Scaffold: package contract, docker CI gate, Renovate

src/index.test.ts

@@ -0,0 +1,7 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+test('the test harness runs TypeScript', () => {
+  const answer: number = 42
+  assert.equal(answer, 42)
+})