✨ feat(cdn): Add CDN URL configuration and update related references

apps/user/utils/tutorial.ts

@@ -1,14 +1,15 @@
+import { NEXT_PUBLIC_CDN_URL } from '@/config/constants';
 import matter from 'gray-matter';
 
-const BASE_URL = 'https://cdn.jsdelivr.net/gh/perfect-panel/ppanel-tutorial';
+const BASE_URL = `${NEXT_PUBLIC_CDN_URL}/gh/perfect-panel/ppanel-tutorial`;
 
 async function getVersion() {
   // API rate limit: 60 requests per hour
   const response = await fetch(
-    'https://api.github.com/repos/perfect-panel/ppanel-tutorial/commits',
+    'https://data.jsdelivr.com/v1/stats/packages/gh/perfect-panel/ppanel-tutorial/versions',
   );
   const json = await response.json();
-  return json[0].sha;
+  return json[0].version;
 }
 
 async function getVersionPath() {