- Installments: controller now computes pendingCount before passing to show view,
  fixing Undefined variable crash at show.php:4

- Transfers: add فصل أبناء employment-status workflow
  - Migration Phase_94_002 adds is_employed, graduation_date, work_date,
    date_turned_25, effective_transfer_date columns to transfer_requests
  - SeparationFeeCalculator: new calculateYearsFloor() (floor, never rounds up),
    computeChildSeparationDates() (effective = min(work_date, date_25) or date_25),
    calculateForChildSeparation() (uses floor years + current subscription price)
  - TransferController store(): reads employment fields, computes effective date,
    routes to new calculator for child_separation; saves all new fields
  - calculateFee API: supports transfer_type=child_separation with employment fields
  - create.php: new فصل أبناء section with employment radio, graduation date,
    work date (conditional), auto-computed date_turned_25, effective date display,
    live elapsed-years preview via AJAX
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>