first commit

vitest.config.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  test: {
+    environment: 'happy-dom',
+    include: ['packages/**/*.test.ts'],
+    coverage: { reporter: ['text', 'html'] },
+  },
+})