feat(WEB): 전체 페이지 ?mode= URL 네비게이션 패턴 적용

- 등록(?mode=new), 상세(?mode=view), 수정(?mode=edit) URL 패턴 일괄 적용
- 중복 패턴 제거: /edit?mode=edit → ?mode=edit (16개 파일)
- 제목 일관성: {기능} 등록/상세/수정 패턴 적용
- 검수 체크리스트 문서 추가 (79개 페이지)
- UniversalListPage, IntegratedDetailTemplate 공통 컴포넌트 개선

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

src/components/accounting/BillManagement/BillDetail.tsx

@@ -163,7 +163,7 @@ export function BillDetail({ billId, mode }: BillDetailProps) {
       if (isNewMode) {
         router.push('/ko/accounting/bills');
       } else {
-        router.push(`/ko/accounting/bills/${billId}`);
+        router.push(`/ko/accounting/bills/${billId}?mode=view`);
       }
       return { success: true };
     } else {
@@ -434,10 +434,12 @@ export function BillDetail({ billId, mode }: BillDetailProps) {
   );
 
   // ===== 템플릿 모드 및 동적 설정 =====
+  // IntegratedDetailTemplate: create → "{title} 등록", view → "{title}", edit → "{title} 수정"
+  // view 모드에서 "어음 상세"로 표시하려면 직접 설정 필요
   const templateMode = isNewMode ? 'create' : mode;
   const dynamicConfig = {
     ...billConfig,
-    title: isNewMode ? '어음 등록' : '어음 상세',
+    title: isViewMode ? '어음 상세' : '어음',
     actions: {
       ...billConfig.actions,
       submitLabel: isNewMode ? '등록' : '저장',

src/components/accounting/BillManagement/BillManagementClient.tsx

@@ -150,7 +150,7 @@ export function BillManagementClient({
 
   // ===== 액션 핸들러 =====
   const handleRowClick = useCallback((item: BillRecord) => {
-    router.push(`/ko/accounting/bills/${item.id}`);
+    router.push(`/ko/accounting/bills/${item.id}?mode=view`);
   }, [router]);
 
   const handleDeleteClick = useCallback((id: string) => {
@@ -425,7 +425,7 @@ export function BillManagementClient({
       // 등록 버튼
       createButton: {
         label: '어음 등록',
-        onClick: () => router.push('/ko/accounting/bills/new'),
+        onClick: () => router.push('/ko/accounting/bills?mode=new'),
         icon: Plus,
       },
 

src/components/accounting/BillManagement/index.tsx

@@ -169,7 +169,7 @@ export function BillManagement({ initialVendorId, initialBillType }: BillManagem
 
   // ===== 핸들러 =====
   const handleRowClick = useCallback((item: BillRecord) => {
-    router.push(`/ko/accounting/bills/${item.id}`);
+    router.push(`/ko/accounting/bills/${item.id}?mode=view`);
   }, [router]);
 
   const handleEdit = useCallback((item: BillRecord) => {
@@ -177,7 +177,7 @@ export function BillManagement({ initialVendorId, initialBillType }: BillManagem
   }, [router]);
 
   const handleCreate = useCallback(() => {
-    router.push('/ko/accounting/bills/new');
+    router.push('/ko/accounting/bills?mode=new');
   }, [router]);
 
   // 저장 핸들러 (선택된 항목의 상태 일괄 변경)