- Add swipe-to-reveal in mobile chat list (right=pin, left=mute/leave)
- Pin/mute API endpoints with is_pinned DB column migration
- Show pin icon on pinned chats, mute icon on muted chats
- Pinned chats sort to top of list
- Fix push notifications sent to message sender (filter uid)
- Remove debug console.log from WS handler
- Fix chat rename not updating in sidebar without reload
- Fix emoji picker z-index and positioning on mobile (z-50, bottom-full)
- Add last seen time in chat header for private chats
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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