fix(WEB): 등록 버튼 링크를 ?mode=new 방식으로 변경

- 입금관리: /new → ?mode=new
- 출금관리: /new → ?mode=new
- 매출관리: /new → ?mode=new
- 카드관리: /new → ?mode=new

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

src/components/hr/CardManagement/index.tsx

@@ -162,7 +162,7 @@ export function CardManagement({ initialData }: CardManagementProps) {
 
   // 핸들러
   const handleAddCard = useCallback(() => {
-    router.push('/ko/hr/card-management/new');
+    router.push('/ko/hr/card-management?mode=new');
   }, [router]);
 
   const handleDeleteCard = useCallback(async () => {