adding home page

test/markdown.test.js

@@ -0,0 +1,13 @@
+import { describe, expect, it } from 'vitest';
+import request from 'supertest';
+import { createProxyApp } from '../src/proxy.js';
+
+describe('pages', () => {
+  it('renders the Markdown home page at /', async () => {
+    const result = await request(createProxyApp({ keys: ['key'] })).get('/').expect(200);
+
+    expect(result.headers['content-type']).toMatch(/text\/html/);
+    expect(result.text).toContain('<h1>OpenCode Go Proxy</h1>');
+    expect(result.text).toContain('OpenAI-compatible API');
+  });
+});