giles 071c2f9a8a R1: per-offering cap is atomic stock — the store-shape of the seat race (TDD) ...

Failing tests first (3 red: no offering pool stream; the sold-EDGE count was the only gate, so a
buy went through after the projection was wiped; the pool-refused buy leaked a showing seat). A
ticket now acquires from TWO atomic pools: the showing seat (physical capacity) AND the offering
allocation (stream 'offering:<off>', cap = its :cap field, ∞ if unset — so uncapped offerings are
unaffected). Both ev/hold! → guarded mint → confirm both / release both; offering-full releases the
seat. This is the co-op's product stock: in the store shape the offering IS the product and its cap
is the only pool, now genuinely atomic. Advisory offering-available? stays for button-hiding only.

blog suite 259/259 (+3).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-03 11:58:24 +00:00

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