feat(clipping): implement hide/recover toggle for all section dialogs

Update all three section dialogs to support hide/show toggle:

SectionAxisDialogManager:
- onHideToggle now calls hideSection()/recoverSection()

SectionBoxDialogManager:
- onHideToggle now calls hideSection()/recoverSection()

SectionPlanePanel:
- Add isHidden state tracking
- Change onHide to onHideToggle(isHidden)
- Add setHiddenState/getHiddenState methods
- Update button to toggle active state

SectionPlaneDialogManager:
- Switch to onHideToggle callback
- Call hideSection()/recoverSection() based on toggle state

Behavior: Click hide button to hide section, click again to recover.

src/core/manager-registry.ts

@@ -21,6 +21,7 @@ import type { SectionBoxDialogManager } from '../managers/section-box-dialog-man
 import type { WalkPathDialogManager } from '../managers/walk-path-dialog-manager';
 import type { WalkPlanViewDialogManager } from '../managers/walk-plan-view-dialog-manager';
 import type { ComponentDetailManager } from '../managers/component-detail-manager';
+import type { AiChatManager } from '../managers/ai-chat-manager';
 
 /**
  * Manager 注册表 - 单例模式
@@ -68,6 +69,8 @@ export class ManagerRegistry {
     public walkPlanView: WalkPlanViewDialogManager | null = null;
     /** 构件详情管理器 */
     public componentDetail: ComponentDetailManager | null = null;
+    /** AI 聊天管理器 */
+    public aiChat: AiChatManager | null = null;
 
     private constructor() {}