refactor: update authentication flow and cookie management

- Changed COOKIE_NAME from "peakSkills_userId" to "session_token" for better clarity.
- Updated AuthClient to handle login and registration with new data structures.
- Enhanced AuthWrapper to manage user sessions and display appropriate messages.
- Added error handling in LoginForm and RegisterForm for better user feedback.
- Refactored user service methods to streamline user creation and verification processes.

app/login/page.tsx

@@ -1,4 +1,3 @@
-import { redirect } from "next/navigation";
 import { TeamsService, userService } from "@/services";
 import { AuthService } from "@/services";
 import { LoginLayout, AuthWrapper, LoginLoading } from "@/components/login";
@@ -11,20 +10,17 @@ export default async function LoginPage() {
     // Vérifier si l'utilisateur est déjà connecté
     const userUuid = await AuthService.getUserUuidFromCookie();
 
+    let userProfile = null;
+
     if (userUuid) {
       // Si l'utilisateur est connecté, récupérer son profil côté serveur
-      const userProfile = await userService.getUserByUuid(userUuid);
-
-      if (userProfile) {
-        // Rediriger vers l'accueil si déjà connecté
-        redirect("/");
-      }
+      userProfile = await userService.getUserByUuid(userUuid);
     }
 
     // Si l'utilisateur n'est pas connecté, afficher le formulaire d'auth
     return (
       <LoginLayout>
-        <AuthWrapper teams={teams} />
+        <AuthWrapper teams={teams} initialUser={userProfile} />
       </LoginLayout>
     );
   } catch (error) {