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>

system3-nonconformance/web/issues-inbox.html

@@ -581,7 +581,7 @@
         async function initializeInbox() {
             console.log('🚀 수신함 초기화 시작');
             
-            const token = localStorage.getItem('access_token');
+            const token = TokenManager.getToken();
             console.log('토큰 존재:', !!token);
             
             if (!token) {
@@ -639,8 +639,8 @@
                 // 401 Unauthorized 에러인 경우만 로그아웃 처리
                 if (error.message && (error.message.includes('401') || error.message.includes('Unauthorized') || error.message.includes('Not authenticated'))) {
                     console.log('🔐 인증 토큰 만료 - 로그아웃 처리');
-                    localStorage.removeItem('access_token');
-                    localStorage.removeItem('currentUser');
+                    TokenManager.removeToken();
+                    TokenManager.removeUser();
                     window.location.href = '/index.html';
                 } else {
                     // 다른 에러는 사용자에게 알리고 계속 진행
@@ -671,7 +671,7 @@
                 const apiUrl = window.API_BASE_URL || 'http://localhost:16080/api';
                 const response = await fetch(`${apiUrl}/projects/`, {
                     headers: {
-                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Authorization': `Bearer ${TokenManager.getToken()}`,
                         'Content-Type': 'application/json'
                     }
                 });
@@ -718,7 +718,7 @@
                 
                 const response = await fetch(url, {
                     headers: {
-                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Authorization': `Bearer ${TokenManager.getToken()}`,
                         'Content-Type': 'application/json'
                     }
                 });
@@ -905,7 +905,7 @@
                 try {
                     const processedResponse = await fetch('/api/inbox/statistics', {
                         headers: {
-                            'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                            'Authorization': `Bearer ${TokenManager.getToken()}`,
                             'Content-Type': 'application/json'
                         }
                     });
@@ -1038,7 +1038,7 @@
             try {
                 const response = await fetch(`/api/inbox/management-issues${projectId ? `?project_id=${projectId}` : ''}`, {
                     headers: {
-                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`
+                        'Authorization': `Bearer ${TokenManager.getToken()}`
                     }
                 });
                 
@@ -1140,7 +1140,7 @@
                 const response = await fetch(`/api/inbox/${currentIssueId}/dispose`, {
                     method: 'POST',
                     headers: {
-                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Authorization': `Bearer ${TokenManager.getToken()}`,
                         'Content-Type': 'application/json'
                     },
                     body: JSON.stringify(requestBody)
@@ -1237,7 +1237,7 @@
                 const response = await fetch(`/api/inbox/${currentIssueId}/review`, {
                     method: 'POST',
                     headers: {
-                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Authorization': `Bearer ${TokenManager.getToken()}`,
                         'Content-Type': 'application/json'
                     },
                     body: JSON.stringify({
@@ -1388,7 +1388,7 @@
                 const response = await fetch(`/api/inbox/${currentIssueId}/status`, {
                     method: 'POST',
                     headers: {
-                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Authorization': `Bearer ${TokenManager.getToken()}`,
                         'Content-Type': 'application/json'
                     },
                     body: JSON.stringify(requestBody)