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

frontend/public/avatars/preset_2.svg

@@ -0,0 +1,11 @@
+<svg width="200" height="200" viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
+  <!-- Background circle -->
+  <circle cx="100" cy="100" r="100" fill="#EC4899"/>
+  
+  <!-- Headphones -->
+  <g fill="white" stroke="white" stroke-width="4">
+    <path d="M 60 100 Q 60 50 100 50 Q 140 50 140 100" fill="none"/>
+    <rect x="50" y="95" width="20" height="35" rx="5"/>
+    <rect x="130" y="95" width="20" height="35" rx="5"/>
+  </g>
+</svg>