[FALLO] student table keeps server ordering
[OK] student search auto-submit retained
[OK] student SQL orders numeric student code descending
[OK] guardian search auto-submit retained
[OK] guardians newest first
[OK] presencial search auto-submit retained
[OK] presencial newest by matricula timestamp
[OK] presencial table uses newest default
[FALLO] student filters use expanded grid
[OK] presencial search uses expanded grid
10 comprobaciones; 2 fallidas.