surface placement

packages/core/src/schema/nodes/item.ts

@@ -31,7 +31,7 @@ export const ItemNode = BaseNode.extend({
   position: z.tuple([z.number(), z.number(), z.number()]).default([0, 0, 0]),
   rotation: z.tuple([z.number(), z.number(), z.number()]).default([0, 0, 0]),
   side: z.enum(['front', 'back']).optional(),
-  children: z.array(z.string()).default([]),
+  children: z.array(objectId('item')).default([]),
 
   // Wall attachment properties (only used when asset.attachTo is "wall" or "wall-side")
   wallId: z.string().optional(),

packages/viewer/src/components/renderers/item/item-renderer.tsx

@@ -45,7 +45,7 @@ export const ItemRenderer = ({ node }: { node: ItemNode }) => {
         <ModelRenderer node={node} />
       </Suspense>
       {node.children?.map((childId) => (
-        <NodeRenderer key={childId} nodeId={childId as ItemNode['id']} />
+        <NodeRenderer key={childId} nodeId={childId } />
         ))}
     </group>
   )