1f7b712dd0
main.py unifies the call to both engines and always passes `sender_model_path` (None for non-Kurrent scripts). Surya's extract_region_text / extract_page_blocks accepted one fewer positional arg than Kraken's, so every guided-OCR run on a TYPEWRITER or HANDWRITING_LATIN document raised "takes 5 positional arguments but 6 were given" and the stream returned 0 blocks / 1 skipped page. Add an ignored `sender_model_path` kwarg to both Surya functions so the signatures match Kraken's, and guard the regression with two signature tests in test_engines.py that compare both engines' parameter lists. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>