- monthlyComparisonModel: vacation_types.deduct_days AS vacation_days 추가
- monthlyComparisonController: vacationDays++ → parseFloat(attend.vacation_days) 소수 지원
- monthly-comparison.js: confirmMonth/submitReject 이중 제출 방지 (isProcessing 플래그)
- vacationBalanceModel: create/update/delete/bulkCreate → sp_vacation_balances + balance_type 매핑
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>