- Added 'both_working' case type detection via spouse.classification field
  (annual subscription only, 0% separation fee per bylaws)
- Restored DIVORCE_CHILD_UNDER_12 percentage from 5% back to 15% per bylaws
- Unified joined_after suggested percentage to 50% regardless of spouse order
- Updated show.php to display both_working scenario in board panel
- Updated architecture map with corrected business rules
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>