feat: 添加对图层操作的支持，优化图层粘贴和变换命令，增强组图层遮罩位置更新逻辑

src/component/Canvas/CanvasEditor/components/LayersPanel/LayersPanel.vue

@@ -40,6 +40,7 @@ const emit = defineEmits([
 ]);
 
 const layers = inject("layers", []);
+const lastSelectLayerId = inject("lastSelectLayerId", null);
 
 const layerManager = inject("layerManager", {});
 
@@ -573,6 +574,7 @@ function handleLayerClick(layer, event) {
   if (event.ctrlKey || event.metaKey || event.shiftKey || isMultiSelectMode.value) {
     toggleLayerSelection(layer, event);
   } else {
+    lastSelectLayerId.value = layer.id; // 更新最后选中的图层ID
     // 普通点击：进入单选模式
     // selectedLayerIds.value = [layer.id];
     // isMultiSelectMode.value = false;