fix: preserve log message order when replaying history on connect

Send history messages newest-first from the server, tagged with
history=True so the client appends rather than prepends them, avoiding
reverse-chronological display on initial load.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

hbd/server/templates/live.html

@@ -540,7 +540,7 @@
             if (msg.service) html += '<span class="log-service">' + msg.service + '</span>';
             html += '<span class="log-msg">' + msg.message + '</span>';
             html += '</div>';
-            msgs.insertAdjacentHTML("afterbegin", html);
+            msgs.insertAdjacentHTML(state.history ? "beforeend" : "afterbegin", html);
             applyLogFilters();
           }
           cnt++;