Initial commit: DJ Visualizer

Electron app with audio-reactive fractal/abstract visuals on an external
display. Dual-window setup (control panel + fullscreen output), 8 WebGL
scenes, audio from file/live input/system audio, image and scrolling-text
overlays.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,17 @@
+# Dependencies
+node_modules/
+
+# Build output
+dist/
+out/
+
+# Logs
+*.log
+npm-debug.log*
+
+# macOS
+.DS_Store
+
+# Editor
+.vscode/
+.idea/