feat(watch mode): Add watch mode support with CLI options and enhanced documentation

test/watch-demo/test.demo.ts

@@ -0,0 +1,17 @@
+import { tap, expect } from '../../ts_tapbundle/index.js';
+
+// This test file demonstrates watch mode
+// Try modifying this file while running: tstest test/watch-demo --watch
+
+let counter = 1;
+
+tap.test('demo test that changes', async () => {
+  expect(counter).toEqual(1);
+  console.log(`Test run at: ${new Date().toISOString()}`);
+});
+
+tap.test('another test', async () => {
+  expect('hello').toEqual('hello');
+});
+
+tap.start();