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.

hooks/use-user-context.tsx

@@ -1,6 +1,13 @@
 "use client";
 
-import { createContext, useContext, useState, ReactNode } from "react";
+import {
+  createContext,
+  useContext,
+  useState,
+  useEffect,
+  ReactNode,
+} from "react";
+import { authClient } from "@/clients";
 
 interface UserInfo {
   firstName: string;
@@ -11,15 +18,41 @@ interface UserInfo {
 interface UserContextType {
   userInfo: UserInfo | null;
   setUserInfo: (userInfo: UserInfo | null) => void;
+  loading: boolean;
 }
 
 const UserContext = createContext<UserContextType | undefined>(undefined);
 
 export function UserProvider({ children }: { children: ReactNode }) {
   const [userInfo, setUserInfo] = useState<UserInfo | null>(null);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    const fetchUserInfo = async () => {
+      try {
+        // Récupérer les informations utilisateur depuis l'API
+        const user = await authClient.getCurrentUser();
+        if (user) {
+          setUserInfo({
+            firstName: user.firstName,
+            lastName: user.lastName,
+            teamName: user.teamName || "Équipe non définie",
+          });
+        }
+      } catch (error) {
+        console.error("Failed to fetch user info:", error);
+        // En cas d'erreur, on considère que l'utilisateur n'est pas connecté
+        setUserInfo(null);
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    fetchUserInfo();
+  }, []);
 
   return (
-    <UserContext.Provider value={{ userInfo, setUserInfo }}>
+    <UserContext.Provider value={{ userInfo, setUserInfo, loading }}>
       {children}
     </UserContext.Provider>
   );