feat: 迁移BimEngine到radial+dock并完善测量/剖切/漫游面板

src/managers/bottom-dock-manager.ts

@@ -144,13 +144,25 @@ export class BottomDockManager extends BaseManager {
         this.register({
             id: 'section',
             title: '剖切',
-            createContent: () => this.stack.createPlaceholderContent('剖切面板占位')
+            createContent: () => {
+                const sectionPanel = this.registry.sectionDock?.getPanelElement();
+                if (sectionPanel) {
+                    return sectionPanel;
+                }
+                return this.stack.createPlaceholderContent('剖切面板占位');
+            }
         });
 
         this.register({
             id: 'walk',
             title: '漫游',
-            createContent: () => this.stack.createPlaceholderContent('漫游面板占位')
+            createContent: () => {
+                const walkPanel = this.registry.walkDock?.getPanelElement();
+                if (walkPanel) {
+                    return walkPanel;
+                }
+                return this.stack.createPlaceholderContent('漫游面板占位');
+            }
         });
     }
 }