feat: invitation deletion

app/admin/guests/page.tsx

@@ -1,6 +1,7 @@
 import Link from "next/link"
 
 import { CopyInviteButton } from "@/components/admin/copy-invite-button"
+import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert"
 import { Badge } from "@/components/ui/badge"
 import { Button } from "@/components/ui/button"
 import {
@@ -33,7 +34,12 @@ function getStatusVariant(status: string): "default" | "secondary" | "outline" {
   return "outline"
 }
 
-export default async function GuestsPage() {
+export default async function GuestsPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ deleted?: string }>
+}) {
+  const { deleted } = await searchParams
   const invitations = await listInvitations()
 
   return (
@@ -50,6 +56,15 @@ export default async function GuestsPage() {
         </Button>
       </div>
 
+      {deleted ? (
+        <Alert>
+          <AlertTitle>Guest group deleted</AlertTitle>
+          <AlertDescription>
+            The invitation and its associated guest information were permanently removed.
+          </AlertDescription>
+        </Alert>
+      ) : null}
+
       <Card>
         <CardHeader>
           <CardTitle>Invitation list</CardTitle>