- Add identity_type field (patient/parent) to distinguish 病友/家長
- Add guardian_member_id for parent-child relationships
- Add guardian() and dependents() relationships
- Add isPatient(), isParent() helper methods
- Add identity_type_label accessor
Data updated:
- 47 members set as patient, 4 as parent
- 25 members with approved disability, 26 without
- 張序 linked to guardian 張誠駿
- Payment amounts corrected based on 2024 accounting records
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
gbanyan
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