Add one-line score visualizer with 3D orb and MP4 export

- Verovio single-system engraving, MuseScore audio/MIDI from the same source
- React + Remotion player with live camera, colour and orb controls
- Express pipeline, render queue and local H.264/AAC export
- MIT license plus third-party notices for the reference skill

vite.config.ts

@@ -0,0 +1,19 @@
+import {defineConfig} from 'vite';
+import react from '@vitejs/plugin-react';
+
+export default defineConfig({
+  plugins: [react()],
+  publicDir: 'public',
+  build: {
+    outDir: 'dist/client',
+    emptyOutDir: true,
+  },
+  server: {
+    port: 5173,
+    proxy: {
+      '/api': 'http://127.0.0.1:3001',
+      '/jobs': 'http://127.0.0.1:3001',
+      '/demo': 'http://127.0.0.1:3001',
+    },
+  },
+});