[
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    "tx_id": "tx_001",
    "company_id": "co_a",
    "merchant_raw": "스타벅스 강남점",
    "merchant_id": "m_sbux",
    "amount_krw": 18000,
    "category": "meal",
    "ts": "2026-05-02T09:12:00"
  },
  {
    "tx_id": "tx_002",
    "company_id": "co_a",
    "merchant_raw": "AWS",
    "merchant_id": "m_aws",
    "amount_krw": 1320000,
    "category": "software",
    "ts": "2026-05-02T03:00:00"
  },
  {
    "tx_id": "tx_003",
    "company_id": "co_a",
    "merchant_raw": "스타벅스강남",
    "merchant_id": "m_sbux",
    "amount_krw": 18000,
    "category": "meal",
    "ts": "2026-05-02T09:12:05"
  },
  {
    "tx_id": "tx_004",
    "company_id": "co_b",
    "merchant_raw": "카카오모빌리티",
    "merchant_id": "m_kakaot",
    "amount_krw": 9800,
    "category": "transport",
    "ts": "2026-05-03T22:40:00"
  },
  {
    "tx_id": "tx_005",
    "company_id": "co_b",
    "merchant_raw": "알 수 없는 가맹점 #44",
    "merchant_id": null,
    "amount_krw": 540000,
    "category": null,
    "ts": "2026-05-03T02:13:00"
  },
  {
    "tx_id": "tx_006",
    "company_id": "co_b",
    "merchant_raw": "네이버클라우드",
    "merchant_id": "m_ncloud",
    "amount_krw": 220000,
    "category": "software",
    "ts": null
  },
  {
    "tx_id": "tx_007",
    "company_id": "co_c",
    "merchant_raw": "배달의민족",
    "merchant_id": "m_baemin",
    "amount_krw": 32000,
    "category": "meal",
    "ts": "2026-05-04T12:30:00"
  },
  {
    "tx_id": "tx_008",
    "company_id": "co_c",
    "merchant_raw": "페이스북 광고",
    "merchant_id": "m_meta",
    "amount_krw": 5000000,
    "category": "ad",
    "ts": "2026-05-04T15:00:00"
  },
  {
    "tx_id": "tx_009",
    "company_id": "co_c",
    "merchant_raw": "오피스디포",
    "merchant_id": "m_office",
    "amount_krw": 0,
    "category": "office",
    "ts": "2026-05-05T10:00:00"
  },
  {
    "tx_id": "tx_010",
    "company_id": "co_a",
    "merchant_raw": "",
    "merchant_id": null,
    "amount_krw": 76000,
    "category": null,
    "ts": "2026-05-05T18:20:00"
  },
  {
    "tx_id": "tx_011",
    "company_id": "co_a",
    "merchant_raw": "GS25 야간",
    "merchant_id": "m_gs25",
    "amount_krw": 990000,
    "category": "meal",
    "ts": "2026-05-06T03:55:00"
  },
  {
    "tx_id": "tx_012",
    "company_id": "co_orphan",
    "merchant_raw": "테스트가맹점",
    "merchant_id": "m_test",
    "amount_krw": 1000,
    "category": "office",
    "ts": "2026-05-06T11:00:00"
  }
]