Go exits on Ctrl+C without running defers, leaving the serial port locked; register shutdown hooks for serve and CLI commands.
Co-authored-by: Cursor <cursoragent@cursor.com>
Bench configs define command and console serial paths; scenarios can
reset nodes via esptool before tests. Smoke resets all nodes then waits
for ESP-NOW join.
Co-authored-by: Cursor <cursoragent@cursor.com>
JSON configs describe network and node MACs; scenarios run command
sequences with expect checks. Share UART client API across CLI and tests.
Co-authored-by: Cursor <cursoragent@cursor.com>
