전략편집기 시간봉 선택오류 수정

frontend/src/components/TradingChart.tsx

@@ -167,6 +167,8 @@ interface TradingChartProps {
   crosshairInfoVisible?: boolean;
   /** 외부 캔들 데이터 fetch 중 (실시간 차트 초기 로딩) */
   dataLoading?: boolean;
+  /** chartPaintReady 변경 알림 (워크스페이스 전체 로딩 오버레이용) */
+  onChartPaintReadyChange?: (ready: boolean) => void;
   /** 마운트 시 캔들 pane 전체보기(하단 보조지표 pane 숨김) — 가상매매 카드 등 */
   defaultCandleOnly?: boolean;
   /** 캔들 pane 좌하단 전체보기/복원 버튼 (기본 true) */
@@ -236,6 +238,7 @@ const TradingChart: React.FC<TradingChartProps> = ({
   showCandleOverlayControls = false,
   crosshairInfoVisible = true,
   dataLoading = false,
+  onChartPaintReadyChange,
   defaultCandleOnly = false,
   showCandlePaneControls = true,
   candleOverlayToggles,
@@ -399,6 +402,14 @@ const TradingChart: React.FC<TradingChartProps> = ({
     chartVisibleRef.current = chartVisible;
   }, [chartVisible]);
 
+  useEffect(() => {
+    if (dataLoading) setChartPaintReady(false);
+  }, [dataLoading]);
+
+  useEffect(() => {
+    onChartPaintReadyChange?.(chartPaintReady && !dataLoading);
+  }, [chartPaintReady, dataLoading, onChartPaintReadyChange]);
+
   useEffect(() => {
     const el = containerRef.current;
     if (!el) return;
@@ -976,12 +987,18 @@ const TradingChart: React.FC<TradingChartProps> = ({
       } while (reloadCoalesceRef.current);
     } finally {
       reloadInFlightRef.current = false;
-      if (managerRef.current?.hasMainSeries()) {
-        setChartPaintReady(true);
-      }
       if (reloadCoalesceRef.current) {
         reloadCoalesceRef.current = false;
         queueFullReload();
+        return;
+      }
+      const m = managerRef.current;
+      if (m?.hasMainSeries()) {
+        const expected = countExpectedVisibleIndicators(indicatorsRef.current);
+        const loaded = m.getLoadedIndicatorCount();
+        if (expected === 0 || loaded >= expected) {
+          setChartPaintReady(true);
+        }
       }
     }
   }, [normalizeChartViewport, onCandlesReady, onDataLoaded, displayTimezone, timeframe, market, queueFullReload, queueIndicatorRecovery]);