pub const ROLLUP_GRACE_MS: i64 = 60_000;Expand description
Completion GRACE: a fine window is rolled only once its end is at
least this far in the past — headroom for the writer’s flush tick
and batch latency, so a straggler record still lands in the window
it belongs to. Records later than the grace are documented as
rollup-lost (they remain in raw until raw retention expires).