Localize home notice date format based on language

- Add formatDate function to display dates based on current language
- Korean (ko): YY년 MM월 DD일 format (e.g., 25년 10월 31일)
- English (en): YYYY.MM.DD format (e.g., 2025.10.31)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/entities/home/ui/home-notice-item.tsx

@@ -10,7 +10,16 @@ export const HomeNoticeItem = ({
   setDetailData,
 }: NoticeItemProps) => {
   const { navigate } = useNavigate();
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+
+  const formatDate = (date?: string) => {
+    if (!date) return '';
+    const currentLang = i18n.language;
+    if (currentLang === 'ko') {
+      return moment(date).format('YY년 MM월 DD일');
+    }
+    return moment(date).format('YYYY.MM.DD');
+  };
 
   const onClickToDetail = () => {
     if(setDetailData){
@@ -29,7 +38,7 @@ export const HomeNoticeItem = ({
       >
         <div className="notice-content">
           <div className="notice-title">{ noticeItem.title }</div>
-          <div className="notice-meta">{ t(`support.notice.categories.${noticeItem.informCl}`) }<span>{ noticeItem.regDt? moment(noticeItem.regDt).format('YYYY.MM.DD'): '' }</span></div>
+          <div className="notice-meta">{ t(`support.notice.categories.${noticeItem.informCl}`) }<span>{ formatDate(noticeItem.regDt) }</span></div>
         </div>
         <div className="notice-arrow">
           <img