{"event_id": "original", "recorded_at_kst": "2026-07-23T10:00:00+09:00", "check_in": {"water_liters": 3.0, "protein_g": 188}}
{"event_id": "correction-1", "recorded_at_kst": "2026-07-23T10:15:00+09:00", "supersedes": "original", "check_in": {"water_liters": 5.0, "protein_g": 188}}
{"event_id": "correction-2", "recorded_at_kst": "2026-07-23T10:30:00+09:00", "supersedes": "correction-1", "check_in": {"water_liters": 3.0, "protein_g": 190}}