Stop auto-scrolling the game terminal when a new message arrives

Every message append (mainframe broadcasts, lock reveals, the boot
sequence, and responses to your own commands) forced the page to jump
to the bottom. Removed all four window.scrollTo calls so the view
stays put.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

assets/game1.js

@@ -40,7 +40,6 @@ function subscribeToMercure(mercurePublicUrl, topic, myScreen, wonUrl, lostUrl)
           const messageContainer = document.getElementById('message-container');
           if (messageContainer) {
             appendResultMessage(messageContainer, data[1], data[2] || 'mainframe');
-            window.scrollTo(0, document.body.scrollHeight);
             if(stillPlayingSound)
             playSound();
             console.log('[Mercure][game1] sequenceFinished status:', sequenceFinished);
@@ -144,7 +143,6 @@ async function fetchLockReveal(apiEchoUrl, messageContainer) {
     const result = response && response.result;
     if (result && Array.isArray(result.result)) {
       result.result.forEach(text => appendResultMessage(messageContainer, text, result.messageType));
-      window.scrollTo(0, document.body.scrollHeight);
     }
     if (result && result.locked === false) {
       clearLock();
@@ -401,7 +399,6 @@ document.addEventListener('DOMContentLoaded', async () => {
         msgEl.className = 'message ' + extraClass;
         msgEl.textContent = msg[0];
         messageContainer.appendChild(msgEl);
-        window.scrollTo(0, document.body.scrollHeight);
 
         playSound();
 
@@ -452,7 +449,6 @@ document.addEventListener('DOMContentLoaded', async () => {
                   console.log('[API][game1] message sent →', response);
                   if (response && response.result && Array.isArray(response.result.result)) {
                     response.result.result.forEach(text => appendResultMessage(messageContainer, text, response.result.messageType));
-                    window.scrollTo(0, document.body.scrollHeight);
                   }
                   if (response && response.result) {
                     if (response.result.gameWon === true && wonUrl) {