feat(section-axis): integrate dialog manager with engine methods

src/managers/section-axis-dialog-manager.ts

@@ -57,13 +57,16 @@ export class SectionAxisDialogManager extends BaseDialogManager {
             defaultAxis: 'x',
             defaultHidden: false,
             onHideToggle: (isHidden) => {
-                console.log('[SectionAxisDialogManager] 隐藏切换：', isHidden);
+                // 隐藏功能：第三方引擎无 API，仅输出日志
+                console.log('[SectionAxisDialogManager] 隐藏切换（暂不支持）：', isHidden);
             },
             onReverse: () => {
-                console.log('[SectionAxisDialogManager] 反向剖切');
+                // 反向功能：第三方引擎无 API，仅输出日志
+                console.log('[SectionAxisDialogManager] 反向剖切（暂不支持）');
             },
             onAxisChange: (axis) => {
                 console.log('[SectionAxisDialogManager] 切换轴向：', axis);
+                this.registry.engine3d?.activateSectionAxis(axis);
             }
         });
         this.panel.init();
@@ -73,6 +76,15 @@ export class SectionAxisDialogManager extends BaseDialogManager {
     /** 对话框创建后的回调，自适应高度 */
     protected onDialogCreated(): void {
         this.dialog?.fitHeight(false);
+        
+        // 检查 Engine 是否已初始化
+        if (!this.registry.engine3d) {
+            console.error('[SectionAxisDialogManager] Engine not initialized. Call initEngine() first.');
+            return;
+        }
+        
+        // 自动激活默认轴向剖切（X轴）
+        this.registry.engine3d.activateSectionAxis('x');
     }
 
     /** 对话框关闭时的回调，取消工具栏按钮激活状态 */
@@ -82,6 +94,9 @@ export class SectionAxisDialogManager extends BaseDialogManager {
 
     /** 销毁前的清理，销毁面板实例 */
     protected onBeforeDestroy(): void {
+        // 停用轴向剖切
+        this.registry.engine3d?.deactivateSectionAxis();
+        
         if (this.panel) {
             this.panel.destroy();
             this.panel = null;