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- TackDetector: sliding-window COG algorithm (60-140deg delta = tack/jibe)
with stability check to prevent mixed-window false positives; 13 tests green
- TackEvent, SavedTrack: new models wrapping points + summary + detected tacks
- TrackRepository.getSavedTracks(): returns List<SavedTrack> with lazy load
- MapHandler: zoomToTrackBounds (LatLngBounds fit with padding),
panToPoint (log step-through), updateTackLayer (yellow circle markers)
- MainViewModel: savedTracks + selectedTrack StateFlows, panToPosition SharedFlow
- SavedTracksFragment: RecyclerView list with date/distance/duration/tack count
- TrackDetailSheet: bottom sheet with stats + event log (tacks, speed changes,
start/end); tapping an entry pans the map to that position
- MainActivity: zoom map on track complete, wire Saved Tracks button in
instrument sheet, observe panToPosition to drive map, show tack markers
when a saved track is selected
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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