123b7ada0b
Phantom column fix: Adjacent tiny gaps (e.g. 11px + 35px) can create very narrow columns (< 3% of content width) with 0 words. These are scan artefacts, not real columns. New Step 9 in detect_column_geometry(): - Filter columns where width < max(20px, 3% content_w) AND words < 3 - After filtering, extend each remaining column to close the gap with its right neighbor, and re-assign words to correct column Example from logs: 5 columns → 4 columns (phantom at x=710, width=36px eliminated; neighbors expanded to cover the gap) UI rename: - 'Schritt 6: LLM-Korrektur' → 'Schritt 6: OCR-Zeichenkorrektur' - 'LLM-Korrektur starten' → 'Zeichenkorrektur starten' - Error message updated accordingly (No LLM involved anymore — spell-checker is the active engine) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>