e562077e4c
Add 5 tests for JWT allowed_connection_types enforcement which the authenticator does not yet implement. Two tests (reject MQTT-only for STANDARD context, reject unknown-only types) fail on assertions because JwtAuthenticator currently ignores the claim. Three tests (allow STANDARD, allow with unknown mixed in, case-insensitive match) pass trivially since the field is not checked. Also adds ConnectionType property to ClientAuthContext (defaults to "STANDARD") so the tests compile.