Create a new prompt

curl --request POST \
  --url https://api.lunary.ai/v1/datasets/prompts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "datasetId": "<string>",
  "messages": "<string>",
  "idealOutput": "<string>",
  "withPromptVariation": true
}'

{
  "id": "<string>",
  "datasetId": "<string>",
  "messages": [
    {
      "role": "<string>",
      "content": "<string>"
    }
  ]
}