{
  "current_domain": "复杂工作负载设计",
  "domain_index": 0,
  "domains": [
    "复杂工作负载设计",
    "高可用与容错",
    "安全设计",
    "成本优化",
    "迁移与现代化",
    "组织复杂性管理"
  ],
  "recent_topics": [
    "Multi-AZ vs Multi-Region",
    "ASG Health Check",
    "Storage Gateway",
    "Transit Gateway",
    "Transit Gateway 路由表"
  ],
  "total_learned": 5,
  "last_updated": "2026-02-17T20:00:00+08:00"
}