chore: add scaffold smoke test

tests/scaffold.test.js

@@ -0,0 +1,14 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import { readFileSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+import { dirname, join } from "node:path";
+
+const root = join(dirname(fileURLToPath(import.meta.url)), "..");
+
+test("the site has a home page with a semantic navigation bar", () => {
+  const html = readFileSync(join(root, "index.html"), "utf8");
+  assert.match(html, /<nav/);
+  assert.match(html, /class="nav-links"/);
+  assert.match(html, /<a href="index\.html">Home<\/a>/);
+});