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/process-management/ProcessListClient.tsx

@@ -80,15 +80,15 @@ export default function ProcessListClient({ initialData = [], initialStats }: Pr
 
   // ===== 핸들러 =====
   const handleRowClick = useCallback((process: Process) => {
-    router.push(`/ko/master-data/process-management/${process.id}`);
+    router.push(`/ko/master-data/process-management/${process.id}?mode=view`);
   }, [router]);
 
   const handleCreate = useCallback(() => {
-    router.push('/ko/master-data/process-management/new');
+    router.push('/ko/master-data/process-management?mode=new');
   }, [router]);
 
   const handleEdit = useCallback((process: Process) => {
-    router.push(`/ko/master-data/process-management/${process.id}/edit`);
+    router.push(`/ko/master-data/process-management/${process.id}?mode=edit`);
   }, [router]);
 
   const handleDeleteClick = useCallback((processId: string) => {