Fix GitHub template authentication issue

- Add fallback support for VITE_GITHUB_ACCESS_TOKEN environment variable
- Fix 403 Forbidden error when fetching GitHub templates
- Improve authentication compatibility for different token naming conventions
- Ensure all GitHub-based templates work properly

app/routes/api.github-template.ts

@@ -211,7 +211,8 @@ export async function loader({ request, context }: { request: Request; context:
 
   try {
     // Access environment variables from Cloudflare context or process.env
-    const githubToken = context?.cloudflare?.env?.GITHUB_TOKEN || process.env.GITHUB_TOKEN;
+    const githubToken =
+      context?.cloudflare?.env?.GITHUB_TOKEN || process.env.GITHUB_TOKEN || process.env.VITE_GITHUB_ACCESS_TOKEN;
 
     let fileList;