feat: SSO 쿠키 인증 통합 + 서브도메인 라우팅 아키텍처

- Path-based 라우팅을 서브도메인 기반으로 전환
  (tkfb/tkreport/tkqc.technicalkorea.net)
- 3개 시스템 프론트엔드에 SSO 쿠키 인증 통합
  (domain=.technicalkorea.net, localStorage 폴백)
- Gateway: 포털+로그인+System1 프록시, 쿠키 SSO 설정
- System 1: 토큰키 통일, nginx.conf 생성, 신고페이지 리다이렉트
- System 2: api-base.js/app-init.js 생성, getSSOToken() 통합
- System 3: TokenManager 쿠키 지원, 중앙 로그인 리다이렉트
- docker-compose.yml에 cloudflared 서비스 추가
- DEPLOY-GUIDE.md 배포 가이드 작성

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

system1-factory/fastapi-bridge/static/pages/admin/manage-daily-work.html

@@ -40,7 +40,7 @@ const AttendanceValidationPage = () => {
     try {
       const response = await fetch(`/api/workreports/date/${date}`, {
         headers: {
-          'Authorization': `Bearer ${localStorage.getItem('token')}`
+          'Authorization': `Bearer ${localStorage.getItem('sso_token')}`
         }
       });
       return await response.json();
@@ -54,7 +54,7 @@ const AttendanceValidationPage = () => {
     try {
       const response = await fetch(`/api/daily-work-reports/date/${date}`, {
         headers: {
-          'Authorization': `Bearer ${localStorage.getItem('token')}`
+          'Authorization': `Bearer ${localStorage.getItem('sso_token')}`
         }
       });
       return await response.json();
@@ -72,10 +72,10 @@ const AttendanceValidationPage = () => {
     try {
       const [workReports, dailyReports] = await Promise.all([
         fetch(`/api/workreports?start=${start}&end=${end}`, {
-          headers: { 'Authorization': `Bearer ${localStorage.getItem('token')}` }
+          headers: { 'Authorization': `Bearer ${localStorage.getItem('sso_token')}` }
         }).then(res => res.json()),
         fetch(`/api/daily-work-reports/search?start_date=${start}&end_date=${end}`, {
-          headers: { 'Authorization': `Bearer ${localStorage.getItem('token')}` }
+          headers: { 'Authorization': `Bearer ${localStorage.getItem('sso_token')}` }
         }).then(res => res.json())
       ]);