보조지표 설정 저장 오류

frontend/src/utils/backendApi.ts

@@ -391,25 +391,43 @@ 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[]; cloudColors?: unknown; bandBackground?: unknown }>
+  Record<string, {
+    plots?: unknown[];
+    hlines?: unknown[];
+    plotVisibility?: Record<string, boolean>;
+    cloudColors?: unknown;
+    bandBackground?: unknown;
+  }>
 > {
   return (
-    (await request<Record<string, { plots?: unknown[]; hlines?: unknown[]; cloudColors?: unknown; bandBackground?: unknown }>>(
+    (await request<Record<string, {
+      plots?: unknown[];
+      hlines?: unknown[];
+      plotVisibility?: Record<string, boolean>;
+      cloudColors?: unknown;
+      bandBackground?: unknown;
+    }>>(
       '/indicator-settings/visual'
     )) ?? {}
   );
 }
 
 /**
- * 특정 지표의 시각 설정(색상·선굵기·수평선)을 저장.
+ * 특정 지표의 시각 설정(색상·선굵기·수평선·지표선 on/off)을 저장.
  * 사용자가 IndicatorSettingsModal 에서 색상·선굵기를 변경할 때 호출.
  *
  * @param indicatorType  지표 타입 (e.g. "RSI")
- * @param visual         { plots: PlotDef[], hlines: HLineDef[] }
+ * @param visual         { plots, hlines, plotVisibility, ... }
  */
 export async function saveIndicatorVisualSettings(
   indicatorType: string,
-  visual: { plots?: unknown[]; hlines?: unknown[]; cloudColors?: unknown; bandBackground?: unknown },
+  visual: {
+    plots?: unknown[];
+    hlines?: unknown[];
+    plotVisibility?: Record<string, boolean>;
+    cloudColors?: unknown;
+    bandBackground?: unknown;
+  },
 ): Promise<void> {
   await request(`/indicator-settings/${encodeURIComponent(indicatorType)}/visual`, {
     method: 'PATCH',