Introduce a new --mode (-m) argument that consolidates the three
mutually exclusive OCR processing options into a single enum:
- default: Error if text is found (standard behavior)
- force: Rasterize all content and run OCR (replaces --force-ocr)
- skip: Skip pages with existing text (replaces --skip-text)
- redo: Re-OCR pages, stripping old text layer (replaces --redo-ocr)
The legacy flags --force-ocr, --skip-text, and --redo-ocr remain as
silent aliases for backward compatibility. Both CLI and API usage
continue to work unchanged.
James R. Barlow
c69f293322