feat(WEB): 권한 관리 시스템 구현 및 상세 페이지 권한 통합

- PermissionContext, usePermission 훅, PermissionGuard 컴포넌트 신규 추가
- AccessDenied 접근 거부 페이지 추가
- permissions lib (체커, 매퍼, 타입) 구현
- BadDebtDetail, BoardDetail, LaborDetail, PricingDetail 등 상세 페이지 권한 적용
- ProcessDetail, StepDetail, ItemDetail, PermissionDetail 권한 연동
- RootProvider에 PermissionProvider 통합
- protected layout 권한 체크 추가
- Claude 프로젝트 설정 파일 추가

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/components/items/ItemDetailClient.tsx

@@ -30,6 +30,7 @@ import { ArrowLeft, Edit, Package, FileImage, Download, FileText, Check, Calenda
 import { downloadFileById } from '@/lib/utils/fileDownload';
 import { isNextRedirectError } from '@/lib/utils/redirect-error';
 import { useMenuStore } from '@/store/menuStore';
+import { usePermission } from '@/hooks/usePermission';
 
 interface ItemDetailClientProps {
   item: ItemMaster;
@@ -96,6 +97,7 @@ function getStorageUrl(path: string | undefined): string | null {
 export default function ItemDetailClient({ item }: ItemDetailClientProps) {
   const router = useRouter();
   const sidebarCollapsed = useMenuStore((state) => state.sidebarCollapsed);
+  const { canUpdate } = usePermission();
 
   return (
     <div className="space-y-6 pb-24">
@@ -625,13 +627,15 @@ export default function ItemDetailClient({ item }: ItemDetailClientProps) {
           <ArrowLeft className="w-4 h-4 mr-2" />
           목록으로
         </Button>
-        <Button
-          type="button"
-          onClick={() => router.push(`/production/screen-production/${encodeURIComponent(item.itemCode)}?mode=edit&type=${item.itemType}&id=${item.id}`)}
-        >
-          <Edit className="w-4 h-4 mr-2" />
-          수정
-        </Button>
+        {canUpdate && (
+          <Button
+            type="button"
+            onClick={() => router.push(`/production/screen-production/${encodeURIComponent(item.itemCode)}?mode=edit&type=${item.itemType}&id=${item.id}`)}
+          >
+            <Edit className="w-4 h-4 mr-2" />
+            수정
+          </Button>
+        )}
       </div>
     </div>
   );