- Group polls with option/rollcall modes, edit by creator, auto-settle
- Multimedia memories with upload, preview, inline video playback
- In-app notifications for poll/team/group events
- Points system and group stats dashboard
- Group detail tabs with icons (activity/polls/memories/stats)
- Fix: nginx file upload size, static cache blocking API, timezone, auto-cancel
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
congsh