<!doctype html><html><head><meta charset="utf-8"><title>QuantiGrid Testing</title><meta name="viewport" content="width=device-width,initial-scale=1"><style>body{font-family:system-ui;background:#1b1224;color:#f4e8ff;display:flex;min-height:100vh;align-items:center;justify-content:center;margin:0}.card{max-width:720px;padding:28px;border:1px solid #503567;border-radius:14px;background:#2a1838}a{color:#d8b4ff}code{background:#1b1224;padding:2px 6px;border-radius:6px}</style></head><body><div class="card"><h1>QuantiGrid Testing 🧪</h1><p>Testing gateway is live.</p><ul><li>API health: <a href="/health">/health</a></li><li>Container API base: <code>/api/v1/containers</code> (Bearer auth required)</li></ul></div></body></html>