feat(tksupport): 전사 행정지원 서비스 신규 구축 (Phase 1 - 휴가신청)

sso_users 기반 전사 휴가신청/승인/잔여일 관리 서비스.
기존 tkfb의 workers 종속 휴가 기능을 전사 확장.

- API: Express + MariaDB, SSO JWT 인증, 자동 마이그레이션
- Web: 대시보드, 휴가 신청/현황/승인 페이지 (보라색 테마)
- DB: sp_vacation_requests, sp_vacation_balances 신규 테이블
- Docker: API(30600), Web(30680) 포트 구성

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -372,6 +372,46 @@ services:
     networks:
       - tk-network
 
+  # =================================================================
+  # Support (tksupport) - 전사 행정지원
+  # =================================================================
+
+  tksupport-api:
+    build:
+      context: ./tksupport/api
+      dockerfile: Dockerfile
+    container_name: tk-tksupport-api
+    restart: unless-stopped
+    ports:
+      - "30600:3000"
+    environment:
+      - NODE_ENV=production
+      - PORT=3000
+      - DB_HOST=mariadb
+      - DB_PORT=3306
+      - DB_USER=${MYSQL_USER:-hyungi_user}
+      - DB_PASSWORD=${MYSQL_PASSWORD}
+      - DB_NAME=${MYSQL_DATABASE:-hyungi}
+      - SSO_JWT_SECRET=${SSO_JWT_SECRET}
+    depends_on:
+      mariadb:
+        condition: service_healthy
+    networks:
+      - tk-network
+
+  tksupport-web:
+    build:
+      context: ./tksupport/web
+      dockerfile: Dockerfile
+    container_name: tk-tksupport-web
+    restart: unless-stopped
+    ports:
+      - "30680:80"
+    depends_on:
+      - tksupport-api
+    networks:
+      - tk-network
+
   # =================================================================
   # AI Service — 맥미니로 이전됨 (~/docker/tk-ai-service/)
   # =================================================================
@@ -434,6 +474,7 @@ services:
       - system3-web
       - tkpurchase-web
       - tksafety-web
+      - tksupport-web
     networks:
       - tk-network