Fix all NextAuth v4 imports across codebase

app/invitations/page.tsx

@@ -1,4 +1,5 @@
-import { auth } from '@/auth'
+import { getServerSession } from 'next-auth'
+import { authOptions } from '@/pages/api/auth/[...nextauth]'
 import { redirect } from 'next/navigation'
 import { getInvitations } from '@/lib/sharing-actions'
 import InvitationCard from '@/components/InvitationCard'
@@ -27,7 +28,7 @@ type Invitation = {
 }
 
 export default async function InvitationsPage() {
-  const session = await auth()
+  const session = await getServerSession(authOptions)
   
   if (!session?.user) {
     redirect('/auth/login')

app/list/[id]/item/[itemId]/edit/page.tsx

@@ -1,7 +1,8 @@
 import { notFound } from 'next/navigation'
 import { getItem } from '@/lib/actions'
 import { canEditList } from '@/lib/permissions'
-import { auth } from '@/auth'
+import { getServerSession } from 'next-auth'
+import { authOptions } from '@/pages/api/auth/[...nextauth]'
 import ItemForm from '@/components/ItemForm'
 import Link from 'next/link'
 import { ArrowLeft } from 'lucide-react'
@@ -16,7 +17,7 @@ interface PageProps {
 }
 
 export default async function EditItemPage({ params }: PageProps) {
-  const session = await auth()
+  const session = await getServerSession(authOptions)
   if (!session?.user?.id) {
     notFound()
   }

app/list/[id]/item/[itemId]/page.tsx

@@ -1,7 +1,8 @@
 import { notFound } from 'next/navigation'
 import { getItem } from '@/lib/actions'
 import { canEditList } from '@/lib/permissions'
-import { auth } from '@/auth'
+import { getServerSession } from 'next-auth'
+import { authOptions } from '@/pages/api/auth/[...nextauth]'
 import ItemDetail from '@/components/ItemDetail'
 import Link from 'next/link'
 import { ArrowLeft, Edit } from 'lucide-react'
@@ -18,7 +19,7 @@ interface PageProps {
 }
 
 export default async function ItemDetailPage({ params }: PageProps) {
-  const session = await auth()
+  const session = await getServerSession(authOptions)
   if (!session?.user?.id) {
     notFound()
   }

app/list/[id]/page.tsx

@@ -1,6 +1,7 @@
 import { getListWithItems } from '@/lib/actions'
 import { getPermission } from '@/lib/permissions'
-import { auth } from '@/auth'
+import { getServerSession } from 'next-auth'
+import { authOptions } from '@/pages/api/auth/[...nextauth]'
 import { notFound } from 'next/navigation'
 import Link from 'next/link'
 import { ArrowLeft } from 'lucide-react'
@@ -10,7 +11,7 @@ import ListDetailView from '@/components/ListDetailView'
 export const dynamic = 'force-dynamic'
 
 export default async function ListDetailPage({ params }: { params: { id: string } }) {
-  const session = await auth()
+  const session = await getServerSession(authOptions)
   if (!session?.user?.id) {
     notFound()
   }

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')

app/profile/page.tsx

@@ -1,5 +1,6 @@
 import { redirect } from 'next/navigation'
-import { auth } from '@/auth'
+import { getServerSession } from 'next-auth'
+import { authOptions } from '@/pages/api/auth/[...nextauth]'
 import { getUserProfile } from '@/lib/auth-actions'
 import ProfileForm from '@/components/ProfileForm'
 import PasswordChangeForm from '@/components/PasswordChangeForm'
@@ -11,7 +12,7 @@ export const metadata = {
 }
 
 export default async function ProfilePage() {
-  const session = await auth()
+  const session = await getServerSession(authOptions)
 
   if (!session?.user?.id) {
     redirect('/auth/login')