[
  {
    "session_no": "SS-2026W33-001",
    "scheduled_at": "2026-08-10T20:00:00",
    "learner_code_raw": "LN-1001",
    "language": "en",
    "level": "B1",
    "prep_minutes": 8.5,
    "attended": true,
    "talk_minutes": 24,
    "review_done_at": "2026-08-10T22:10:00",
    "tutor_code": "TU-31",
    "note": null
  },
  {
    "session_no": "SS-2026W33-002",
    "scheduled_at": "2026-08-10T21:00:00",
    "learner_code_raw": "LN-1002",
    "language": "en",
    "level": "A2",
    "prep_minutes": 0,
    "attended": true,
    "talk_minutes": 11.5,
    "review_done_at": null,
    "tutor_code": "TU-31",
    "note": "예습 없이 입장"
  },
  {
    "session_no": "SS-2026W33-003",
    "scheduled_at": "2026-08-11T07:00:00",
    "learner_code_raw": "LN-1003",
    "language": "ja",
    "level": "B2",
    "prep_minutes": 9,
    "attended": false,
    "talk_minutes": null,
    "review_done_at": null,
    "tutor_code": "TU-07",
    "note": "당일 취소"
  },
  {
    "session_no": "SS-2026W33-004",
    "scheduled_at": "2026-08-11T20:00:00",
    "learner_code_raw": "LN-1004",
    "language": "en",
    "level": null,
    "prep_minutes": null,
    "attended": true,
    "talk_minutes": 25,
    "review_done_at": "2026-08-12T09:30:00",
    "tutor_code": "TU-12",
    "note": "레벨 미배정"
  },
  {
    "session_no": "SS-2026W33-005",
    "scheduled_at": "2026-08-12T06:30:00",
    "learner_code_raw": "LN-1005",
    "language": "ja",
    "level": "A1",
    "prep_minutes": 12,
    "attended": true,
    "talk_minutes": 25,
    "review_done_at": "2026-08-12T08:00:00",
    "tutor_code": "TU-07",
    "note": null
  },
  {
    "session_no": "SS-2026W33-006",
    "scheduled_at": "2026-08-12T21:00:00",
    "learner_code_raw": "LN-1006",
    "language": "en",
    "level": "B1",
    "prep_minutes": 7.9,
    "attended": true,
    "talk_minutes": 25,
    "review_done_at": null,
    "tutor_code": "TU-12",
    "note": "복습 미완"
  },
  {
    "session_no": "SS-2026W33-007",
    "scheduled_at": "2026-08-13T20:30:00",
    "learner_code_raw": "ln 1002",
    "language": "en",
    "level": "A2",
    "prep_minutes": 8,
    "attended": true,
    "talk_minutes": 22,
    "review_done_at": "2026-08-13T23:40:00",
    "tutor_code": "TU-31",
    "note": "수강생 번호 표기 흔들림"
  },
  {
    "session_no": "SS-2026W33-008",
    "scheduled_at": "2026-08-13T21:30:00",
    "learner_code_raw": "LN-1007",
    "language": "en",
    "level": "C1",
    "prep_minutes": 0.5,
    "attended": true,
    "talk_minutes": 25,
    "review_done_at": "2026-08-14T07:20:00",
    "tutor_code": "TU-45",
    "note": "예습 짧지만 발화 충분"
  },
  {
    "session_no": "SS-2026W33-009",
    "scheduled_at": "2026-08-14T07:00:00",
    "learner_code_raw": "LN-1008",
    "language": "ko",
    "level": "A2",
    "prep_minutes": 8.2,
    "attended": false,
    "talk_minutes": null,
    "review_done_at": "2026-08-14T12:00:00",
    "tutor_code": "TU-19",
    "note": "결석했지만 복습은 완료"
  },
  {
    "session_no": "SS-2026W33-010",
    "scheduled_at": "2026-08-14T20:00:00",
    "learner_code_raw": "LN-1009",
    "language": "en",
    "level": "B2",
    "prep_minutes": 8,
    "attended": true,
    "talk_minutes": 0,
    "review_done_at": null,
    "tutor_code": "TU-45",
    "note": "입장했으나 발화 없음"
  },
  {
    "session_no": "SS-2026W33-010",
    "scheduled_at": "2026-08-14T20:00:00",
    "learner_code_raw": "LN-1009",
    "language": "en",
    "level": "B2",
    "prep_minutes": 8,
    "attended": true,
    "talk_minutes": 0,
    "review_done_at": null,
    "tutor_code": "TU-45",
    "note": "같은 회차가 두 번 올라옴"
  },
  {
    "session_no": "SS-2026W33-011",
    "scheduled_at": "2026-08-15T21:00:00",
    "learner_code_raw": "LN-9999",
    "language": "en",
    "level": "B1",
    "prep_minutes": 8,
    "attended": true,
    "talk_minutes": 23,
    "review_done_at": "2026-08-15T23:00:00",
    "tutor_code": "TU-12",
    "note": "등록 목록에 없는 수강생 번호"
  },
  {
    "session_no": "SS-2026W33-012",
    "scheduled_at": "2026-08-16T09:00:00",
    "learner_code_raw": "LN-1010",
    "language": "ja",
    "level": "A1",
    "prep_minutes": 8,
    "attended": true,
    "talk_minutes": 25,
    "review_done_at": "2026-08-16T11:00:00",
    "tutor_code": "TU-07",
    "note": null
  }
]