Persistent top bar showing real-time robot health indicators:
- Battery percentage and voltage (color-coded: green >60%, amber 30-60%, red <30%)
- WiFi signal strength (RSSI dBm with quality assessment)
- Motor status and current draw in Amperes
- Emergency state indicator (red highlight when active)
- System uptime in hours and minutes
- Current operational mode (idle/nav/social/docking)
- Connection status indicator
Component subscribes to relevant ROS topics and displays in compact
flex layout matching dashboard dark theme.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
