Per-tournament time zone for all clock times (Central by default)

Release 0.6.1.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01MB7nCCAscYsb3zzkT6LHZi

server/public/board.js

@@ -14,7 +14,8 @@
   const wdClass = t => t && withdrawnIds().has(t.id) ? 'wd' : '';
   const forfeitTag = m => m.forfeitBy ? `<span class="btag ff">Forfeit · ${esc(state.withdrawn.concat(state.teams).find(t => t.id === m.forfeitBy)?.name ?? '')}</span>` : '';
   const fromName = (t, from) => t ? name(t) : from ? `<span class="tbd">${from.loser ? 'loser' : 'winner'} on Court ${from.court}</span>` : '<span class="tbd">TBD</span>';
-  const clock = ms => new Date(ms).toLocaleTimeString([], { hour: 'numeric', minute: '2-digit' });
+  // clock times are shown in the tournament's time zone, not the viewer's device zone
+  const clock = ms => { try { return new Date(ms).toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit', timeZone: state.timezone || undefined }); } catch { return new Date(ms).toLocaleTimeString([], { hour: 'numeric', minute: '2-digit' }); } };
   const isMine = m => myTeam && (m.a?.id === myTeam || m.b?.id === myTeam);
   const phaseLabel = { checkin: 'Registration open', closed: 'Registration closed', live: 'Live', final: 'Final' };
   const score = m => m.status === 'final' ? m.sets.map(s => `${s[0]}–${s[1]}`).join(', ')