가상투자 로직 변경

frontend/src/components/PaperTradingPage.tsx

@@ -117,9 +117,8 @@ const PaperTradingPage: React.FC<Props> = ({
     } finally {
       setInitialLoading(false);
     }
-    onPaperOrderFilled?.();
     if (opts?.focusHistory) setRightTab('history');
-  }, [onPaperOrderFilled]);
+  }, []);
 
   useEffect(() => {
     void Promise.all([

frontend/src/components/VirtualTradingPage.tsx

@@ -28,7 +28,7 @@ import {
 } from './virtual/VirtualGridUnifiedHeader';
 import type { VirtualCardDisplayMode } from './virtual/VirtualTargetCard';
 import { useVirtualIndicatorSnapshots } from '../hooks/useVirtualIndicatorSnapshots';
-import { useVirtualBackendTradeSignals } from '../hooks/useVirtualBackendTradeSignals';
+import { PAPER_TRADES_CHANGED_EVENT } from '../utils/paperTradeEvents';
 import { useVirtualTargetLiveStatus } from '../hooks/useVirtualTargetLiveStatus';
 import type { ChartRealtimeSource } from '../hooks/useChartRealtimeData';
 import {
@@ -195,15 +195,17 @@ const VirtualTradingPage: React.FC<Props> = ({
     session.running,
   );
 
-  useVirtualBackendTradeSignals({
-    enabled: paperTradingEnabled && paperAutoTradeEnabled,
-    session,
-    targets,
-    tickers,
-    paperAutoTradeBudgetPct,
-    positions: summary?.positions,
-    onFilled: () => void refreshPaperData({ focusHistory: true }),
-  });
+  /** 백엔드 자동 체결 후 UI 갱신(프론트는 주문 실행 안 함) */
+  useEffect(() => {
+    if (!session.running) return;
+    const onTradesChanged = () => { void refreshPaperData(); };
+    window.addEventListener(PAPER_TRADES_CHANGED_EVENT, onTradesChanged);
+    const pollId = window.setInterval(onTradesChanged, 20_000);
+    return () => {
+      window.removeEventListener(PAPER_TRADES_CHANGED_EVENT, onTradesChanged);
+      window.clearInterval(pollId);
+    };
+  }, [session.running, refreshPaperData]);
 
   const mergedLiveStatus = useMemo(() => {
     if (!session.running) return liveStatusByMarket;

frontend/src/components/paper/PaperLedgerTab.tsx

@@ -21,7 +21,7 @@ const PaperLedgerTab: React.FC<Props> = ({ refreshKey = 0 }) => {
 
   useEffect(() => {
     let cancelled = false;
-    setLoading(true);
+    if (entries.length === 0) setLoading(true);
     void loadPaperLedger({ page: 0, size: 50 }).then(page => {
       if (!cancelled) {
         setEntries(page.content);
@@ -29,6 +29,8 @@ const PaperLedgerTab: React.FC<Props> = ({ refreshKey = 0 }) => {
       }
     });
     return () => { cancelled = true; };
+    // entries.length: 최초 로드만 스피너 — 갱신 시 목록 유지(깜빡임 방지)
+    // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [refreshKey]);
 
   if (loading) return <p className="ptd-muted">원장 로딩…</p>;

frontend/src/components/paper/PaperLeftStrategyTab.tsx

@@ -85,8 +85,8 @@ const PaperLeftStrategyTab: React.FC<Props> = ({
       </div>
       <p className={`ptd-left-status ${paperAutoTradeEnabled ? 'ptd-left-status--on' : ''}`}>
         {paperAutoTradeEnabled
-          ? '자동매매 ON — 가상투자 Match 시 가상 계좌 자동 체결'
-          : '자동매매 OFF — 가상투자 타이틀바에서 변경'}
+          ? '자동매매 ON — 가상 Match 후 서버가 전략 시그널·모의 체결(화면 꺼져도 동작)'
+          : '자동매매 OFF — 수동 주문만 모의 계좌에 체결'}
       </p>
     </>
   );

frontend/src/components/virtual/VirtualGridUnifiedHeader.tsx

@@ -110,7 +110,7 @@ export const VirtualSessionHeaderControls: React.FC<SessionProps> = ({
           !paperTradingEnabled
             ? '설정 › 가상투자에서 가상매매를 활성화하세요'
             : paperAutoTradeEnabled
-              ? 'Match 충족 시 자동 매수·매도'
+              ? 'Match 시 서버 자동 체결(모의·자동매매 ON, 화면 불필요)'
               : '수동 주문만 가능'
         }
       >