egg 63b474f93a test: add preprocessing pipeline test script ...

Adds test script for validating PDF preprocessing pipeline:
- Garble rate detection unit tests
- Page number pattern detection unit tests
- Integration tests with demo_docs/edit*.pdf files
- Quality report generation verification

Usage: PYTHONPATH=backend python3 scripts/run_preprocessing_tests.py

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

2025-12-03 16:51:12 +08:00

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run_preprocessing_tests.py

test: add preprocessing pipeline test script

2025-12-03 16:51:12 +08:00