fix: 백테스팅 실행 시 인디케이터 파라미터(indicatorParams) 전달

BacktestHistoryPage와 StrategyEditorPage의 handleQuickRun에서
runBacktest 호출 시 loadIndicatorSettings()로 사용자 저장 파라미터를
불러와 indicatorParams로 함께 전송한다.

이를 통해 백엔드가 기본값(kLength=14, smooth=3) 대신 사용자 설정값
(kLength=12, smooth=5 등)으로 지표를 계산하여 차트와 동일한
스토캐스틱 교차 지점에서 정확히 시그널을 생성한다.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/components/BacktestHistoryPage.tsx

@@ -13,6 +13,7 @@ import {
   loadStrategies,
   runBacktest,
   loadBacktestSettings,
+  loadIndicatorSettings,
   API_BASE,
   type BacktestResultRecord,
   type BacktestAnalysis,
@@ -221,8 +222,9 @@ export function BacktestHistoryPage({ theme = 'dark' }: Props) {
     setRunLoading(true);
     setRunError(null);
     try {
-      const [settings, barsRes] = await Promise.all([
+      const [settings, indicatorParams, barsRes] = await Promise.all([
         loadBacktestSettings(),
+        loadIndicatorSettings(),
         fetch(`${API_BASE}/candles/history?${new URLSearchParams({
           market: runMarket,
           type:   timeframeToCandleType(runTimeframe),
@@ -242,6 +244,7 @@ export function BacktestHistoryPage({ theme = 'dark' }: Props) {
         bars,
         timeframe:      runTimeframe,
         settings,
+        indicatorParams,
         symbol:         runMarket,
         strategyName:   strategy?.name,
       });

frontend/src/components/StrategyEditorPage.tsx

@@ -86,7 +86,7 @@ import { readStoredSize, storeSize, usePanelResize } from './strategyEditor/useP
 import StrategyDescriptionModal from './strategyEditor/StrategyDescriptionModal';
 import ReactDOM from 'react-dom';
 import { MarketSearchPanel } from './MarketSearchPanel';
-import { runBacktest, loadBacktestSettings, API_BASE } from '../utils/backendApi';
+import { runBacktest, loadBacktestSettings, loadIndicatorSettings, API_BASE } from '../utils/backendApi';
 import { timeframeToCandleType } from '../utils/chartCandleType';
 import { getKoreanName } from '../utils/marketNameCache';
 import type { Timeframe } from '../types';
@@ -981,8 +981,9 @@ export default function StrategyEditorPage({ theme, onNavigateToBacktest }: Prop
     setQbError(null);
     try {
       const selectedStrategy = strategies.find(s => s.id === selectedId);
-      const [settings, barsRes] = await Promise.all([
+      const [settings, indicatorParams, barsRes] = await Promise.all([
         loadBacktestSettings(),
+        loadIndicatorSettings(),
         fetch(`${API_BASE}/candles/history?${new URLSearchParams({
           market: qbMarket,
           type:   timeframeToCandleType(qbTimeframe),
@@ -1001,6 +1002,7 @@ export default function StrategyEditorPage({ theme, onNavigateToBacktest }: Prop
         bars,
         timeframe:      qbTimeframe,
         settings,
+        indicatorParams,
         symbol:         qbMarket,
         strategyName:   selectedStrategy?.name,
       });