Frontend updates: caching basic data (json) from CDragon

Implement caching in the patch_detector, consume the cache from API routes in frontend

frontend/components/ChampionSelector.vue

@@ -2,8 +2,6 @@
 import { debounce, isEmpty } from '~/utils/helpers'
 
 // Constants
-const CDRAGON_CHAMPIONS_URL =
-  CDRAGON_BASE + 'plugins/rcp-be-lol-game-data/global/default/v1/champion-summary.json'
 const CHAMPIONS_API_URL = '/api/champions'
 
 // State
@@ -11,7 +9,7 @@ const {
   data: championsData,
   pending: loadingChampions,
   error: championsError
-} = useFetch(CDRAGON_CHAMPIONS_URL, {
+} = useFetch('/api/cdragon/champion-summary', {
   key: 'champions-data',
   lazy: false,
   server: false // Disable server-side fetching to avoid hydration issues