```

feat(Materials): 更新CoreBattleGround材质贴图和缩放参数

更换了CoreBattleGround材质的主纹理，将纹理GUID从73e4d6cf089824c0cadfcefa5b15d306
更新为c6af6f473739fb546ac7775e5c957da1，并调整纹理缩放参数从{x: 3, y: 4}修改为
{x: 1, y: 1}，同时移除了多余的_MetallicGlossMap配置项。
```

Assets/Materials/CoreBattleGround.mat

@@ -46,8 +46,8 @@ Material:
         m_Scale: {x: 3, y: 4}
         m_Offset: {x: 0, y: 0}
     - _MainTex:
-        m_Texture: {fileID: 2800000, guid: 73e4d6cf089824c0cadfcefa5b15d306, type: 3}
-        m_Scale: {x: 3, y: 4}
+        m_Texture: {fileID: 2800000, guid: c6af6f473739fb546ac7775e5c957da1, type: 3}
+        m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
     - _MetallicGlossMap:
         m_Texture: {fileID: 0}