让节点拖动与缩放用同一套树/尺寸判据

useNodeTransformInteraction.ts 的 onNodePointerDown 补上 !tree || !logicalSize 守卫，与 onNodeResizePointerDown 一致：命中不到树或逻辑尺寸时不再启动手势并占用指针捕获

apps/ai-game-creator-shell/src/view/ui-editor/components/preview/useNodeTransformInteraction.ts

@@ -248,6 +248,8 @@ export function useNodeTransformInteraction({
         event.button !== 0 ||
         spaceHeld ||
         !treeId ||
+        !tree ||
+        !logicalSize ||
         node.id === tree?.root.id ||
         !isFiniteTransform(node.layout.transform)
       ) {