* fix: group chat UI background colors and replace console.log in context-engine
- Set message list background to $bg-card to match single chat
- Set status-bar background to transparent
- Replace all console.log/warn with logger in context-engine compressor
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix: group chat mobile UX improvements
- Add backdrop overlay for mobile sidebar with tap-to-close
- Auto-collapse sidebar on room select in mobile
- Move timestamp below message bubble
- Widen msg-body max-width to 85% to match single chat
- Add left padding to chat-header to avoid hamburger overlap
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
