feat: add shipping order and design management features

- Introduced new routes and controllers for managing shipping orders, including listing, saving, and previewing next order numbers.
- Added design management routes and controller for handling design requests, projects, tasks, and work logs.
- Implemented company code filtering for multi-tenancy support in both shipping order and design request functionalities.
- Enhanced the shipping plan routes to include listing and updating plans, improving overall shipping management capabilities.

These changes aim to provide comprehensive management features for shipping orders and design processes, facilitating better organization and tracking within the application.

frontend/components/layout/AdminPageRenderer.tsx

@@ -89,6 +89,20 @@ const ADMIN_PAGE_REGISTRY: Record<string, React.ComponentType<any>> = {
   // 자동화 관리
   "/admin/automaticMng/flowMgmtList": dynamic(() => import("@/app/(main)/admin/automaticMng/flowMgmtList/page"), { ssr: false, loading: LoadingFallback }),
   "/admin/automaticMng/batchmngList": dynamic(() => import("@/app/(main)/admin/automaticMng/batchmngList/page"), { ssr: false, loading: LoadingFallback }),
+
+  // 설계 관리 (커스텀 페이지)
+  "/design/task-management": dynamic(() => import("@/app/(main)/design/task-management/page"), { ssr: false, loading: LoadingFallback }),
+  "/design/my-work": dynamic(() => import("@/app/(main)/design/my-work/page"), { ssr: false, loading: LoadingFallback }),
+
+  // 영업 관리 (커스텀 페이지)
+  "/sales/shipping-plan": dynamic(() => import("@/app/(main)/sales/shipping-plan/page"), { ssr: false, loading: LoadingFallback }),
+  "/sales/shipping-order": dynamic(() => import("@/app/(main)/sales/shipping-order/page"), { ssr: false, loading: LoadingFallback }),
+
+  // 물류 관리 (커스텀 페이지)
+  "/logistics/material-status": dynamic(() => import("@/app/(main)/logistics/material-status/page"), { ssr: false, loading: LoadingFallback }),
+
+  // 설계 관리 (커스텀 페이지)
+  "/design/change-management": dynamic(() => import("@/app/(main)/design/change-management/page"), { ssr: false, loading: LoadingFallback }),
   "/admin/automaticMng/exconList": dynamic(() => import("@/app/(main)/admin/automaticMng/exconList/page"), { ssr: false, loading: LoadingFallback }),
   "/admin/automaticMng/exCallConfList": dynamic(() => import("@/app/(main)/admin/automaticMng/exCallConfList/page"), { ssr: false, loading: LoadingFallback }),
 

frontend/components/layout/AppLayout.tsx

@@ -428,6 +428,14 @@ function AppLayoutInner({ children }: AppLayoutProps) {
       return;
     }
 
+    // 4) 커스텀 페이지 URL (React 직접 구현 페이지) → admin 탭으로 렌더링
+    if (menu.url && menu.url !== "#" && !menu.url.startsWith("/screen/") && !menu.url.startsWith("/screens/")) {
+      console.log("[handleMenuClick] → 커스텀 페이지 탭:", menu.url);
+      openTab({ type: "admin", title: menuName, adminUrl: menu.url });
+      if (isMobile) setSidebarOpen(false);
+      return;
+    }
+
     console.warn("[handleMenuClick] 어떤 조건에도 매칭 안 됨:", { menuName, menuType: menu.menuType, url: menu.url, screenId: menu.screenId });
     toast.warning("이 메뉴에 할당된 화면이 없습니다. 메뉴 설정을 확인해주세요.");
   };