Test Gates

1. Launch from Homebrew Channel and verify HOME exits cleanly.
2. Plug in the Olygos 2.4 GHz receiver and verify printable keys, Enter, Backspace, Esc, arrows, and Ctrl-C.
3. Confirm the Wii receives an IP address from DHCP.
4. Confirm /healthz displays as online.
5. Submit a line to pi4-main and verify the tmux output appears on the Wii.
6. Hold Wiimote 1+2 or press Ctrl-C on the keyboard and verify the active session is interrupted.
7. Stop the relay and confirm the Wii shows offline status without freezing.