improve repo structure

local/config/package.json

@@ -7,7 +7,8 @@
     "./playwright.coverage": "./src/playwright.coverage.js",
     "./jest": "./src/jest.js",
     "./jest-babel": "./src/jest.babel.js",
-    "./full-coverage": "./src/full-coverage.js"
+    "./full-coverage": "./src/full-coverage.js",
+    "./vitest": "./src/vitest.js"
   },
   "version": "0.0.0"
 }

local/config/src/vitest.js

@@ -0,0 +1,9 @@
+const { resolve } = require('path');
+const { defineConfig } = require('vitest/config');
+
+module.exports = defineConfig({
+  test: {
+    setupFiles: resolve(__dirname, 'vitest.setup.js'),
+    environment: 'jsdom',
+  },
+});

local/config/src/vitest.setup.js

@@ -0,0 +1,4 @@
+import matchers from '@testing-library/jest-dom/matchers';
+import { expect } from 'vitest';
+
+expect.extend(matchers);