List per-buyer auto-approvals

{
  "items": [
    {
      "id": "42",
      "storefrontId": "1234",
      "buyerCustomerId": 804,
      "buyerName": "Coca-Cola",
      "autoApproveEnabled": true,
      "reason": "Coke — pre-cleared 2026 always-on.",
      "createdAt": "2026-06-28T15:00:00.000Z",
      "updatedAt": "2026-06-28T15:00:00.000Z",
      "createdBy": "11",
      "createdByCustomerId": 1234,
      "updatedByCustomerId": 1234,
      "policyBypassCount": 2,
      "lastPolicyBypassAt": "2026-06-29T09:00:00.000Z"
    }
  ],
  "total": 1,
  "eligibleBuyers": [
    {
      "buyerCustomerId": 804,
      "buyerName": "Coca-Cola",
      "mediaBuyCount": 12,
      "lastMediaBuyAt": "2026-06-29T09:00:00.000Z"
    }
  ]
}