v0.7.0 — four game types, a lobby you can read and leave, and a multiplayer game that makes a sound

The multiplayer set-up, the lobby, the start of a game, and four signals a remote client had never
been sent. Reasoning, the preset table and what was verified how: CHANGELOG.md.

- Co-op, Competitive, Cutthroat, Solitaire and Custom, on both screens, from one shared block —
  they had drifted, and each was missing a question the other asked.
- A player reads the whole rule set before taking a seat, may leave a lobby or a running game, and
  keeps a seat across a reload. The host may clear a chair. The browser remembers every game it is
  in, not just the last one.
- The start of a game is drawn: a handoff beat, an announcement, the code and type in the header.
- Sound, the timetable flash, announcements and the just-drawn badge now reach a remote client;
  justDrawn goes to the seat that drew it and nobody else.
- Played on StartOS, which found the rest: an Extra belongs to the player who played it, the board
  never named the Superintendent, bot seats were reported as absent players, and rule section
  numbers are out of every string a player reads.

Also carries the previous session's Heavy Grade documentation work — asked again, answer unchanged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016JczK5i33ZNSf2PtzZqdhS

src/web/panels.ts

@@ -34,7 +34,7 @@ export function handHtml(f: Frame, canPlay: (boolean | null)[] = []): string {
   // §6.2 (Gitea#6) — say so on the card itself. A player who cannot discard a train needs to read
   // that on the train, not deduce it from a button that is not there.
   const held = 'You may hold this for as many Stages and Days as you like — but a train card is ' +
-    'never discarded (§6.2). The only way it leaves your hand is onto the timetable.';
+    'never discarded. The only way it leaves your hand is onto the timetable.';
   return f.hand.length
     ? f.hand
         .map((h, i) => {
@@ -291,7 +291,7 @@ export function facilitiesHtml(f: Frame): string {
               : '') +
             `<div class="fstat ${x.jammed ? 'bad' : x.canFinish ? 'good' : 'idle'}" data-tip="${
               x.jammed
-                ? 'A load is sitting on MEN|AT|WORK with no spotted car to receive it. That locks the industry track, which blocks the very car that would clear it (§9.3).'
+                ? 'A load is sitting on MEN|AT|WORK with no spotted car to receive it. That locks the industry track, which blocks the very car that would clear it.'
                 : x.canFinish
                   ? 'A matching empty car is spotted on this industry\'s track, so a load worked here can come off onto it.'
                   : 'No matching car is spotted. Starting a load here would park it on WORK and jam the facility.'