curl --request PUT \
  --url https://api.agentixx.io/api/workflows/{id}/draft \
  --header 'Content-Type: application/json' \
  --header 'x-tenant-id: <api-key>' \
  --cookie better-auth.session_token= \
  --data '
{
  "draftGraph": {
    "nodes": [
      {
        "id": "trigger_1",
        "type": "trigger.inbound_message",
        "position": {
          "x": 400,
          "y": 100
        }
      }
    ],
    "edges": [],
    "entry": "trigger_1"
  }
}
'

{
  "ok": true,
  "updatedAt": "<string>"
}