Activity feed: gate titles and UTC label

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: sonnet
Assistant-Process: 295952@bnt-lap001
Assistant-Session: e93f64ad-516c-46eb-9666-aad8d300c477

rtut/ui.py

@@ -138,7 +138,7 @@ class App:
             f"<li><span class=note>{e(x['at'][:16].replace('T', ' '))}</span> · <b>{e(x['who'])}</b> {e(x['text'])} "
             f"<span class=note>· {e(x['pack'])}{' · project ' + e(x['project']) if x.get('project') else ''}</span>"
             f"{' · <a href=' + chr(39) + x['link'] + chr(39) + '>open</a>' if x['link'] else ''}</li>" for x in events)
-        return f"<h2>Latest activities</h2><ul class=feed>{rows}</ul>"
+        return f"<h2>Latest activities <span class=note style='font-weight:400;font-size:.85rem'>(times in UTC)</span></h2><ul class=feed>{rows}</ul>"
 
     def user_page(self, msg: str = "") -> bytes:
         u = USER.current()