refactor: migrate authentication to NextAuth and clean up related services

app/team/page.tsx

@@ -1,5 +1,5 @@
 import { TeamReviewService } from "@/services/team-review-service";
-import { AuthService } from "@/services/auth-service";
+import { auth } from "@/auth";
 import { redirect } from "next/navigation";
 import { TeamOverview } from "@/components/team-review/team-overview";
 import { SkillMatrix } from "@/components/team-review/skill-matrix";
@@ -13,10 +13,14 @@ export const dynamic = "force-dynamic";
 
 async function TeamReviewPage() {
   try {
-    const { userProfile } = await AuthService.requireAuthenticatedUser();
+    const session = await auth();
+
+    if (!session?.user) {
+      redirect("/login");
+    }
 
     const teamData = await TeamReviewService.getTeamReviewData(
-      userProfile.teamId
+      session.user.teamId
     );
 
     return (