Move faker plugin from external to bundled

plugins/template-function-faker/tests/init.test.ts

@@ -0,0 +1,9 @@
+import { describe, expect, it } from 'vitest';
+
+describe('formatDatetime', () => {
+  it('returns formatted current date', async () => {
+    // Ensure the plugin imports properly
+    const faker = await import('../src/index');
+    expect(faker.plugin.templateFunctions?.length).toBe(226);
+  });
+});