Bridge now sends latitude_deg/longitude_deg/heading_deg; map them to
PLANE_LATITUDE/PLANE_LONGITUDE/PLANE_HEADING_DEGREES_TRUE so position and
course land in the telemetry store and surface in /api/bridge/live.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
When /pm is opened with ?token=<bridge-token>, poll /api/bridge/live for
fresh telemetry. While the bridge keeps posting, mirror the sim's COM1
active frequency into the radio (only on actual sim change, so manual/flow
tuning isn't clobbered) and show a "Bridge connected" badge in the HUD.
Telemetry now carries COM_ACTIVE_FREQUENCY/COM_STANDBY_FREQUENCY from the
bridge's com_active_frequency/com_standby_frequency fields.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
