Option to disable [auth][warn][experimental-webauthn] server messages

[wowtah]

Goals

1. to have a way of disabling these messages from my server log:

2025-01-30T20:55:36.636933180Z [auth][warn][experimental-webauthn] Read more: https://warnings.authjs.dev#experimental-webauthn
2025-01-30T20:55:41.732816067Z [auth][warn][experimental-webauthn] Read more: https://warnings.authjs.dev#experimental-webauthn
2025-01-30T20:55:46.837270155Z [auth][warn][experimental-webauthn] Read more: https://warnings.authjs.dev#experimental-webauthn
2025-01-30T20:55:51.944829590Z [auth][warn][experimental-webauthn] Read more: https://warnings.authjs.dev#experimental-webauthn
2025-01-30T20:55:57.050446837Z [auth][warn][experimental-webauthn] Read more: https://warnings.authjs.dev#experimental-webauthn
2025-01-30T20:56:02.174320350Z [auth][warn][experimental-webauthn] Read more: https://warnings.authjs.dev#experimental-webauthn

I know its an eperimental feature, but no need to remind me in the server logs every 5 seconds 😅

1a. if this option already exists, I read a lot of documentation but could not find it. So then the goal would be to write about it in the section about experimental-webauthn.

2. If you do output messages with links, please make sure there is something to read on the topic on the link. Right now that page has no content about experimental-webauthn.

Background

Using
"next-auth": "^5.0.0-beta.25",

Proposal

Introduce some .env var, or flag on

experimental: { enableWebAuthn: true },

to disable these warnings.

e.g.

experimental: { enableWebAuthn: true, logServerWarnings: false },