부가서비스: 계좌명 인증 상태 표시 및 날짜 선택기 개선

- AccountHolderAuth에서 transferStatus 기반 성공/실패 표시 추가
- SingleDatePicker 컴포넌트 생성 및 링크결제 Step1에 적용
- 각 리스트 아이템에 key prop 추가로 React 경고 해결

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

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

src/shared/constants/paths.ts

@@ -188,7 +188,17 @@ export const PATHS: RouteNamesType = {
         ROUTE_NAMES.additionalService.accountHolderSearch.request,
       )
     },
-    accountHolderAuth: generatePath(ROUTE_NAMES.additionalService.base, ROUTE_NAMES.additionalService.accountHolderAuth),
+    accountHolderAuth: {
+      base: generatePath(ROUTE_NAMES.additionalService.base, ROUTE_NAMES.additionalService.accountHolderAuth.base),
+      list: generatePath(
+        `${ROUTE_NAMES.additionalService.base}${ROUTE_NAMES.additionalService.accountHolderAuth.base}`,
+        ROUTE_NAMES.additionalService.accountHolderAuth.list
+      ),
+      detail: generatePath(
+        `${ROUTE_NAMES.additionalService.base}${ROUTE_NAMES.additionalService.accountHolderAuth.base}`,
+        ROUTE_NAMES.additionalService.accountHolderAuth.detail
+      ),
+    },
     linkPayment: {
       base: generatePath(`${ROUTE_NAMES.additionalService.base}${ROUTE_NAMES.additionalService.linkPayment.base}`),
       shippingHistory: generatePath(

src/shared/constants/route-names.ts

@@ -89,7 +89,11 @@ export const ROUTE_NAMES = {
       detail: 'detail',
       request: 'request'
     },
-    accountHolderAuth: 'account-holder-auth',
+    accountHolderAuth: {
+      base: '/account-holder-auth/*',
+      list: 'list',
+      detail: 'detail'
+    },
     linkPayment: {
       base: '/link-payment/*',
       shippingHistory: 'shipping-history',