[
  {
    "email_id": "E01",
    "message_id": "msg-a",
    "invoice_id": "INV-100",
    "supplier": "松风材料社",
    "buyer": "青禾工作室",
    "issue_date": "2026-10-20",
    "currency": "CNY",
    "subtotal": 100.0,
    "tax": 0.0,
    "total": 100.0,
    "attachment_hash": "demo-a",
    "review_reasons": []
  },
  {
    "email_id": "E03",
    "message_id": "msg-b",
    "invoice_id": "INV-101",
    "supplier": "松风材料社",
    "buyer": "青禾工作室",
    "issue_date": "2026-10-21",
    "currency": "CNY",
    "subtotal": 80.0,
    "tax": null,
    "total": 80.0,
    "attachment_hash": "demo-b",
    "review_reasons": []
  },
  {
    "email_id": "E04",
    "message_id": "msg-c",
    "invoice_id": "INV-102",
    "supplier": "北门纸品社",
    "buyer": "青禾工作室",
    "issue_date": "2026-10-22",
    "currency": "CNY",
    "subtotal": 60.0,
    "tax": 6.0,
    "total": 68.0,
    "attachment_hash": "demo-c",
    "review_reasons": [
      "Total conflicts with sum of subtotal and tax"
    ]
  }
]