Null in allowedOrigins in jwt causes 500 error

[MarekProkopec]

When using JWT, if you pass null to allowedOrigins, you get error

{
    "data": null,
    "error": {
        "statusCode": 500,
        "message": "Internal server error. Contact support@vapi.ai for help."
    }
}

Example:

{
  "orgId": "xxxxxxxxxxxx",
  "token": {
    "tag": "public",
    "restrictions": {
      "enabled": true,
      "allowedOrigins": [
        null
      ],
      "allowTransientAssistant": false
    }
  },
  "iat": xxx,
  "exp": xxx
}

Of course this should not happen, since it does not make sense, but it would be nice to get some sensible error message, or handling this somehow else, since it just caused us a bit head scratching, because we had misconfigured .env variables.