- New route: /admin/node-health (30s auto-refresh)
- Temps via lm-sensors (k10temp + NVMe) displayed in both °C and °F
- RAM and disk progress bars with color thresholds
- Load averages, CPU %, uptime per node
- Nav item added under Operations
- lm-sensors installed on NC1 and TX1
Task #28 | Chronicler #88