[Plugin] astrbot_plugin_three_body_wiki

### 插件信息

```json
{
  "name": "astrbot_plugin_three_body_wiki",
  "display_name": "灰机wiki搜索工具",
  "desc": "通过API调用在灰机wiki中搜索内容",
  "author": "J-SLY",
  "repo": "https://github.com/J-SLY/astrbot_plugin_three_body_wiki"
}
```

### 插件检查清单

- [x] 我的插件经过完整的测试
- [x] 我的插件不包含恶意代码
- [x] 我已阅读并同意遵守该项目的 [行为准则](https://docs.github.com/zh/site-policy/github-terms/github-community-code-of-conduct)。