curl -X POST "http://CONTROL_PLANE_IP:PORT/create_desktop" \
  -H "Content-Type: application/json" \
  -d '{
    "provider_name": "docker",
    "os_type": "Ubuntu",
    "require_a11y_tree": true,
    "require_terminal": false,
    "timeout": 3600
  }'

{
  "status": "accepted",
  "message": "Desktop environment creation started",
  "vm_id": "vm-abc123",
  "task_id": "uuid-string",
  "status_url": "/task_status/uuid-string"
}

{
  "error": "Maximum number of environments reached",
  "details": "Cannot create new environment. Maximum of 16 concurrent environments allowed.",
  "current_count": 16,
  "max_allowed": 16
}