Add full telemetry display in node popups including device metrics
(voltage, channel utilization, air TX) and environment sensors
(temperature, humidity, barometric pressure).
Add traceroute functionality with interactive visualization showing
hop paths and SNR values. Includes API endpoints for sending traceroutes
and retrieving results, plus a modal UI for displaying route information.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>