1.55.0

Added

• on_config hook on AbstractBase that subclasses can override to react to SIGHUP reload signals (chains to the existing "config" trigger via super)
• ConsulProxyServer.on_config override that schedules an extra _consul_tick(timeout=0) on SIGHUP, allowing operators to force a Consul service refresh without waiting for the next poll cycle

Changed

• bind_config SIGHUP handler now defers on_config to the main event loop via delay(immediately=True) instead of running it synchronously in the signal handler context, so subclass overrides don't have to worry about signal-handler reentrancy