feat: Add database migrations and auth system

- Add Alembic for database migrations
- Implement user authentication system
- Update frontend styles and components
- Add new test audio functionality
- Update stream management and UI

static/generate-test-audio.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Create a 1-second silent audio file in Opus format
+ffmpeg -f lavfi -i anullsrc=r=48000:cl=mono -t 1 -c:a libopus -b:a 60k /home/oib/games/dicta2stream/static/test-audio.opus
+
+# Verify the file was created
+if [ -f "/home/oib/games/dicta2stream/static/test-audio.opus" ]; then
+    echo "Test audio file created successfully at /home/oib/games/dicta2stream/static/test-audio.opus"
+    echo "File size: $(du -h /home/oib/games/dicta2stream/static/test-audio.opus | cut -f1)"
+else
+    echo "Failed to create test audio file"
+    exit 1
+fi