Ecto schema for the <prefix>run_events table.
One row per persisted lifecycle event. Inserted by
CouncilEx.Recorder.Ecto in broadcast order; :seq is a
per-run monotonic counter assigned at insert time.
Event filtering
By default :member_token is not persisted — token chunks are
high volume and PubSub-only is the right tradeoff (see
docs/MULTI_REPLICA_RECORDER.md "persist at round/member
boundaries"). Override via the :event_filter option on the
recorder.
Payload shape
:payload is a JSON map. Each event type stores a different shape;
consumers should pattern-match on :type first.