Delete row 6 from bookings

id 6
trainer_id 1
student_id 2
service_key s3
starts_at 2026-07-24T13:00:00.000Z
duration_min 90
card_id 1
invoice_id NULL
video_analysis NULL
notes NULL
status confirmed
created_at 2026-07-23 16:56:04
protocol NULL
protocol_approved_at NULL
confirmation_sent_at 2026-07-23 16:56:05
reminder_sent_at 2026-07-24 04:07:05
cancellation_sent_at NULL
video_unlocked_at NULL
video_invoice_id NULL
swing_metrics NULL
student_note NULL
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