Marius Mutu 495790411f feat(ocr): Add docTR OCR engine with metrics infrastructure ...

Add docTR as primary OCR engine with 2-tier sequential processing,
OCR metrics tracking, and simplified engine selection.

Features:
- docTR OCR engine with light+medium preprocessing tiers
- doctr_plus mode with early exit optimization (~65% fast path)
- OCR metrics dashboard with per-engine statistics
- User OCR preference persistence
- Parallel worker pool for OCR processing
- Cross-validation for extraction quality

Engine options: tesseract, doctr, doctr_plus (recommended), paddleocr

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-01-02 05:37:16 +02:00

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