- Add Typography::tree() style using blue Theme::highlight() color
- Update system, backup, and services widgets to use consistent blue tree styling
- Centralizes tree color management in theme module for easy maintenance
Update all tree symbols (└─, ├─) in system and backup widgets to use
Typography::secondary() style instead of raw text for consistent
text coloring throughout the interface.
- Create NixOS collector for version and active users detection
- Add SystemWidget combining all system information in TODO.md layout
- Replace separate CPU/Memory widgets with unified system display
- Add tree structure for storage with drive temperature/wear info
- Support NixOS version, active users, load averages, memory usage
- Follow exact decimal formatting from specification
- Use config.interval_seconds instead of hardcoded 300 seconds
- Discovery now happens every 10 seconds (configurable) instead of 5 minutes
- Follows configuration-driven architecture requirements
- Restructure get_monitored_services to avoid nested write locks
- Split discover_services into discover_services_internal that returns data
- Update state in separate scope to prevent deadlock
- Fix borrow checker errors with clone() for status cache
