{
  "receipt_id": "rcpt_20260513_0001",
  "message_id": "msg_20260513_0001",
  "created_at": "2026-05-13T00:00:05Z",
  "state": "handled",
  "state_detail": "surfaced_to_priority_inbox",
  "actor": "recipient_agent",
  "next_expected_event": null
}