fix: serve uploaded images via /api/media/[name] to avoid Next.js static 404

src/actions/admin-media.ts

@@ -62,5 +62,5 @@ export async function uploadMediaAndReturn(formData: FormData): Promise<string>
 
   revalidatePath("/api/media");
   revalidatePath("/admin/media");
-  return `/assets/images/media/${name}`;
+  return `/api/media/${name}`;
 }