- Add Chart.js integration for interactive sensor graphs
- Add processor, memory, storage, temperature, and voltage charts showing 24 hours of data
- Fix device information box to use natural height instead of stretching
- Update MikroTik profile to discover ENTITY-SENSOR-MIB sensors
- Support multiple sensor types per chart (celsius/temperature, volts/voltage)
- Use 24-hour time format in chart tooltips and x-axis labels
- Support auto-scaling y-axis for non-percentage metrics
