE,
+        related_name='download_queue',
+        help_text="User who owns this download"
+    )
+    url = models.URLField(max_length=500)
+    youtube_id = models.CharField(max_length=50, blank=True)
+    title = models.CharField(max_length=500, blank=True)
+    channel_name = models.CharField(max_length=200, blank=True)
+    status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='pending')
+    error_message = models.TextField(blank=True)
+    added_date = models.DateTimeField(auto_now_add=True)
+    started_date = models.DateTimeField(null=True, blank=True)
+    completed_date = models.DateTimeField(null=True, blank=True)
+    auto_start = models.BooleanField(default=False)
+
+    class Meta:
+        ordering = ['-auto_start', 'added_date']
+
+    def __str__(self):
+        return f"{self.title or self.url} - {self.status}"