- Floor plan upload panel with image selection and preview
- Two-point calibration UI with pixel distance measurement
- Real-world distance input for scale computation
- Pixel-to-meter scale factor calculation and storage
- Fixed floor plan image serving at /floorplan/image.png
- Integration with Viz3D ground plane texture
- CSS styling for floor plan setup panel
- Image persists across server restart via SQLite
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
