refactor: migrate authentication to NextAuth and clean up related services

app/api/evaluations/skills/route.ts

@@ -1,11 +1,24 @@
 import { NextRequest, NextResponse } from "next/server";
-import { AuthService } from "@/services/auth-service";
+import { auth } from "@/auth";
 import { evaluationService } from "@/services/evaluation-service";
 
 export async function PUT(request: NextRequest) {
   try {
-    // Récupérer l'utilisateur depuis le cookie (maintenant un UUID)
-    const { userProfile } = await AuthService.requireAuthenticatedUser();
+    // Récupérer l'utilisateur depuis la session NextAuth
+    const session = await auth();
+    
+    if (!session?.user) {
+      return NextResponse.json(
+        { error: "Non authentifié" },
+        { status: 401 }
+      );
+    }
+
+    const userProfile = {
+      firstName: session.user.firstName,
+      lastName: session.user.lastName,
+      teamId: session.user.teamId,
+    };
 
     const body = await request.json();
     const { category, skillId, level, canMentor, wantsToLearn, action } = body;