响应格式：搜索的每个字段逐一说明

{
  "query": "how to rotate api keys without downtime",
  "created_at": "2026-10-22T10:15:04Z",
  "credits_used": 2,
  "results": [
    {
      "position": 1,
      "title": "Rotating API keys",
      "url": "https://docs.example.com/security/key-rotation",
      "host": "docs.example.com",
      "snippet": "Create a second key, deploy it everywhere, then revoke the first one.",
      "published_at": "2026-09-30",
      "content_status": "ok",
      "content": "# Rotating API keys\n\n## Zero-downtime rotation\n\n1. Create a second key.\n2. Deploy it to every service.\n3. Revoke the old key.",
      "word_count": 948
    },
    {
      "position": 2,
      "title": "Key rotation checklist",
      "url": "https://blog.example.org/key-rotation-checklist",
      "host": "blog.example.org",
      "snippet": "Keep two keys active during the switch and alert on the old one.",
      "content_status": "blocked_by_robots"
    },
    {
      "position": 3,
      "title": "Secrets management basics",
      "url": "https://security.example.net/secrets-basics",
      "host": "security.example.net",
      "snippet": "Never commit keys to a repository.",
      "content_status": "ok",
      "content": "# Secrets management basics\n\n**Never** commit keys to a repository.",
      "word_count": 1310
    },
    {
      "position": 4,
      "title": "Key management service guide",
      "url": "https://cloud.example.com/kms-guide",
      "host": "cloud.example.com",
      "snippet": "Store keys in a managed vault and rotate them on a schedule.",
      "content_status": "target_refused",
      "target_status": 403
    },
    {
      "position": 5,
      "title": "API key best practices",
      "url": "https://dev.example.com/api-key-best-practices",
      "host": "dev.example.com",
      "snippet": "Scope each key to one service and one environment.",
      "content_status": "not_requested"
    }
  ]
}