Removes the leaked Google Maps API key literal from README.md and the
live com.google.android.geo.API_KEY in AndroidManifest.xml (which shipped
in every built APK). The manifest value is now the build-time placeholder
${MAPS_API_KEY}, injected via AndroidManifestPlaceholders from the
MapsApiKey MSBuild property, resolved from a CI secret (-p:MapsApiKey=),
the MAPS_API_KEY env var, or a gitignored maps.key.props at the repo root
(maps.key.props.example committed as the template). maps.key.props is
gitignored so a real key is never committed.
No rotated key is included here; the human supplies it via CI secret.
Pairs with the console key rotation to close SEC-1 (decisions.md
2026-08-20; security/sec-1-gmaps-key.md). Git history intentionally not
rewritten (recorded risk-acceptance relies on revocation of the old key).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Added Maglink RTK GNSS receiver integration with correct BLE UUIDs and device name filtering (ML-* prefix).
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
