hub.py mirrors the two reins' hub.py under author: agt-glas-harness.
run_task_through_rein gains report_to_hub (default True), posting one
gateway_run progress event from a finally block -- fires on both
success and failure, giving the gateway an audit trail independent of
whatever the rein itself reports. cli.py gained a matching --no-hub
flag.
Live-verified: ran a real task through ReinOpenWeights with hub
reporting enabled, confirmed the gateway_run event landed with correct
detail and a real commit sha. 4 new tests, 23/23 passing.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
