Delete row 54 from invoices

id 54
trainer_id 11
student_id 29
invoice_no R-2026-0019
category card_purchase
lines [{"label":"10er Karte","quanti ...
total_cents 59900
status draft
issued_at 2026-10-13 10:55:35
paid_at NULL
archived_at NULL
reminder1_at NULL
reminder2_at NULL
paid_method NULL
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