refactor: revew all design of services, clients, deadcode, ...

app/admin/manage/users/page.tsx

@@ -1,26 +1,12 @@
-import { redirect } from "next/navigation";
-import { isUserAuthenticated } from "@/lib/server-auth";
 import { AdminService } from "@/services/admin-service";
 import { UsersManagementPage } from "@/components/admin/users";
 
 export default async function UsersPage() {
-  // Vérifier l'authentification
-  const isAuthenticated = await isUserAuthenticated();
-
-  // Si pas de cookie d'authentification, rediriger vers login
-  if (!isAuthenticated) {
-    redirect("/login");
-  }
-
   // Charger les données côté serveur
   try {
     const adminData = await AdminService.getAdminData();
 
-    return (
-      <UsersManagementPage
-        teams={adminData.teams}
-      />
-    );
+    return <UsersManagementPage teams={adminData.teams} />;
   } catch (error) {
     console.error("Failed to load admin data:", error);
     return (