3D 面板参考图菜单的边界 refs 数组稳定下来

- src/components/image-editor/model3d-generation/Model3dGenerationModal.tsx：boundaryRefs 用 useMemo 缓存，避免每次渲染都新建数组导致浮层 dismiss effect 反复解绑/重挂 document 监听

src/components/image-editor/model3d-generation/Model3dGenerationModal.tsx

@@ -5,6 +5,7 @@ import type {
   RefObject,
   SetStateAction,
 } from 'react';
+import { useMemo } from 'react';
 
 import { PlatformActionButton } from '../../common/PlatformActionButton';
 import { PlatformStatusMessage } from '../../common/PlatformStatusMessage';
@@ -82,9 +83,14 @@ export function Model3dGenerationModal({
   const submitDialog =
     dialog.status === 'failed' ? refreshModel3dAttemptNonce(dialog) : dialog;
 
+  // 每次都新建数组会让上面的 dismiss effect 每次渲染都重挂监听；ref 对象本身是稳定的。
+  const referenceMenuBoundaryRefs = useMemo(
+    () => [generationReferenceButtonRef],
+    [generationReferenceButtonRef],
+  );
   useImageCanvasFloatingOptionDismiss({
     isOpen: isImageMode && isGenerationReferenceMenuOpen,
-    boundaryRefs: [generationReferenceButtonRef],
+    boundaryRefs: referenceMenuBoundaryRefs,
     onDismiss: () => setIsGenerationReferenceMenuOpen?.(false),
   });