Fix all NextAuth v4 imports across codebase

app/page.tsx

@@ -4,13 +4,14 @@ import NewListButton from '@/components/NewListButton'
 import GlobalSearch from '@/components/GlobalSearch'
 import EmptyState from '@/components/EmptyState'
 import Link from 'next/link'
-import { auth } from '@/auth'
+import { getServerSession } from 'next-auth'
+import { authOptions } from '@/pages/api/auth/[...nextauth]'
 import { redirect } from 'next/navigation'
 
 export const dynamic = 'force-dynamic'
 
 export default async function Home() {
-  const session = await auth()
+  const session = await getServerSession(authOptions)
   
   if (!session?.user) {
     redirect('/auth/login')