ARS 결제 다국어 지원 추가

- 신용카드 ARS 결제 페이지에 i18n 적용
- 한글/영문 번역 키 추가 (ko.json, en.json)
- 페이지 제목, 버튼, 레이블 현지화

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

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

src/locales/en.json

@@ -868,12 +868,14 @@
             "agreeOrReject": "Agree/Reject Settlement"
         },
         "ars": {
+            "title": "Credit Card ARS Payment",
             "paymentComplete": "Payment Complete",
             "unpaid": "Unpaid",
             "pendingPayment": "Pending Payment",
             "paymentSuccess": "Payment Success",
             "expired": "Expired",
-            "canceled": "Canceled"
+            "canceled": "Canceled",
+            "paymentRequest": "Payment Request"
         },
         "sms": {
             "title": "SMS Payment Notification",

src/locales/ko.json

@@ -868,12 +868,14 @@
             "agreeOrReject": "정산 동의/거절"
         },
         "ars": {
+            "title": "신용카드 ARS 결제",
             "paymentComplete": "결제완료",
             "unpaid": "미결제",
             "pendingPayment": "결제대기",
             "paymentSuccess": "결제성공",
             "expired": "기간만료",
-            "canceled": "취소완료"
+            "canceled": "취소완료",
+            "paymentRequest": "결제 신청"
         },
         "sms": {
             "title": "SMS 결제 통보",

src/pages/additional-service/ars/list-page.tsx

@@ -69,7 +69,7 @@ export const ArsListPage = () => {
     onIntersect 
   });
 
-  useSetHeaderTitle('신용카드 ARS 결제');
+  useSetHeaderTitle(t('additionalService.ars.title'));
   useSetHeaderType(HeaderType.LeftArrow);
   useSetFooterMode(false);
   useSetOnBack(() => {
@@ -248,23 +248,23 @@ export const ArsListPage = () => {
                   />
                   <button
                     className="filter-btn"
-                    aria-label="필터"
+                    aria-label={t('filter.filter')}
                     onClick={() => onClickToOpenFilter()}
                   >
                     <img
                       src={IMAGE_ROOT + '/ico_setting.svg'}
-                      alt="검색옵션"
+                      alt={t('common.searchOptions')}
                     />
                   </button>
                 </div>
                 <button
                   className="download-btn"
-                  aria-label="다운로드"
+                  aria-label={t('common.download')}
                   onClick={() => onClickToOpenEmailBottomSheet()}
                 >
                   <img
                     src={IMAGE_ROOT + '/ico_download.svg'}
-                    alt="다운로드"
+                    alt={t('common.download')}
                   />
                 </button>
               </div>
@@ -300,7 +300,7 @@ export const ArsListPage = () => {
           <button
             className="btn-50 btn-blue flex-1"
             onClick={() => onClickToNavigate()}
-          >결제 신청</button>
+          >{t('additionalService.ars.paymentRequest')}</button>
         </div>
       </main>
       <ArsFilter