- approvals 테이블: line_id, body, is_urgent, department_id 컬럼 추가 - approval_steps 테이블: approver_name, approver_department, approver_position 스냅샷 컬럼 추가
- approvals 테이블: line_id, body, is_urgent, department_id 컬럼 추가 - approval_steps 테이블: approver_name, approver_department, approver_position 스냅샷 컬럼 추가