citizen: implement Implement: Core logic

src/core.mjs

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