Booking stream carries :booking/:cancel events; live roster is the folded
replay so cancelling frees a seat and capacity reopens. ev/cancel! (retrying
append-expect), no-op on unbooked, cancelled actor may re-book. Capacity count
is folded roster size. 110/110 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
booking.sx: per-occurrence append-only stream, roster = replay. Booking
decided against an observed (roster, last-seq) snapshot, committed via
persist/append-expect — atomic check+append, no overbooking, no lock.
Explicit last-seat race test: two bookers, one booked, one conflict, roster
capped. Idempotent per actor. 97/97 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ev-next-free finds the earliest free slot >= after for a duration within a
horizon, probing 'after' + busy-interval ends via the busy_in rule (ev-free?).
Finds gaps, skips too-short gaps, half-open at edges. 59/59 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>