fix attach items

packages/core/src/systems/item/item-system.tsx

@@ -24,14 +24,13 @@ export const ItemSystem = () => {
       const mesh = sceneRegistry.nodes.get(id) as THREE.Object3D
       if (!mesh) return
 
-
       if (item.asset.attachTo === 'wall-side') {
         // Wall-attached item: offset Z by half the parent wall's thickness
         const parentWall = item.parentId ? nodes[item.parentId as AnyNodeId] : undefined
         if (parentWall && parentWall.type === 'wall') {
           const wallThickness = (parentWall as WallNode).thickness ?? 0.1
           const side = item.side === 'front' ? 1 : -1
-          mesh.position.z = (wallThickness / 2) * side
+          mesh.position.z = (wallThickness / 2) * side;
         }
       } else if (!item.asset.attachTo) {
         // Floor item: elevate by slab height (using full footprint overlap)

packages/core/src/systems/wall/wall-system.tsx

@@ -37,7 +37,6 @@ export const WallSystem = () => {
       const levelId = node.parentId
       if (!levelId) return
 
-
       if (!dirtyWallsByLevel.has(levelId)) {
         dirtyWallsByLevel.set(levelId, new Set())
       }
@@ -117,7 +116,6 @@ function updateWallGeometry(wallId: string, miterData: WallMiterData) {
 
   mesh.geometry.dispose()
   mesh.geometry = newGeo
-
   // Update collision mesh
   const collisionMesh = mesh.getObjectByName('collision-mesh') as THREE.Mesh
   if (collisionMesh) {