The signed-in user, as every backend reports it.
id: the backend's id, stable for the account's life.username: what the person signs in with.display_name: how the app shows them.roles: the roles the app's authorization reads, as strings. The library only checks membership (Macaw.Auth.Plug.require_role/2); what a role allows is the app's.source: where the identity came from ("local", an LDAP source's name, an OAuth provider).disabled: a disabled user has no live session.second_factor::none,:enrolled, or:required(policy demands one the user hasn't enrolled).must_change_password: the next step is a password change.extra: the backend's or app's own fields, untouched by the library.