refactor(section-managers): adapt to unified clipping API

SectionAxisDialogManager:
- Update activateSectionAxis → activeSection in callbacks

SectionBoxDialogManager:
- Update activateSectionBox → activeSection('box')
- Disable fitSectionBoxToModel and resetSectionBox (not supported)

SectionPlaneDialogManager:
- Add activeSection('face') to onDialogCreated
- Add deactivateSection() to onBeforeDestroy
- Wire onHide to engine.clipping.disabled()
- Keep onReverse/onReset as log-only (not supported)

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

@@ -66,7 +66,7 @@ export class SectionAxisDialogManager extends BaseDialogManager {
             },
             onAxisChange: (axis) => {
                 console.log('[SectionAxisDialogManager] 切换轴向：', axis);
-                this.registry.engine3d?.activateSectionAxis(axis);
+                this.registry.engine3d?.activeSection(axis);
             }
         });
         this.panel.init();
@@ -84,7 +84,7 @@ export class SectionAxisDialogManager extends BaseDialogManager {
         }
         
         // 自动激活默认轴向剖切（X轴）
-        this.registry.engine3d.activateSectionAxis('x');
+        this.registry.engine3d.activeSection('x');
     }
 
     /** 对话框关闭时的回调，取消工具栏按钮激活状态 */
@@ -94,8 +94,7 @@ 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();
+        this.registry.engine3d?.deactivateSection();
         
         if (this.panel) {
             this.panel.destroy();