- Fix remote camera autocrop rotation by swapping ArUco corners for phone camera
(detectMarkers assumes Desk View orientation which is 180° rotated)
- Add rotate left/right buttons to CalibrationOverlay for manual calibration
- Fix mode switching bug: switching to auto mode now clears desktop calibration
on phone via new 'remote-camera:clear-calibration' socket event
- Add copy button to QR code URL with visual feedback
- Fix text selection spanning into video feed with userSelect: none
- Add flip camera and torch controls to local camera UI
- Add session persistence for remote camera reconnection
- Fix 4:3 aspect ratio for cropped abacus output
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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