Only standard-rules games now count toward leaderboard stats. Games
with any house rule variant are marked "Unranked" in the active rules
bar, and a notice appears in the lobby when house rules are selected.
Also fixes game_logger duplicate options dicts (now uses dataclasses.asdict,
capturing all options including previously missing ones) and refactors
duplicated achievement-checking logic into shared helpers.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
