feat: 更新填充组图层背景命令，增强图层管理和颜色填充功能，优化图层选择和渲染逻辑

src/component/Canvas/CanvasEditor/managers/LayerManager.js

@@ -89,6 +89,7 @@ export class LayerManager {
     this.activeLayerId = options.activeLayerId;
     this.commandManager = options.commandManager;
     this.canvasManager = options.canvasManager || null;
+    this.lastSelectLayerId = options.lastSelectLayerId || { value: null }; // 上次选中的图层ID
 
     this.backgroundFillManager = new BackgroundFillManager({
       canvas: this.canvas,
@@ -394,6 +395,7 @@ export class LayerManager {
    * @param {boolean} undoable 是否可撤销
    */
   async fillLayerBackground(layerId, fillColor, undoable = true) {
+    layerId = this.activeLayerId.value || layerId;
     await this.backgroundFillManager.fillLayerBackground(layerId, fillColor, undoable);
   }
 
@@ -708,6 +710,7 @@ export class LayerManager {
    * @param {string} layerId 图层ID
    */
   setActiveLayer(layerId, options = {}) {
+    // this.lastSelectLayerId.value = layerId; // 更新最后选择的图层ID
     if (layerId === this.activeLayerId.value) {
       console.warn("当前图层已是活动图层，无需重复设置");
       return;
@@ -953,13 +956,13 @@ export class LayerManager {
         }
       }
 
-      if (child.fill) {
-        // 如果图层有填充颜色，设置所有对象的填充颜色
-        const { object } = findObjectById(this.canvas, child.fill.id);
-        if (object) {
-          acc.push(object);
-        }
-      }
+      // if (child.fill) {
+      //   // 如果图层有填充颜色，设置所有对象的填充颜色
+      //   const { object } = findObjectById(this.canvas, child.fill.id);
+      //   if (object) {
+      //     acc.push(object);
+      //   }
+      // }
 
       return acc;
     }, []);