refactor(engine-manager): update clipping API to unified activeSection

- Add activeSection(mode) method
- Add getCurrentSectionMode() method
- Remove deprecated methods: activateSectionAxis, activateSectionBox, etc.
- Keep deactivateSection() and setSectionBoxRange()
- Code reduction: ~78 lines → ~27 lines (65% reduction)

src/managers/engine-manager.ts

@@ -258,53 +258,28 @@ export class EngineManager extends BaseManager {
      * 激活轴向剖切
      * @param axis 要激活的轴向 ('x' | 'y' | 'z')
      */
-    public activateSectionAxis(axis: 'x' | 'y' | 'z'): void {
+    public activeSection(mode: 'x' | 'y' | 'z' | 'box' | 'face'): void {
         if (!this.engineInstance) {
             console.warn('[EngineManager] 3D Engine not initialized.');
             return;
         }
-        this.engineInstance.activateSectionAxis(axis);
+        this.engineInstance.activeSection(mode);
     }
 
-    /**
+    public getCurrentSectionMode(): 'x' | 'y' | 'z' | 'box' | 'face' | null {
-     * 停用轴向剖切
-     */
-    public deactivateSectionAxis(): void {
-        if (!this.engineInstance) {
-            return;
-        }
-        this.engineInstance.deactivateSectionAxis();
-    }
-
-    /**
-     * 获取当前剖切轴向
-     * @returns 当前激活的轴向
-     */
-    public getCurrentSectionAxis(): 'x' | 'y' | 'z' | null {
         if (!this.engineInstance) {
             return null;
         }
-        return this.engineInstance.getCurrentSectionAxis();
+        return this.engineInstance.getCurrentSectionMode();
     }
 
-    /** 激活剖切盒 */
+    public deactivateSection(): void {
-    public activateSectionBox(): void {
-        if (!this.engineInstance) {
-            console.warn('[EngineManager] 3D Engine not initialized.');
-            return;
-        }
-        this.engineInstance.activateSectionBox();
-    }
-
-    /** 停用剖切盒 */
-    public deactivateSectionBox(): void {
         if (!this.engineInstance) {
             return;
         }
-        this.engineInstance.deactivateSectionBox();
+        this.engineInstance.deactivateSection();
     }
 
-    /** 设置剖切盒范围（百分比 0-100） */
     public setSectionBoxRange(range: SectionBoxRange): void {
         if (!this.engineInstance) {
             console.warn('[EngineManager] 3D Engine not initialized.');
@@ -313,23 +288,6 @@ export class EngineManager extends BaseManager {
         this.engineInstance.setSectionBoxRange(range);
     }
 
-    /** 适应剖切盒到模型 */
-    public fitSectionBoxToModel(): void {
-        if (!this.engineInstance) {
-            console.warn('[EngineManager] 3D Engine not initialized.');
-            return;
-        }
-        this.engineInstance.fitSectionBoxToModel();
-    }
-
-    /** 重置剖切盒 */
-    public resetSectionBox(): void {
-        if (!this.engineInstance) {
-            return;
-        }
-        this.engineInstance.resetSectionBox();
-    }
-
     /** 激活框选放大功能 */
     public activateZoomBox(): void {
         if (!this.engineInstance) {