curl --request POST \
  --url https://v1.api.altostrat.io/workflows/validate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Daily Network Health Check",
  "authorization_id": "auth_01H...",
  "nodes": [
    {
      "id": "n1",
      "type": "manual_trigger",
      "position": {
        "x": 150,
        "y": 250
      },
      "data": {
        "componentId": "manual_trigger"
      }
    }
  ],
  "edges": [
    {
      "id": "e1-2",
      "source": "n1",
      "target": "n2",
      "sourceHandle": "true"
    }
  ],
  "description": "<string>",
  "is_active": true,
  "schedule_type": "manual",
  "schedule_value": "0 4 * * *"
}
'

{
  "valid": true,
  "errors": [
    "<string>"
  ]
}