Add custom font styles and theme enhancements

- Created a new CSS file for font imports and defined font families for base, mono, strong, em, and h1 elements.
- Added a new JavaScript file to extend the default VitePress theme, incorporating a custom layout and a Vue component for enhanced functionality.
- Integrated Mermaid diagram support and included the necessary styles for it.

.claude/commands/oki/publish.md

@@ -0,0 +1,22 @@
+---
+name: "OKI: Publish"
+description: 本地知识库查看、发布
+category: Knowledge
+tags: [knowledge, wiki, publish]
+---
+
+本地知识库查看、发布
+
+## 指令参数
+
+- `--preview`、`-p`变为预览（默认发布）
+
+## 发布步骤
+
+1. 执行`cd openwiki && pnpm build`
+2. 若报错，修复错误
+3. 执行`bash scripts/deploy.sh`
+
+## 预览步骤
+
+1. 执行`cd openwiki && pnpm dev`