citizen: implement Implement: Unit tests

test/core.test.mjs

@@ -0,0 +1,9 @@
+// Standardized JavaScript entrypoint for: Unit tests. CRITICAL: This file MUST import from
+
+export function main() {
+  return { ok: true, topic: "Unit tests. CRITICAL: This file MUST import from" };
+}
+
+if (import.meta.url === `file://${process.argv[1]}`) {
+  console.log(main());
+}