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_5.svg

@@ -0,0 +1,15 @@
+<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="#8B5CF6"/>
+  
+  <!-- Waveform -->
+  <g fill="white">
+    <rect x="50" y="90" width="8" height="20" rx="4"/>
+    <rect x="65" y="70" width="8" height="60" rx="4"/>
+    <rect x="80" y="50" width="8" height="100" rx="4"/>
+    <rect x="95" y="80" width="8" height="40" rx="4"/>
+    <rect x="110" y="60" width="8" height="80" rx="4"/>
+    <rect x="125" y="75" width="8" height="50" rx="4"/>
+    <rect x="140" y="85" width="8" height="30" rx="4"/>
+  </g>
+</svg>