curl --request DELETE \
  --url https://api.equos.ai/v3/brains/{id} \
  --header 'x-api-key: <api-key>'

{
  "id": "<string>",
  "organizationId": "<string>",
  "instructions": "<string>",
  "greetingMessage": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z",
  "client": "<string>"
}