v0.68 since v0.67
Fix track polyline drifting ahead of ship marker (incremental merge bug).
Incremental plane updates with ?since= and timeout-based cleanup.
RainViewer: 2 min → 10 min, paused while tab hidden, clouds layer removed.
Fix MMSI key corruption in path JSON.
Fix sticky hover-suppression after map moves.
@filename response files; systemd unit drops the bash -c subshell.