전략편집기 화면접속 시 에러 수정

frontend/src/utils/tickerFeedPages.ts

@@ -0,0 +1,14 @@
+import type { MenuPage } from '../components/TopMenuBar';
+
+/** 실시간 ticker REST·WS가 필요한 메뉴 (전략편집기·설정 등 제외) */
+export const TICKER_FEED_PAGES: ReadonlySet<MenuPage> = new Set([
+  'chart',
+  'paper',
+  'virtual',
+  'trend-search',
+  'notifications',
+]);
+
+export function isTickerFeedPage(page: MenuPage): boolean {
+  return TICKER_FEED_PAGES.has(page);
+}

frontend/src/utils/upbitTickerFetch.ts

@@ -26,6 +26,8 @@ const CACHE_TTL_MS = 12_000;
 const ALL_CACHE_TTL_MS = 15_000;
 const UPBIT_COOLDOWN_MS = 45_000;
 const UPBIT_MIN_GAP_MS = 600;
+/** 프로덕션: 브라우저→업비트 직접 호출 금지(IP 429). 개발만 폴백 허용 */
+const ALLOW_UPBIT_DIRECT = import.meta.env.DEV;
 
 function sleep(ms: number): Promise<void> {
   return new Promise(r => setTimeout(r, ms));
@@ -172,6 +174,11 @@ async function fetchTickersCore(markets: string[]): Promise<UpbitTickerRaw[]> {
     }
   }
 
+  if (!ALLOW_UPBIT_DIRECT) {
+    const stale = mergeStale(want);
+    return stale.length > 0 ? stale : [];
+  }
+
   if (Date.now() < upbitCooldownUntil) {
     const stale = mergeStale(want);
     if (stale.length > 0) return stale;