{
  "topic_id": "TP-042",
  "synthetic": true,
  "real_customer_data": false,
  "purpose": "Undo last upload is reverse upload order",
  "input": {
    "account": "A",
    "upload_order": [
      "U1-September",
      "U2-October"
    ],
    "desired_target": "U1-September",
    "attachments": {
      "U1-September": [
        "receipt-A.pdf"
      ]
    }
  },
  "expected_review": {
    "first_undo_target": "U2-October",
    "target_attachment_preserve": [
      "receipt-A.pdf"
    ],
    "deletion_authorized": false
  },
  "scope": "Sequence reference only. User must preserve every affected file and review full removal scope; no actual undo performed.",
  "verification": "Python reference model only. Vendor UI, accounting operations, real bank compatibility and authenticated imports NOT_VERIFIED."
}