P0: Rust engine, wire daemon and audio-reactive descent surface

ui/vite.config.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from 'vite';
+import { svelte } from '@sveltejs/vite-plugin-svelte';
+
+export default defineConfig({
+  plugins: [svelte()],
+  server: { port: 5173, strictPort: true, host: '127.0.0.1' },
+  preview: { port: 5173, strictPort: true, host: '127.0.0.1' },
+  build: { target: 'es2022' }
+});