Refactor AlertDialog and Dialog components to improve tab management and visibility handling. Updated effectiveOpen logic and adjusted display styles based on tab activity.

frontend/components/ui/alert-dialog.tsx

@@ -31,7 +31,7 @@ const AlertDialog: React.FC<React.ComponentProps<typeof AlertDialogPrimitive.Roo
   const isTabActiveRef = React.useRef(isTabActive);
   isTabActiveRef.current = isTabActive;
 
-  const effectiveOpen = open != null ? open && isTabActive : undefined;
+  const effectiveOpen = open != null ? open : undefined;
 
   const guardedOnOpenChange = React.useCallback(
     (newOpen: boolean) => {
@@ -94,6 +94,11 @@ const AlertDialogContent = React.forwardRef<
   const container = explicitContainer !== undefined ? explicitContainer : autoContainer;
   const scoped = React.useContext(ScopedAlertCtx);
 
+  // 탭 비활성 시 content를 언마운트하지 않고 CSS로 숨김 (자식 컴포넌트 상태 보존)
+  const tabId = useTabId();
+  const activeTabId = useTabStore((s) => s[s.mode].activeTabId);
+  const isTabActive = !tabId || tabId === activeTabId;
+
   const adjustedStyle = scoped && style
     ? { ...style, maxHeight: undefined, maxWidth: undefined }
     : style;
@@ -117,7 +122,7 @@ const AlertDialogContent = React.forwardRef<
       <DialogPrimitive.Portal container={container ?? undefined}>
         <div
           className="absolute inset-0 z-1050 flex items-center justify-center overflow-hidden p-4"
-          style={hiddenProp ? { display: "none" } : undefined}
+          style={(hiddenProp || !isTabActive) ? { display: "none" } : undefined}
         >
           <div className="absolute inset-0 bg-black/80" />
           <DialogPrimitive.Content

frontend/components/ui/dialog.tsx

@@ -28,7 +28,7 @@ const Dialog: React.FC<React.ComponentProps<typeof DialogPrimitive.Root>> = ({
   isTabActiveRef.current = isTabActive;
 
   const effectiveModal = modal !== undefined ? modal : !scoped ? undefined : false;
-  const effectiveOpen = open != null ? open && isTabActive : undefined;
+  const effectiveOpen = open != null ? open : undefined;
 
   // 비활성 탭에서 발생하는 onOpenChange(false) 차단
   // (탭 전환 시 content unmount → focus 이동 → Radix가 onOpenChange(false)를 호출하는 것을 방지)
@@ -83,6 +83,11 @@ const DialogContent = React.forwardRef<
   const container = explicitContainer !== undefined ? explicitContainer : autoContainer;
   const scoped = !!container;
 
+  // 탭 비활성 시 content를 언마운트하지 않고 CSS로 숨김 (자식 컴포넌트 상태 보존)
+  const tabId = useTabId();
+  const activeTabId = useTabStore((s) => s[s.mode].activeTabId);
+  const isTabActive = !tabId || tabId === activeTabId;
+
   // state 기반 ref: DialogPrimitive.Content 마운트/언마운트 시 useEffect 재실행 보장
   const [contentNode, setContentNode] = React.useState<HTMLDivElement | null>(null);
   const mergedRef = React.useCallback(
@@ -130,7 +135,7 @@ const DialogContent = React.forwardRef<
     <DialogPortal container={container ?? undefined}>
       <div
         className={scoped ? "absolute inset-0 z-999 flex items-center justify-center overflow-hidden p-4" : undefined}
-        style={hiddenProp ? { display: "none" } : undefined}
+        style={(hiddenProp || (scoped && !isTabActive)) ? { display: "none" } : undefined}
       >
         {scoped ? (
           <div className="absolute inset-0 bg-black/60" />