feat(cliproxyapi-plus): 升级至v6.9.9-0并更新文档

- 添加6.9.9-0版本的docker-compose.yml和data.yml
- 删除6.9.5-0版本的旧配置文件
- 更新README文档，增加详细配置说明
- 修改端口变量名使其更具描述性
- 更新文档链接至最新帮助中心

apps/cliproxyapi-plus/data.yml

@@ -18,7 +18,7 @@ additionalProperties:
   recommend: 0
   website: https://github.com/router-for-me/CLIProxyAPIPlus
   github: https://github.com/router-for-me/CLIProxyAPIPlus
-  document: https://github.com/router-for-me/CLIProxyAPIPlus
+  document: https://help.router-for.me/cn/introduction/quick-start.html
   architectures:
     - amd64
-    - arm64
+    - arm64