- ElectionConfig: add isCandidateModificationLocked() — blocks remove/update/symbol after voting starts - ElectionWritePlatformServiceImpl: full audit logging on all 16 operations; failures logged in new transaction (REQUIRES_NEW) so they survive main tx rollback - DirectorAppointmentData: add memberId field for client photo lookup - DirectorAppointmentServiceImpl: batch-fetch candidate memberId via ElectionCandidateRepository; pass to response Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>