Fetch additional data before login

[mrleblanc101]

Describe the feature

Hi,
I would like to fetch additional data before login.
So, we have some information about the user in Keycloak, but we also have most of the user profile saved in our own database.
I would like to fetch the data in our own database after login, before redirecting to the authenticated page.
I'm not sure if this is currently supported, or if I should be looking in the @authjs/core documentation, but I couldn't find a way currently.
nuxt-oidc-auth expose a hook to do this.

Additional information

• Would you be willing to help implement this feature?