실시간 차트 갱신오류 수정

frontend/src/chart/ChartWorkspaceView.tsx

@@ -752,7 +752,7 @@ function ChartWorkspaceViewInner(props: ChartWorkspaceViewProps) {
                 if (last && pending.time === last.time) mgr.updateBar(pending);
                 else if (!last || pending.time > last.time) void mgr.appendBar(pending);
                 else mgr.updateBar({ ...pending, time: last.time });
-              } else {
+              } else if (chartLiveReadyRef.current) {
                 pendingRealtimeBarRef.current = null;
               }
               mgr.setCandleAreaPriceLabelsEnabled(chartCandleAreaPriceLabels);

frontend/src/components/ChartSlot.tsx

@@ -1014,7 +1014,7 @@ const ChartSlot = forwardRef<ChartSlotHandle, ChartSlotProps>(function ChartSlot
               if (last && pending.time === last.time) mgr.updateBar(pending);
               else if (!last || pending.time > last.time) void mgr.appendBar(pending);
               else mgr.updateBar({ ...pending, time: last.time });
-            } else {
+            } else if (chartLiveReadyRef.current) {
               pendingRealtimeBarRef.current = null;
             }
             mgr.setCandleAreaPriceLabelsEnabled(chartCandleAreaPriceLabels);

frontend/src/components/TradingChart.tsx

@@ -994,6 +994,8 @@ const TradingChart: React.FC<TradingChartProps> = ({
       }
       const m = managerRef.current;
       if (m?.hasMainSeries()) {
+        // 지표 일부만 로드된 경우에도 메인 캔들은 준비됨 — 실시간 틱 허용
+        onCandlesReady?.();
         const expected = countExpectedVisibleIndicators(indicatorsRef.current);
         const loaded = m.getLoadedIndicatorCount();
         if (expected === 0 || loaded >= expected) {

frontend/src/utils/chartLiveQuote.ts

@@ -17,10 +17,15 @@ export function resolveChartLiveQuote(
   lastBar: OHLCVBar | null,
   bars: OHLCVBar[],
 ): ChartLiveQuote {
+  // 실시간 차트: STOMP/WS로 갱신되는 최신 봉 종가 우선 (티커 REST 초기값에 고정되지 않도록)
+  const barPrice = lastBar?.close;
+  const tickerPrice = ticker?.tradePrice;
   const price =
-    ticker?.tradePrice != null && Number.isFinite(ticker.tradePrice)
-      ? ticker.tradePrice
-      : lastBar?.close ?? null;
+    barPrice != null && Number.isFinite(barPrice)
+      ? barPrice
+      : tickerPrice != null && Number.isFinite(tickerPrice)
+        ? tickerPrice
+        : null;
 
   if (ticker?.changeRate != null && Number.isFinite(ticker.changeRate)) {
     const changePct = ticker.changeRate * 100;