- Fix critical SQL error: ArchiveService queried installment_cheques ORDER BY
  due_date but actual column is cheque_date (broke auto-completion flow)
- Include development_fee in debt table calculation (was missing 35 EGP per sub)
- Add form_number field to waiver requests (migration + create/show views)
- Block children over 21 from being transferred as children (must be temporary)
- Add board approval and age checks to auto-complete status indicator
- Update architecture map to reflect that dependents ARE transferred
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>