추가수정

frontend/src/hooks/useChartRealtimeData.ts

@@ -9,6 +9,8 @@ interface Options {
   onNewCandle: (bar: OHLCVBar) => void;
   enabled?: boolean;
   deepObvHistory?: boolean;
+  /** 직접 지정할 페치 봉 수 — UPBIT_DIRECT 전용 (deepObvHistory·WARMUP_COUNT 무시) */
+  fetchCount?: number;
   source?: ChartRealtimeSource;
 }
 
@@ -29,6 +31,7 @@ export function useChartRealtimeData(
     onNewCandle: opts.onNewCandle,
     enabled: opts.enabled !== false && !useStomp,
     deepObvHistory: opts.deepObvHistory,
+    fetchCount: opts.fetchCount,
   });
   return useStomp ? stomp : upbit;
 }

frontend/src/hooks/useUpbitData.ts

@@ -26,6 +26,8 @@ interface UpbitDataOptions {
   enabled?:     boolean;
   /** OBV 등 누적 지표: 상장 이력에 가깝게 장기 캔들 로드 */
   deepObvHistory?: boolean;
+  /** 직접 지정할 페치 봉 수 (deepObvHistory·WARMUP_COUNT 무시) */
+  fetchCount?: number;
 }
 
 interface UseUpbitDataReturn {
@@ -88,9 +90,8 @@ export function useUpbitData(
     const marketChanged = prevMarketRef.current !== '' && prevMarketRef.current !== market;
     prevMarketRef.current = market;
 
-    const fetchCount = opts.deepObvHistory
-      ? OBV_DEEP_HISTORY
-      : DISPLAY_COUNT + WARMUP_COUNT;
+    const fetchCount = opts.fetchCount
+      ?? (opts.deepObvHistory ? OBV_DEEP_HISTORY : DISPLAY_COUNT + WARMUP_COUNT);
 
     fetchUpbitCandlesCached(market, timeframe, fetchCount, marketChanged)
       .then(newBars => {
@@ -108,7 +109,7 @@ export function useUpbitData(
       });
 
     return () => { cancelled = true; };
-  }, [market, timeframe, opts.enabled, opts.deepObvHistory]);
+  }, [market, timeframe, opts.enabled, opts.deepObvHistory, opts.fetchCount]);
 
   // ── 2. WebSocket: 실시간 체결 구독 ────────────────────────────────────
   const handleMessage = useCallback((msg: UpbitMessage) => {