Every other crate has one and Cargo.toml already named it. Follows the
sibling shape: what it is, why it is a crate rather than more config, the
invariant that is easy to break (issuer_account must be absent, and
Token::new_user reintroduces it), and what the tests do NOT cover - the
introspection endpoint under test is a stub, so nothing here says anything
about the real authelia integration.
