id trainer_id student_id invoice_no category lines total_cents status issued_at paid_at archived_at reminder1_at reminder2_at paid_method
8 5 6 2026-0001 lesson [{"service":"Einzelstunde","se ... 8000 open 2026-08-06 15:11:00 NULL NULL NULL NULL NULL Edit Delete
10 8 9 2026-0001 lesson [{"service":"Einzelstunde","se ... 6000 open 2026-08-14 18:50:38 NULL NULL NULL NULL NULL Edit Delete
11 2 8 2026-0001 bulk [{"service":"Freie Position"," ... 0 cancelled 2026-08-15 21:04:11 NULL NULL NULL NULL NULL Edit Delete
12 11 10 2026-0001 card [{"service":"10er Karte","serv ... 59900 paid 2026-08-17 07:47:23 2026-08-17 07:52:18 NULL NULL NULL NULL Edit Delete