feat(tksupport): Sprint 001 Section C — 전사 휴가관리 구현

- 전사 휴가 부여/관리 (company-holidays) CRUD + 연차차감 트랜잭션
- 전체 휴가관리 대시보드 (vacation-dashboard) 부서별/직원별 현황
- 내 휴가 현황 개선 (/my-status) balance_type별 카드, 전사 휴가일
- requireSupportTeam 미들웨어, 부서명 JOIN, 마이그레이션 002 추가
- 사이드바 roles 기반 메뉴 필터링 (하위호환 유지)

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

tksupport/api/controllers/vacationController.js

@@ -1,5 +1,6 @@
 const vacationRequestModel = require('../models/vacationRequestModel');
 const vacationBalanceModel = require('../models/vacationBalanceModel');
+const companyHolidayModel = require('../models/companyHolidayModel');
 const { getPool } = require('../middleware/auth');
 
 const vacationController = {
@@ -228,6 +229,29 @@ const vacationController = {
     }
   },
 
+  // ─── 내 휴가 현황 ───
+
+  async getMyStatus(req, res) {
+    try {
+      const userId = req.user.user_id || req.user.id;
+      const year = parseInt(req.query.year) || new Date().getFullYear();
+      const startOfYear = `${year}-01-01`;
+      const endOfYear = `${year}-12-31`;
+      const [balances, requests, holidays] = await Promise.all([
+        vacationBalanceModel.getByUserAndYear(userId, year),
+        vacationRequestModel.getAll({ user_id: userId, start_date: startOfYear, end_date: endOfYear }),
+        companyHolidayModel.getByYear(year)
+      ]);
+      res.json({
+        success: true,
+        data: { balances, requests, company_holidays: holidays, overtime_hours: null }
+      });
+    } catch (error) {
+      console.error('내 휴가 현황 조회 오류:', error);
+      res.status(500).json({ success: false, error: '서버 오류가 발생했습니다' });
+    }
+  },
+
   // ─── 잔여일 ───
 
   async getMyBalance(req, res) {