feat: add native require(ESM) example

packages/require-esm/README.md

@@ -0,0 +1,15 @@
+# `require(ESM)` Example
+
+A straightforward example of a CommonJS project that requires an ESM module.
+Requires Node.js `^22.12.0 || >=23.0.0`.
+
+1. `npm install`
+2. `npm run test`
+
+```plaintext
+  example
+    ✔ 2 + 2 === 4
+
+
+  1 passing (2ms)
+```

packages/require-esm/package.json

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+{
+  "name": "require-esm",
+  "version": "1.0.0",
+  "description": "Example of using Mocha with native ESM in Node.js",
+  "scripts": {
+    "test": "mocha test.spec.js"
+  },
+  "engines": {
+    "node": "^22.12.0 || >=23.0.0"
+  },
+  "license": "ISC",
+  "devDependencies": {
+    "chai": "^5.1.2",
+    "mocha": "latest"
+  },
+  "type": "commonjs"
+}

packages/require-esm/test.spec.js

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+const { expect } = require("chai");
+
+describe("example", () => {
+  it("2 + 2 === 4", () => {
+    expect(2 + 2).to.be.eq(4);
+  });
+});