Buildable Envelope Planner

Invalid date

Correctness and reliability release.
Unreliable setback geometry is now flagged, not reported as buildable area.
The lot editor saves as you edit — the back button no longer discards changes.
The app always opens, even if a saved lot cannot be read, and nothing is deleted.
Dates follow your language; elevations and coordinates show their unit.
Figures are never cut off, and results that fail a limit are no longer coloured as if they passed.
Purchase, dialog and accessibility fixes.