The multiplexing default gateway now serves default + every live named profile
under profiles/. profiles_to_serve(multiplex=True) is a pure directory read
(tombstoned profiles skipped, never mkdir); every reader — gateway served set,
/p/<profile>/ prefixes for api_server + webhook, the named-profile standalone
guard, the Desktop cron ticker (its #108428 standdown for a profile owned by a
running gateway is unchanged) — drops the allowlist parameter.
Config v43 migration deletes the key from user config.yaml; DEFAULT_CONFIG,
GatewayConfig and the top-level yaml bridge no longer carry it.
BREAKING: anyone who set an allowlist now has their excluded profiles served.
Archive or delete a profile you do not want served (Teknium approved).