[
  {
    "event_id": "e_001",
    "store_id": "st_seongsu",
    "sku": "P-100",
    "ts": "2026-05-01T13:00:00",
    "type": "scan",
    "session_id": "sess_1"
  },
  {
    "event_id": "e_002",
    "store_id": "st_seongsu",
    "sku": "P-100",
    "ts": "2026-05-01T13:01:00",
    "type": "compare",
    "session_id": "sess_1"
  },
  {
    "event_id": "e_003",
    "store_id": "st_seongsu",
    "sku": "P-101",
    "ts": "2026-05-01T13:01:30",
    "type": "compare",
    "session_id": "sess_1"
  },
  {
    "event_id": "e_004",
    "store_id": "st_seongsu",
    "sku": "P-100",
    "ts": "2026-05-01T13:03:00",
    "type": "exit",
    "session_id": "sess_1"
  },
  {
    "event_id": "e_005",
    "store_id": "st_seongsu",
    "sku": "P-100",
    "ts": "2026-05-01T14:00:00",
    "type": "scan",
    "session_id": "sess_2"
  },
  {
    "event_id": "e_006",
    "store_id": "st_seongsu",
    "sku": "P-100",
    "ts": "2026-05-01T14:00:05",
    "type": "scan",
    "session_id": "sess_2"
  },
  {
    "event_id": "e_007",
    "store_id": "st_seongsu",
    "sku": "P-100",
    "ts": "2026-05-01T14:05:00",
    "type": "purchase",
    "session_id": "sess_2"
  },
  {
    "event_id": "e_008",
    "store_id": "st_hongdae",
    "sku": "P-102",
    "ts": "2026-05-02T11:00:00",
    "type": "scan",
    "session_id": "sess_3"
  },
  {
    "event_id": "e_009",
    "store_id": "st_hongdae",
    "sku": null,
    "ts": "2026-05-02T11:01:00",
    "type": "scan",
    "session_id": "sess_4"
  },
  {
    "event_id": "e_010",
    "store_id": "st_hongdae",
    "sku": "P-103",
    "ts": "2026-05-02T11:10:00",
    "type": "exit",
    "session_id": "sess_5"
  },
  {
    "event_id": "e_011",
    "store_id": "st_seongsu",
    "sku": "P-101",
    "ts": "2026-05-03T15:00:00",
    "type": "scan",
    "session_id": "sess_6"
  }
]