feat: 대시보드 메뉴 DASHBOARD_MENU_ALLOWED_EMAILS(.env) 화이트리스트

- OPS 로그인 이메일만 메뉴·/dashboard·경영성과 API 허용
- DEV 옵션: DASHBOARD_MENU_DEV_USE_MEETING_EMAIL+MEETING_DEV_EMAIL

Made-with: Cursor

views/partials/nav.ejs

@@ -28,8 +28,11 @@
   <a href="/learning" class="nav-item <%= activeMenu === 'learning' ? 'active' : '' %>">학습센터</a>
   <a href="/ax-apply" class="nav-item <%= activeMenu === 'ax-apply' ? 'active' : '' %>">과제신청</a>
   <a href="/ai-cases" class="nav-item <%= activeMenu === 'ai-cases' ? 'active' : '' %>">성공사례</a>
+  <% var _dashOk = typeof dashboardMenuAllowed !== 'undefined' && dashboardMenuAllowed; %>
+  <% if (_dashOk) { %>
   <div class="nav-separator"></div>
   <a href="/dashboard" class="nav-item <%= activeMenu === 'dashboard' ? 'active' : '' %>">대시보드</a>
+  <% } %>
   <div class="nav-footer">
     <% var _opsLoggedIn = typeof opsUserEmail !== 'undefined' && opsUserEmail; %>
     <% var _admin = typeof adminMode !== 'undefined' && adminMode; %>