Enroll Verified Authenticator

curl --request POST \
  --url https://api.authsignal.com/v1/users/{userId}/authenticators \
  --header 'Content-Type: application/json' \
  --data '{
  "verificationMethod": "SMS",
  "phoneNumber": "+123456789012"
}'

{
  "authenticator": {
    "userAuthenticatorId": "4efd2d0d-3278-4e03-8143-d9a0850bebc0",
    "verificationMethod": "PASSKEY",
    "username": "jane.smith@authsignal.com",
    "displayName": "Jane Smith",
    "createdAt": "2024-05-13T04:59:02.640Z",
    "lastVerifiedAt": "2024-07-13T02:43:37.640Z",
    "verifiedAt": "2024-05-13T04:59:17.640Z",
    "webauthnCredential": {
      "credentialId": "71273a99-4a7b-47d4-82ab-9ea72b8f0a72",
      "deviceId": "d5a13d2d-8c34-4c90-938b-d8c6e3a88c5d",
      "name": "iCloud Keychain",
      "aaguid": "fbfc3007-154e-4ecc-8c0b-6e020557d7bd",
      "aaguidMapping": {
        "name": "iCloud Keychain",
        "svgIconDark": "data:image/svg+xml;base64...",
        "svgIconLight": "data:image/svg+xml;base64..."
      },
      "credentialBackedUp": true,
      "credentialDeviceType": "multiDevice",
      "authenticatorAttachment": "platform"
    }
  },
  "recoveryCodes": [
    "<string>"
  ]
}