- New CorrectedImageViewer component with dual-canvas (image + overlay)
- Point-to-point measurement tool: click two points, see mm distance
- Toggleable grid overlay with configurable spacing and major lines
- Scale bar export: appends measurement bar to downloaded PNG
- Progress bar with step labels during algorithm execution
- Estimated output size shown before running, blocks if > 512MB
- Actual output dimensions/filesize shown in diagnostics
- Filename changed to originalname-skwik.png
- Collapsible algorithm explanation with numbered steps
- Process New Image button to reset and start over
- Scale bar tooltip explaining the feature
- Add shadcn-vue Checkbox component
Co-Authored-By: Claude <noreply@anthropic.com>
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