davideandClaude Sonnet 5
f21ecbd4ee
open_new_round_if_needed now withholds opening the next round until ROUND_COOLDOWN_SECONDS (default 30) have passed since the previous round's closed_at, returning None in that window instead of a Round. Without this, the next round opened within one scheduler tick (~5s) of the previous payout confirming — not enough time for a player to notice the round they were in actually resolved. Callers updated: the scheduler treats None as "nothing to do this tick", and place_bet raises a "try again shortly" BetError instead of crashing on a None round. Not in the original flowchart — a deliberate UX addition on top of it, documented as such in CLAUDE.md. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>