An access or refresh token (stored hashed). family_id groups the tokens born from one authorization code.
family_id
@type t() :: %Sake.Auth.TokenRecord{ client_id: term(), expires_at: term(), family_id: term(), hash: term(), id: term(), inserted_at: term(), kind: term(), resource: term(), revoked_at: term(), scopes: term(), subject_id: term(), used_at: term() }