feat: 점검 페이지 추가, external gamedata 호출 추가

layers/components/blocks/LanguageSwitcher.vue

@@ -67,10 +67,10 @@ const config = useRuntimeConfig()
 const baseDomain = `${config.public.baseDomain}`
 
 const gameDataStore = useGameDataStore()
-
+const { gameData } = storeToRefs(gameDataStore)
 // 사용 가능한 언어 목록
 const availableLanguages = computed(() => {
-  return gameDataStore.gameData?.lang_codes?.map(localeCode => ({
+  return gameData.value?.lang_codes?.map(localeCode => ({
     code: localeCode,
     name: getLanguageName(localeCode)
   })) || [{ code: 'ko', name: '한국어' }]