Propagate receiver location (WGS84 decimal degrees) through the state
pipeline so frontends can display the server position on a map.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>
Add optional server_callsign and server_version fields to both
RigState and RigSnapshot so that server identity information can
flow through the protocol to clients and frontends.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>