{"service":"Cadence License Server","status":"ok","version":"1.0","endpoints":{"health":"GET /health","register":"POST /api/license/register","validate":"POST /api/license/validate","admin_grant":"POST /api/admin/grant","admin_revoke":"POST /api/admin/revoke"},"note":"Server chỉ quản lý license key (hash). KHÔNG lưu API key Binance."}