A second rule set chosen at setup (CatanRuleSet): commodities, knights, walls,
barbarians and the event die, city improvements and metropolises, and the
54 progress cards. Everything lives behind CatanState.ck, so the base game's
state and rules are untouched. Multi-seat decisions run through one chore queue.
Also wraps three multi-part log lines so each event is one entry.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_016eTor2tpxKb4dXbd8RqnvZ