curl --request POST \
  --url https://api.gravixlayer.com/v1/agents/sandboxes/{sandbox_id}/code/run \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "<string>",
  "timeout": 30
}
'

{
  "logs": {
    "stdout": "<string>",
    "stderr": "<string>"
  },
  "error": "<string>",
  "execution_time_ms": 123
}