- checkDebtsComprehensive() returns per-person breakdown (name, type, debt_type, period, amount)
- getDependentDetails() calculates age, DOB, age category for children
- New sendToCashier route creates payment request in TARGET member's name (buyer pays)
- Detailed receipt breakdown with both member names and per-category fees
- show.php: per-person debt table, children comparison, status indicators, go-to-payment button
- create.php: detailed debt display with person labels, children age table
- Status flow: requested → approved → send to cashier → fee_paid → complete
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>