{
  "id": "m0011",
  "title": "llm_usage.accounting_status 三态语义(created/accounted/failed,2026-09-05用户定夺)——默认值改created,存量na/pending归一created;failed调用与recharge行由出账循环status='ok'门槛天然排除",
  "backup_tables": ["llm_usage"],
  "up": [
    {
      "op": "sql",
      "sql": "ALTER TABLE llm_usage MODIFY COLUMN accounting_status VARCHAR(20) NOT NULL DEFAULT 'created' COMMENT '记账状态(三态:created已创建待记账/accounted记账成功/failed记账失败)'"
    },
    {
      "op": "sql",
      "sql": "UPDATE llm_usage SET accounting_status='created' WHERE accounting_status IN ('na','pending')"
    }
  ],
  "down": [
    {
      "op": "sql",
      "sql": "ALTER TABLE llm_usage MODIFY COLUMN accounting_status VARCHAR(20) NOT NULL DEFAULT 'na' COMMENT '出账状态(本机构模型仅成本=na/owner模型待三方账=pending/已出账=accounted)'"
    },
    {
      "op": "sql",
      "sql": "UPDATE llm_usage SET accounting_status='na' WHERE accounting_status='created'"
    }
  ]
}