feat(game): add configurable rounds per room

app/page.tsx

@@ -12,6 +12,8 @@ export default function WikiRush() {
   const [screen, setScreen] = useState<Screen>("home");
   const [playerName, setPlayerName] = useState("");
   const [joinCode, setJoinCode] = useState("");
+  const [maxPlayers, setMaxPlayers] = useState(16);
+  const [totalRounds, setTotalRounds] = useState(3);
   const [error, setError] = useState<string | null>(null);
   const [loading, setLoading] = useState(false);
   const [showAuth, setShowAuth] = useState(false);
@@ -20,7 +22,7 @@ export default function WikiRush() {
   const multi = useMultiGame();
 
   const { session } = useGameEffects({ solo, multi, screen, setScreen, setPlayerName });
-  const handlers = useGameHandlers({ solo, multi, playerName, joinCode, setScreen, setError, setLoading });
+  const handlers = useGameHandlers({ solo, multi, playerName, joinCode, maxPlayers, totalRounds, setScreen, setError, setLoading });
 
   return (
     <ScreenRouter
@@ -28,6 +30,8 @@ export default function WikiRush() {
       solo={solo} multi={multi} handlers={handlers}
       playerName={playerName} setPlayerName={setPlayerName}
       joinCode={joinCode} setJoinCode={setJoinCode}
+      maxPlayers={maxPlayers} setMaxPlayers={setMaxPlayers}
+      totalRounds={totalRounds} setTotalRounds={setTotalRounds}
       error={error} setError={setError} loading={loading}
       showAuth={showAuth} setShowAuth={setShowAuth}
     />