fix: update documentation routing and simplify navigation

- Replace VitePress router with window.location for docs index redirect
- Add redirect rules for /docs and /docs/ paths to quick-start guide
- Simplify navigation by removing section anchor links
- Update all CTA buttons to link directly to /docs/ instead of home sections
- Consolidate navigation layout on both desktop and mobile views

docs/index.md

@@ -5,10 +5,9 @@ title: HAPI Documentation
 
 <script setup>
 import { onMounted } from 'vue'
-import { useRouter } from 'vitepress'
+import { withBase } from 'vitepress'
 
 onMounted(() => {
-  const router = useRouter()
-  router.go('/guide/quick-start')
+  window.location.replace(withBase('/guide/quick-start'))
 })
 </script>