Writes / reads / removes the box's Wi-Fi over the serial port with the
usb_console commands (kota ping, wifi set|get|clear, health) and follows
the box through the restart until it joins the network. The password is
sent hex-encoded and never logged.
firmware/ now holds merged-binary-v13.bin (build 3ae273ec) instead of the
previous 1.0.16 build; error_ids.csv synced with the firmware.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>