fix(auth): redirect to appUrl after invite callback

origin lacks /ims basePath; use NEXT_PUBLIC_APP_URL instead.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BzvzV91UqHZKM9P58qtvrA

app/(protected)/hse/incidents/[id]/capa/new/page.tsx

@@ -3,6 +3,7 @@ export const dynamic = 'force-dynamic'
 import { notFound, redirect } from 'next/navigation'
 import Link from 'next/link'
 import { createClient } from '@/lib/supabase/server'
+import { createAdminClient } from '@/lib/supabase/admin'
 import { CapaForm } from '@/components/capa/capa-form'
 
 interface Props {
@@ -23,7 +24,8 @@ export default async function NewCapaPage({ params }: Props) {
     .from('incidents').select('id, reference_no, status').eq('id', id).single()
   if (!incident) notFound()
 
-  const { data: users } = await supabase
+  const admin = createAdminClient()
+  const { data: users } = await admin
     .from('users')
     .select('id, name, department')
     .eq('role', 'capa_owner')