Implements PROTOCOL.md's private-room flow: room:create/room:join
with a collision-checked numeric code, up to a 5-match repeating
series per room via game/session.js, random-theme selection that
excludes the previous match's theme, and room:closed for matchLimit
or quit (rooms never touch matchmaking's ban store). themeMode:
'chosen' gets a narrow resolveChosenTheme() stand-in pending #7's
real theme-voting flow.
Also adds a minimal opponentName lookup to registry.js
(registerSocket's new optional name arg + getPlayerName) since
room:joined needs it, mirroring the same addition landing on #5's
branch.
Registers queue:join/queue:leave handlers that FIFO-pair waiting players,
randomly assign timeMode (1 or 2, uniform) and theme via themeIds.js, and
hand off to game/session.js's createSession. Tracks a 2-minute
matchmaking-only quit ban (in-memory, resets on restart) via onEnd's
'quit' reason, scoped to sessions this module produced. Exports
isBanned() and registerMatchmakingHandlers(), wired into index.js at
boot.
Also extends ws/registry.js with a playerId -> display name store
(registerSocket's new optional third arg, getPlayerName()) so
match:found.opponentName (and future room:joined.opponentName) can be
populated; connectionHandler.js's identify handler now passes name
through.
Replace the single pick-a-theme-and-start intro modal with a three-section
menu (Solo/Private/Matchmaking). Solo keeps the existing gameplay reachable
via a direct Play button; Private (Enter Code/Create Room) and Matchmaking
(Find Match) are stubbed with console.log no-ops pending tickets #17/#15/#14.
main.ts gains a small showView(name) helper that toggles .hidden across the
menu/result overlay screens, keeping it a thin composition root.
Splits the single game.js god-class into layered modules (types, data,
engine, game, preview, ui, main) and converts every source file to
TypeScript, built and served by Vite instead of a plain static server.
No behavior change: verified against the previous JS version via a full
play-through (theme select, preview countdown, coloring, reveal) in a
real browser.
