{
  "proposal_digest": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
  "policy_pack": {
    "id": "hubei-spot-bidding",
    "version": "2026.03"
  },
  "ok": false,
  "violations": [
    {
      "rule_id": "price-limits",
      "severity": "REJECT",
      "message": "price 1500.00 above cap"
    }
  ],
  "rules_evaluated": [
    "bid-format",
    "price-limits"
  ],
  "checked_at": "2026-03-14T08:30:00Z"
}