Editing waypoints represent where the user clicked, not the actual
route. Exporting them causes reimported routes to look different
because BRouter re-routes without no-go areas.
Now both GPX export and Save to Journal only include the computed
track. On reimport, Douglas-Peucker extracts waypoints from the
track shape, preserving the route including no-go detours.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>