fix(build): modernize project tooling and tighten TypeScript typings

test/test.both.ts

@@ -1,4 +1,4 @@
-import { expect, expectAsync, tap } from '@push.rocks/tapbundle';
+import { expect, tap } from '@git.zone/tstest/tapbundle';
 import * as smartbuffer from '../ts/index.js';
 
 tap.test('first test', async () => {
@@ -18,4 +18,4 @@ tap.test('should recognize different buffer like objects', async () => {
   expect(smartbuffer.isBufferLike(testUint8Array)).toBeTrue();
 });
 
-tap.start();
+export default tap.start();