BREAKING CHANGE(core): switch to esm

test/test.ts

@@ -0,0 +1,8 @@
+import { expect, expectAsync, tap } from '@pushrocks/tapbundle';
+import * as uplapi from '../ts/index.js';
+
+tap.test('first test', async () => {
+  console.log(uplapi);
+});
+
+tap.start();