fix(lox-space): add comms type stubs to fix Python docs build
The mkdocs build was failing because comms types (Decibel, Modulation,
antenna patterns, receivers, transmitters, etc.) were missing from the
.pyi stub file. mkdocstrings relies on these stubs for documentation
generation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>