feat: init

packages/playground/vite.config.ts

@@ -0,0 +1,8 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react-swc';
+import mdx from '@mdx-js/rollup';
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [mdx(), react()],
+});