feat: initialize opencode project with Astro and Starlight

- Add package.json for project configuration and dependencies
- Create content configuration for Starlight documentation
- Add example guide and reference markdown files
- Create index page for documentation with navigation and next steps
- Set up TypeScript configuration for the project

web/openclaw/docs/index.md

@@ -0,0 +1,25 @@
+---
+# https://vitepress.dev/reference/default-theme-home-page
+layout: home
+
+hero:
+  name: "Openclaw In CNB"
+  text: "CNB怎么使用openclaw"
+  tagline: My great project tagline
+  actions:
+    - theme: brand
+      text: Markdown Examples
+      link: /markdown-examples
+    - theme: alt
+      text: API Examples
+      link: /api-examples
+
+features:
+  - title: Feature A
+    details: Lorem ipsum dolor sit amet, consectetur adipiscing elit
+  - title: Feature B
+    details: Lorem ipsum dolor sit amet, consectetur adipiscing elit
+  - title: Feature C
+    details: Lorem ipsum dolor sit amet, consectetur adipiscing elit
+---
+