Update 1Panel AI appliance links in mkdocs.yml (#197)

Consolidate AI appliance links into a single entry.

Author: maninhill

mkdocs.yml

@@ -195,10 +195,7 @@ nav:
     - 版本功能对比: https://1panel.cn/versions.html
     - 1Panel 专业版: https://www.lxware.cn/1panel
     - 1Panel 企业版: https://1panel.cn/enterprise.html
-  - 1Panel AI 一体机:
-    - 1Panel AI 通用一体机: https://1panel.cn/deepseek-appliance.html
-    - 1Panel AI 编程一体机: https://1panel.cn/aicoding_gb10.html    
-    - 1Panel AI 助理一体机: https://1panel.cn/openclaw.html
+  - 1Panel AI 一体机: https://1panel.cn/ai-appliance.html
   - 联系我们: contact.md
 
 markdown_extensions: