Get backup codes for multi-factor authentication

curl --request POST \
  --url https://api.fluxer.app/v1/users/@me/mfa/backup-codes \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "regenerate": true,
  "password": "<string>",
  "mfa_method": "totp",
  "mfa_code": "<string>",
  "webauthn_response": {},
  "webauthn_challenge": "<string>"
}
'

{
  "backup_codes": [
    {
      "code": "<string>",
      "consumed": true
    }
  ]
}