Fix missing dependencies: restore pdf2image, gradio, pytesseract, pyspellchecker, regex, scikit-image

Upgrade barcode reader to v2: multi-scale, multi-rotate, tiling, and tight rotated boxes for better recall

Final barcode reader implementation: ZXing-CPP with exact versions and improved robustness

Replace barcode reader with robust ZXing-CPP implementation

Fix spell check bottom exclusion: Add 115mm exclusion to fallback spell check

Implement improved barcode detection: Use OpenCV contrib with PDF XObject extraction

Remove validation text exceptions: Ignore all errors in bottom 115mm

Fix indentation error in spellchecker import block

Fix spellchecker import error: Use pyspellchecker with fallback imports

Complete setup: Add app.py, update requirements.txt and README.md

Add local files to Hugging Face space

initial commit