{
  "synthetic": true,
  "period": "2026-09",
  "invoices": [
    {
      "id": "IN01",
      "invoice_no": "C100",
      "vendor": "示例云服务",
      "date": "2026-09-10",
      "amount": "120.00",
      "currency": "CNY",
      "status": "paid",
      "source": "mail-A/attachment-1",
      "text": "发票 C100，示例云服务，2026-09-10，CNY 120.00，已付款。"
    },
    {
      "id": "IN02",
      "invoice_no": "C100",
      "vendor": "示例云服务",
      "date": "2026-09-10",
      "amount": "120.00",
      "currency": "CNY",
      "status": "paid",
      "source": "mail-B/attachment-2",
      "text": "再次转来的发票 C100，示例云服务，CNY 120.00，已付款。"
    },
    {
      "id": "IN03",
      "invoice_no": "U200",
      "vendor": "Example Design",
      "date": "2026-09-12",
      "amount": "20.00",
      "currency": "USD",
      "status": "paid",
      "source": "mail-C/attachment-3",
      "text": "Receipt U200, Example Design, 2026-09-12, USD 20.00, Paid."
    },
    {
      "id": "IN04",
      "invoice_no": "C180",
      "vendor": "示例工具箱",
      "date": "2026-09-15",
      "amount": "80.00",
      "currency": "CNY",
      "status": "unpaid",
      "source": "mail-D/attachment-4",
      "text": "账单 C180，CNY 80.00，待付款。"
    },
    {
      "id": "IN05",
      "invoice_no": "C190",
      "vendor": "示例存储",
      "date": "2026-09-20",
      "amount": null,
      "currency": "CNY",
      "status": "paid",
      "source": "mail-E/attachment-5",
      "text": "收据 C190，日期 2026-09-20，已付款，币种 CNY，但金额文字模糊无法读清。"
    },
    {
      "id": "IN06",
      "invoice_no": "C150",
      "vendor": "示例文档",
      "date": "2026-09-22",
      "amount": "50.00",
      "currency": "CNY",
      "status": "void",
      "source": "mail-F/attachment-6",
      "text": "发票 C150，CNY 50.00，已作废，不计入有效收据。"
    },
    {
      "id": "IN07",
      "invoice_no": "C199",
      "vendor": "示例日历",
      "date": "2026-10-02",
      "amount": "99.00",
      "currency": "CNY",
      "status": "paid",
      "source": "mail-G/attachment-7",
      "text": "收据 C199，开具日期 2026-10-02，CNY 99.00，已付款。"
    },
    {
      "id": "IN08",
      "invoice_no": "C130",
      "vendor": "示例通讯",
      "date": "2026-09-28",
      "amount": "30.00",
      "currency": "CNY",
      "status": "paid",
      "source": "mail-H/attachment-8",
      "text": "收据 C130，示例通讯，2026-09-28，CNY 30.00，已付款。"
    }
  ]
}