决策回顾日志

改了配置 / 排期 / 礼包 / 段位规则? 立刻加一条到 web/data/decisions_log.json:

{
  "id": "D003",
  "date": "2026-05-05",
  "who": "owner",
  "area": "rank_config",
  "change": "rank_id=302 投雨伞护盾改零和 (-87 → 0)",
  "expected_effect": "段位漂移正常化, 不再异常通缩",
  "target_metric": "monthly_score_inflation",
  "expected_value": 0,
  "actual_value": null,    // 1-2 周后回填
  "actual_effect": null,
  "status": "pending"
}
    

1-2 周后 回填 actual_value + actual_effect + status (✓ 正确 / ✗ 错误 / ⚠ 部分). 系统化复盘 → 避免"改了忘掉".