Based on MikroTik MIB analysis, added discovery for:
Device Information:
- Board name, display name, build time
Health Sensors - Voltages:
- Core voltage, 3.3V/5V/12V supplies, input voltage
Health Sensors - Temperatures:
- Sensor chip, CPU, board, system, processor temperatures
Health Sensors - Power & Cooling:
- Power consumption (W), current draw (mA)
- Processor frequency (MHz)
- Active fan status, fan speeds (RPM)
- Power supply state, backup PSU state
POE Monitoring (per port):
- Voltage, current, power consumption
- Automatically discovers all POE-enabled ports
Optical/SFP Monitoring (per interface):
- Temperature, voltage
- TX/RX optical power levels (dBm)
- Supports fiber transceivers and SFP modules
All sensors include proper units, divisors, and descriptive names.