Fix params/searchParams types for Next.js app router

next.config.ts

@@ -1,4 +1,5 @@
 import type { NextConfig } from "next";
+import { withPayload } from "@payloadcms/next/withPayload";
 
 const nextConfig: NextConfig = {
   // Force clean dist dir on every build — évite les routes orphelines dans le cache
@@ -8,4 +9,4 @@ const nextConfig: NextConfig = {
   },
 };
 
-export default nextConfig;
+export default withPayload(nextConfig);