tim plugin, chat bot sync notifications, test fixes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

relay/ui/app.js

@@ -719,12 +719,20 @@ async function loadChatHistory(peer, quiet = false) {
         return;
     }
 
-    container.innerHTML = messages.map(m => `
+    container.innerHTML = messages.map(m => {
+        if (m.bot) {
+            return `
+        <div class="chat-msg bot">
+            <div><i class="ph ph-robot"></i> ${escapeHtml(m.body)}</div>
+            <div class="msg-time">${formatChatTime(m.created_at)}</div>
+        </div>`;
+        }
+        return `
         <div class="chat-msg ${m.mine ? 'mine' : 'theirs'}">
             <div>${escapeHtml(m.body)}</div>
             <div class="msg-time">${formatChatTime(m.created_at)}${m.mine && m.seen ? ' <i class="ph ph-checks"></i>' : ''}</div>
-        </div>
-    `).join('');
+        </div>`;
+    }).join('');
 
     if (wasAtBottom || !quiet) {
         container.scrollTop = container.scrollHeight;