curl --request PATCH \
  --url https://api.agentixx.io/api/contacts/{id} \
  --header 'Content-Type: application/json' \
  --header 'x-tenant-id: <api-key>' \
  --cookie better-auth.session_token= \
  --data '
{
  "displayName": "Jane Doe",
  "tags": [
    "vip",
    "active"
  ]
}
'

{
  "ok": true
}