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/models/vacationBalanceModel.js

@@ -6,6 +6,8 @@ const vacationBalanceModel = {
     const [rows] = await db.query(`
       SELECT
         vb.*,
+        vb.balance_type,
+        vb.expires_at,
         vt.type_name,
         vt.type_code,
         vt.priority,
@@ -13,7 +15,7 @@ const vacationBalanceModel = {
         (vb.total_days - vb.used_days) as remaining_days
       FROM sp_vacation_balances vb
       INNER JOIN vacation_types vt ON vb.vacation_type_id = vt.id
-      WHERE vb.user_id = ? AND vb.year = ?
+      WHERE vb.user_id = ? AND (vb.year = ? OR (vb.balance_type = 'LONG_SERVICE' AND vb.expires_at IS NULL))
       ORDER BY vt.priority ASC, vt.type_name ASC
     `, [userId, year]);
     return rows;
@@ -24,9 +26,12 @@ const vacationBalanceModel = {
     const [rows] = await db.query(`
       SELECT
         vb.*,
+        vb.balance_type,
         su.name as user_name,
         su.username,
         su.hire_date,
+        su.department_id,
+        COALESCE(d.department_name, '미배정') as department_name,
         vt.type_name,
         vt.type_code,
         vt.priority,
@@ -34,7 +39,8 @@ const vacationBalanceModel = {
       FROM sp_vacation_balances vb
       INNER JOIN sso_users su ON vb.user_id = su.user_id
       INNER JOIN vacation_types vt ON vb.vacation_type_id = vt.id
-      WHERE vb.year = ? AND su.is_active = 1
+      LEFT JOIN departments d ON su.department_id = d.department_id
+      WHERE (vb.year = ? OR (vb.balance_type = 'LONG_SERVICE' AND vb.expires_at IS NULL)) AND su.is_active = 1
       ORDER BY su.name ASC, vt.priority ASC
     `, [year]);
     return rows;
@@ -42,14 +48,16 @@ const vacationBalanceModel = {
 
   async allocate(data) {
     const db = getPool();
+    const balanceType = data.balance_type || 'AUTO';
+    const expiresAt = data.expires_at || null;
     const [result] = await db.query(`
-      INSERT INTO sp_vacation_balances (user_id, vacation_type_id, year, total_days, used_days, notes, created_by)
-      VALUES (?, ?, ?, ?, 0, ?, ?)
+      INSERT INTO sp_vacation_balances (user_id, vacation_type_id, year, total_days, used_days, notes, created_by, balance_type, expires_at)
+      VALUES (?, ?, ?, ?, 0, ?, ?, ?, ?)
       ON DUPLICATE KEY UPDATE
         total_days = VALUES(total_days),
         notes = VALUES(notes),
         updated_at = NOW()
-    `, [data.user_id, data.vacation_type_id, data.year, data.total_days, data.notes || null, data.created_by]);
+    `, [data.user_id, data.vacation_type_id, data.year, data.total_days, data.notes || null, data.created_by, balanceType, expiresAt]);
     return result;
   },