Delete row 41 from invoices

id 41
trainer_id 2
student_id 4
invoice_no 2026-0015
category lesson
lines [{"service":"Einzelstunde am 16.09.202 ...
total_cents 7000
status open
issued_at 2026-09-16 07:56:04
paid_at NULL
archived_at NULL
reminder1_at NULL
reminder2_at NULL
paid_method NULL
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