feat: Implement wall asset management features including creation, instances, and rendering; enhance wall properties input validation

app/src/modules/builder/wall/Instances/instance/wall.tsx

@@ -154,7 +154,7 @@ function Wall({ wall }: { readonly wall: Wall }) {
                 <MeshDiscardMaterial />
 
                 {wall.decals.map((decal) => (
-                    <DecalInstance visible={visible} key={decal.decalUuid} decal={decal} />
+                    <DecalInstance zPosition={wall.wallThickness / 2 + 0.001} visible={visible} key={decal.decalUuid} decal={decal} />
                 ))}
             </mesh>
         </mesh>

app/src/modules/builder/wall/Instances/wallInstances.tsx

@@ -1,6 +1,5 @@
 import React, { useEffect, useMemo } from 'react';
 import { DoubleSide, RepeatWrapping, Shape, SRGBColorSpace, TextureLoader, Vector2, Vector3 } from 'three';
-import { Geometry } from '@react-three/csg';
 import { Html, Extrude } from '@react-three/drei';
 import { useLoader } from '@react-three/fiber';
 import { useSceneContext } from '../../../scene/sceneContext';
@@ -44,13 +43,9 @@ function WallInstances() {
         <>
             {!toggleView && walls.length > 1 && (
                 <>
-                    <mesh name='Walls-Group'>
-                        <Geometry useGroups>
-                            {walls.map((wall) => (
-                                <WallInstance key={wall.wallUuid} wall={wall} />
-                            ))}
-                        </Geometry>
-                    </mesh>
+                    {walls.map((wall) => (
+                        <WallInstance key={wall.wallUuid} wall={wall} />
+                    ))}
 
                     <group name='Wall-Floors-Group'>
                         {rooms.map((room, index) => (