[Plugin] astrbot_plugin_xiaozhao_smart_mention

### 插件信息

```json
{
  "name": "astrbot_plugin_xiaozhao_smart_mention",
  "display_name": "自定义关键词智能提及回复",
  "desc": "群聊提到自定义关键词时，智能判断是否需要机器人自然回应",
  "author": "zhao",
  "repo": "https://github.com/ZhaoJun233/astrbot_plugin_xiaozhao_smart_mention",
  "tags": [
    "群聊",
    "智能回复",
    "提及",
    "自定义关键词"
  ]
}
```

### 插件检查清单

- 我的插件经过完整的测试
- 我的插件不包含恶意代码
- 我已阅读并同意遵守该项目的行为准则。