지표탭 추가 수정

frontend/src/App.tsx

@@ -50,7 +50,7 @@ import {
   mergeIndicators,
   reorderIndicatorGroup,
   splitIndicatorPane,
-  buildIndicatorConfigsFromTypes,
+  replaceIndicatorConfigsFromTypes,
 } from './utils/indicatorPaneMerge';
 import { useAppSettings } from './hooks/useAppSettings';
 import { clampVirtualTargetMax } from './utils/virtualTargetLimits';
@@ -1368,7 +1368,7 @@ function App() {
     });
   }, [layoutDef.count, activeSlot, getParams, getVisualConfig]);
 
-  /** 지표 추가 팝업 — 탭 전체 추가 (한 번에 상태 반영) */
+  /** 지표 추가 팝업 — 탭 전체 추가 (기존 보조지표 제거 후 탭 지표만 적용) */
   const handleAddIndicators = useCallback((types: string[]) => {
     if (!types.length) return;
     if (layoutDef.count > 1) {
@@ -1378,10 +1378,9 @@ function App() {
         return;
       }
     }
-    setIndicators(prev => {
-      const added = buildIndicatorConfigsFromTypes(types, prev, getParams, getVisualConfig, newIndId);
-      return added.length > 0 ? [...prev, ...added] : prev;
-    });
+    setIndicators(
+      replaceIndicatorConfigsFromTypes(types, getParams, getVisualConfig, newIndId),
+    );
   }, [layoutDef.count, activeSlot, getParams, getVisualConfig]);
 
   /**