Expose an SPI-attached MeshCore radio (uConsole AIO, Waveshare HATs) to
MeshTerm over the companion protocol on local TCP. A single stdlib-only
file that is both a plain-text setup menu and the bridge process: it finds
the pymc_core runtime and re-execs the bridge under it, offers run-now /
install-as-a-service / uninstall, and can add a [profiles.bridge] block so
the endpoint shows up in MeshTerm's device picker.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>