- Light and dark theme toggle with localStorage persistence
- Russian and English language support (full i18n)
- Instructions & cheat sheet modal with install/SSH/API/commands
- Green pulsing dot for online, red for offline servers
- Color-coded metrics: green (ok), yellow (warn >70%), red (crit >90%)
- Top bar on server cards: green=online, red=offline
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
