test mermaid

sequenceDiagram
    participant User as 你
    participant Obsidian as Obsidian插件
    participant GitHubAPI as GitHub接口
    participant Repo as blog仓库 main分支
    participant Actions as GitHub Actions
    participant Pages as GitHub Pages
    participant Site as 博客首页

    User->>Obsidian: 写普通笔记并点击发布
    Obsidian->>Obsidian: 读取笔记并补全文章信息
    Obsidian->>GitHubAPI: 上传 source/_posts/文章.md
    GitHubAPI->>Repo: 写入 main 分支
    Repo->>Actions: 触发自动构建
    Actions->>Pages: 发布静态站点
    Pages->>Site: 首页文章与热力图更新