차트 설정 수정

frontend/src/hooks/useVirtualTargetRegistry.ts

@@ -63,10 +63,6 @@ export function useVirtualTargetRegistry() {
 
   const remove = useCallback(async (market: string) => {
     if (!addedSet.has(market) || busyMarket === market) return;
-    if (targets.find(t => t.market === market)?.pinned) {
-      window.alert('고정된 종목은 투자대상에서 삭제할 수 없습니다.');
-      return;
-    }
     setBusyMarket(market);
     try {
       const next = await removeVirtualTarget(market);

frontend/src/hooks/useVirtualTradingCore.ts

@@ -117,7 +117,25 @@ export function useVirtualTradingCore(options: UseVirtualTradingCoreOptions = {}
         preferencesHydratedRef.current = true;
       }
       await Promise.all([
-        loadStrategies().then(s => { if (!cancelled) setStrategies(s); }).catch(() => { if (!cancelled) setStrategies([]); }),
+        loadStrategies().then(s => {
+          if (cancelled) return;
+          setStrategies(s);
+          const validIds = new Set(
+            s.map(x => x.id).filter((id): id is number => id != null && id > 0),
+          );
+          setSession(prev =>
+            prev.globalStrategyId != null && !validIds.has(prev.globalStrategyId)
+              ? { ...prev, globalStrategyId: null }
+              : prev,
+          );
+          setTargets(prev =>
+            prev.map(t =>
+              t.strategyId != null && !validIds.has(t.strategyId)
+                ? { ...t, strategyId: null }
+                : t,
+            ),
+          );
+        }).catch(() => { if (!cancelled) setStrategies([]); }),
         loadPaperSummary().then(s => { if (!cancelled) setSummary(s); }),
         loadPaperTrades().then(t => { if (!cancelled) setTrades(t); }),
       ]);
@@ -249,10 +267,8 @@ export function useVirtualTradingCore(options: UseVirtualTradingCoreOptions = {}
   }, [targets, virtualTargetMaxCount]);
 
   const handleRemoveTarget = useCallback((market: string) => {
-    const t = targets.find(x => x.market === market);
-    if (t?.pinned) return;
     setTargets(prev => prev.filter(x => x.market !== market));
-  }, [targets]);
+  }, []);
 
   const handleTogglePin = useCallback((market: string) => {
     setTargets(prev => {