feat: enhance user authentication and profile retrieval

- Updated GET handler in auth route to fetch user UUID from cookie using AuthService.
- Improved error handling for unauthenticated and non-existent users.
- Added team name retrieval for the user profile, with fallback handling.
- Refactored AuthClient to return detailed user information including team details.
- Enhanced navigation component to use a dropdown menu for user actions, improving UI/UX.
- Implemented loading state in UserContext to manage user info fetching.

app/account/page.tsx

@@ -0,0 +1,36 @@
+import { redirect } from "next/navigation";
+import { AuthService, userService, TeamsService } from "@/services";
+import { AccountForm } from "@/components/account/account-form";
+
+export default async function AccountPage() {
+  try {
+    // Vérifier si l'utilisateur est connecté
+    const userUuid = await AuthService.getUserUuidFromCookie();
+
+    if (!userUuid) {
+      redirect("/login");
+    }
+
+    // Récupérer le profil utilisateur
+    const userProfile = await userService.getUserByUuid(userUuid);
+
+    if (!userProfile) {
+      redirect("/login");
+    }
+
+    // Charger les équipes pour la sélection
+    const teams = await TeamsService.getTeams();
+
+    return (
+      <div className="container mx-auto px-4 py-8">
+        <div className="max-w-2xl mx-auto">
+          <h1 className="text-3xl font-bold mb-8">Mon compte</h1>
+          <AccountForm initialProfile={userProfile} teams={teams} />
+        </div>
+      </div>
+    );
+  } catch (error) {
+    console.error("Error loading account page:", error);
+    redirect("/login");
+  }
+}