전략 시간봉 오류 수정

frontend/src/utils/backendApi.ts

@@ -329,10 +329,10 @@ export async function saveIndicatorSettings(
  * 앱 시작 시 호출 — 전역 시각 기본값을 DB 에서 가져온다.
  */
 export async function loadIndicatorVisualSettings(): Promise<
-  Record<string, { plots?: unknown[]; hlines?: unknown[] }>
+  Record<string, { plots?: unknown[]; hlines?: unknown[]; cloudColors?: unknown; bandBackground?: unknown }>
 > {
   return (
-    (await request<Record<string, { plots?: unknown[]; hlines?: unknown[] }>>(
+    (await request<Record<string, { plots?: unknown[]; hlines?: unknown[]; cloudColors?: unknown; bandBackground?: unknown }>>(
       '/indicator-settings/visual'
     )) ?? {}
   );
@@ -347,7 +347,7 @@ export async function loadIndicatorVisualSettings(): Promise<
  */
 export async function saveIndicatorVisualSettings(
   indicatorType: string,
-  visual: { plots?: unknown[]; hlines?: unknown[] }
+  visual: { plots?: unknown[]; hlines?: unknown[]; cloudColors?: unknown; bandBackground?: unknown },
 ): Promise<void> {
   await request(`/indicator-settings/${encodeURIComponent(indicatorType)}/visual`, {
     method: 'PATCH',