obv 그래프 수정

frontend/src/components/tradeNotification/TradeSignalMiniChart.tsx

@@ -21,6 +21,7 @@ import { DEFAULT_DISPLAY_TIMEZONE } from '../../utils/timezone';
 import { useIndicatorSettings } from '../../hooks/useIndicatorSettings';
 import { useSessionCandleOverlayControls } from '../../hooks/useSessionCandleOverlayControls';
 import { ensurePaperChartOverlays } from '../../utils/strategyToChartIndicators';
+import { enrichIndicatorConfig } from '../../utils/indicatorRegistry';
 import {
   applyNotificationSignalMarkers,
   type TradeSignalChartMarker,
@@ -68,7 +69,7 @@ const TradeSignalMiniChart: React.FC<Props> = ({
   signalMarkerRef.current = signalMarker;
 
   const baseIndicators = useMemo(
-    () => ensurePaperChartOverlays(indicators, getParams, getVisualConfig),
+    () => ensurePaperChartOverlays(indicators, getParams, getVisualConfig).map(enrichIndicatorConfig),
     [indicators, getParams, getVisualConfig],
   );
 
@@ -117,6 +118,7 @@ const TradeSignalMiniChart: React.FC<Props> = ({
     }
     syncChartLayout();
     applySignalMarkers();
+    void mgr?.repairDualLineSeries();
   }, [syncChartLayout, applySignalMarkers]);
 
   const handleManagerReady = useCallback((mgr: ChartManager) => {
@@ -162,7 +164,8 @@ const TradeSignalMiniChart: React.FC<Props> = ({
   const { isLoadingMore } = useHistoryLoader({
     symbol: market,
     timeframe,
-    isUpbit: useUpbit && enabled,
+    /** OBV — 백엔드 history volume=0 봉 prepend 시 본선 왜곡 방지 */
+    isUpbit: useUpbit && enabled && !needsDeepObv,
     managerRef,
   });