feat(tksupport): 전체 휴가관리 대시보드 개편 — 연간 총괄 + 월간 캘린더 뷰

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

tksupport/api/routes/vacationDashboardRoutes.js

@@ -6,5 +6,7 @@ const ctrl = require('../controllers/vacationDashboardController');
 router.use(requireAuth);
 
 router.get('/', requireSupportTeam, ctrl.getDashboard);
+router.get('/yearly-overview', requireSupportTeam, ctrl.getYearlyOverview);
+router.get('/monthly-detail', requireSupportTeam, ctrl.getMonthlyDetail);
 
 module.exports = router;