Initial barcode scanner webapp

Camera-based barcode scanner using ZXing for decoding. Requests wide
video (256x2048), rotates to landscape for decoding, applies contrast
boost and tries both HybridBinarizer and GlobalHistogramBinarizer.
Includes camera selector, manual/auto focus controls, and focus slider.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-03-21 23:41:23 +00:00
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