Layout & engine borrowed from Shelem: waiting-room menu with seat swap and
force-start, game menu with bar-to-bottom, escalating turn reminder, three
hand modes defaulting to fan on touch, card-count badges instead of card
backs, leave buttons inside phase overlays, version footer with tap-to-update.
Seats now run clockwise from the viewer (left = +1, across = +2, right = +3)
so play flows anti-clockwise on screen as the server advances it; the pass
exchange was flipped to match, otherwise "pass left" delivered to the right.
Game history: finished games are saved with a per-hand breakdown, readable
from the profile and shown on the end-of-hand and end-of-game screens.
Card flashing: the service worker precaches all 52 faces, each face is decoded
once into a template image, and the renderers reconcile against existing DOM
instead of rebuilding it, so card nodes and their images survive a re-render.
Card-count integrity: a seat can no longer put two cards into one trick, and
the server snapshots each trick start and rewinds to the last sound state if
the four hands ever drift apart.
Leaderboard: ranked by win rate with a 5-game minimum; below-threshold players
are listed unranked. Moon shots are now recorded instead of always zero, and
stat reads no longer create and persist a row per user on every request.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
goyban