Following the Getting Started guide, https://fusionauth.io/docs/get-started, I can startup the local FA server via docker and confirm it's running by logging in. I run the Node.js app and it starts up fine too, but hitting login gives me:

{
  "error" : "invalid_client",
  "error_description" : "client_id: e9fdb985-9173-4e01-9d73-ac2d60d1dc8e is not valid.",
  "error_reason" : "invalid_client_id"
}

That seems to imply the default code isn't right? I can see the value set in index.mts just fine, but I don't see it as an application in the FA admin (assuming I'm looking at the right place).

Is there a step I missed?