- Remove try-except in CameraCalibrator — errors propagate to UI
- Remove auto-load of saved calibrations — always start uncalibrated
- Remove hardcoded "Base Setup" card with fake values
- Remove addStereocameras/getCamParams dead code
- Draw all detected Hough lines + corners on debug frame during calibration
- Show debug images in calibration tab after attempt
- Show error messages in UI instead of swallowing them
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>