test(e2e): add basic integration test

tests/e2e.test.ts

@@ -0,0 +1,23 @@
+import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { mkdtempSync, rmSync, existsSync } from 'fs';
+import { tmpdir } from 'os';
+import { join } from 'path';
+import { execSync } from 'child_process';
+
+describe('e2e', () => {
+  let cwd: string;
+
+  beforeEach(() => {
+    cwd = mkdtempSync(join(tmpdir(), 'agenthub-e2e-'));
+  });
+
+  afterEach(() => {
+    rmSync(cwd, { recursive: true, force: true });
+  });
+
+  it('initializes and creates a task', () => {
+    const bin = join(process.cwd(), 'bin', 'agenthub.js');
+    execSync(`node ${bin} init --yes --project-name e2e-test`, { cwd });
+    expect(existsSync(join(cwd, '.agenthub', 'agenthub.config.json'))).toBe(true);
+  });
+});