====== Telemetry to Home Assistant ======

A small system-signed bridge app reads the CAN service and publishes live vehicle data to an **MQTT
broker with Home Assistant auto-discovery**, so the car shows up automatically as a device with
sensors.

Published values include: **SoC**, range, HV voltage/current, power, speed, inside/outside temp,
doors, windows, central lock, a **charging** flag, and an estimated **time-to-full** (there is no
native time-to-full — see [[control]]). It also republishes the current **speed limit / over-speed**
state from the map-matcher (see [[speedwarning]]).

The bridge joins a known Wi-Fi when in range, uses MQTT last-will for availability, and can fall
back to a phone hotspot.