Probe and configure the sensor when present; log and continue boot if
init fails so boards without BMA456 still run normally.
Co-authored-by: Cursor <cursoragent@cursor.com>
Track ESP-NOW slaves in a shared registry and respond to CLIENT_INFO
with protobuf ClientInfoResponse; ESP-NOW path upserts registry entries.
Co-authored-by: Cursor <cursoragent@cursor.com>
Centralize command dispatch over a FreeRTOS queue so UART and future
ESP-NOW transports can register handlers; implement the protobuf VERSION
command with framed nanopb responses including build git hash.
Co-authored-by: Cursor <cursoragent@cursor.com>
