refactor(managers): accept registry parameter via constructor injection

All 16 managers now receive ManagerRegistry instance through constructor
instead of calling ManagerRegistry.getInstance(). This enables each
BimEngine instance to have its own isolated set of managers.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/managers/walk-path-dialog-manager.ts

@@ -3,6 +3,7 @@
  * 负责管理漫游路径设置对话框的显示和交互
  */
 import { BaseDialogManager } from '../core/base-dialog-manager';
+import { ManagerRegistry } from '../core/manager-registry';
 import { WalkPathPanel } from '../components/walk-path-panel';
 
 /**
@@ -13,6 +14,10 @@ export class WalkPathDialogManager extends BaseDialogManager {
     /** 漫游路径面板实例 */
     private panel: WalkPathPanel | null = null;
 
+    constructor(registry: ManagerRegistry) {
+        super(registry);
+    }
+
     /** 对话框唯一标识 */
     protected get dialogId() { return 'walk-path-dialog'; }
     /** 对话框标题（国际化 key） */
@@ -45,7 +50,7 @@ export class WalkPathDialogManager extends BaseDialogManager {
 
     /** 创建对话框内容 */
     protected createContent(): HTMLElement {
-        this.panel = new WalkPathPanel();
+        this.panel = new WalkPathPanel(this.registry);
         this.panel.init();
         return this.panel.element;
     }