Move docstra dependency to docs and remove any type assertion in next.config.ts.

Author: sudhucodes

docs/next.config.ts

@@ -5,4 +5,4 @@ const nextConfig: NextConfig = {
   /* config options here */
 };
 
-export default withDocstra(nextConfig as any);
+export default withDocstra(nextConfig);

docs/package.json

@@ -10,6 +10,7 @@
   },
   "dependencies": {
     "clsx": "^2.1.1",
+    "docstra": "^1.9.7",
     "lucide-react": "^0.552.0",
     "next": "16.0.10",
     "react": "19.2.0",