Campaigns steps delete

{
  "success": true,
  "message": "Step deleted successfully",
  "campaign": {
    "id": 123,
    "name": "My Campaign",
    "status": "DRAFT",
    "timezone": "Europe/Amsterdam",
    "language": "en",
    "email_max_messages": 40,
    "linkedin_max_messages": 100,
    "linkedin_max_connections": 50,
    "sending_window": {},
    "created_at": "2024-01-15T10:30:00Z",
    "updated_at": "2024-01-15T11:45:00Z"
  }
}

curl -X DELETE -H "X-API-Key: <key>" \
  "https://api.seleqt.ai/api/v1/public/campaigns/123/steps/456/"

{
  "success": false,
  "error": "Cannot delete steps from an active campaign"
}

{
  "success": false,
  "error": "Campaign not found"
}