fix(monthly-comparison): 근태 인라인 수정 — vacation_type_id 응답 추가 + 조퇴 옵션

- API 응답에 attendance_type_id, vacation_type_id, vacation_days 포함
- 드롭다운에 조퇴(id=10) 옵션 추가
- onVacTypeChange에 조퇴→2시간 매핑

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

system1-factory/web/pages/attendance/monthly-comparison.html

@@ -164,7 +164,7 @@
 
     <script src="/static/js/tkfb-core.js?v=2026033108"></script>
     <script src="/js/api-base.js?v=2026031701"></script>
-    <script src="/js/monthly-comparison.js?v=2026040106"></script>
+    <script src="/js/monthly-comparison.js?v=2026040107"></script>
     <script>initAuth();</script>
 </body>
 </html>