- Added timestamp field to Message struct in Rust backend - Timestamps automatically captured on message creation - Smart relative time formatting (Just now, Xm ago, time, date) - Timestamps display below message content with subtle styling - Fixed avatar squishing issue with flex-shrink: 0 - Backward compatible with existing messages via serde(default) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>