showing what is placeable or not

apps/editor/components/tools/item/item-tool.tsx

@@ -74,12 +74,11 @@ export const ItemTool: React.FC = () => {
             [0, 0, 0],
             [draftItem.current.id],
           );
-          console.log(
-            "placeable",
-            placeable,
-            [gridPosition.current.x, 0, gridPosition.current.z],
-            selectedItem.dimensions,
-          );
+          if (placeable.valid) {
+            cursorRef.current.material.color.set("green");
+          } else {
+            cursorRef.current.material.color.set("red");
+          }
         }
       }
     };

packages/core/src/hooks/spatial-grid/spatial-grid.ts

@@ -49,7 +49,10 @@ export class SpatialGrid {
     const maxZ = z + rotatedD / 2;
 
     const [minCx, minCz] = this.posToCell(minX, minZ);
-    const [maxCx, maxCz] = this.posToCell(maxX, maxZ);
+    // Use exclusive upper bound: subtract epsilon so exact boundaries don't overlap
+    // This allows adjacent items (touching but not overlapping) to not conflict
+    const epsilon = 1e-6;
+    const [maxCx, maxCz] = this.posToCell(maxX - epsilon, maxZ - epsilon);
 
     const keys: CellKey[] = [];
     for (let cx = minCx; cx <= maxCx; cx++) {

packages/core/src/hooks/spatial-grid/use-spatial-query.ts

@@ -11,7 +11,6 @@ export function useSpatialQuery() {
       rotation: [number, number, number],
       ignoreIds?: string[],
     ) => {
-      console.log("spatialGridManager in useSpatialQuery:", spatialGridManager);
       return spatialGridManager.canPlaceOnFloor(
         levelId,
         position,