fix: support CJK title and author identity matching#16
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…fold; add full CJK name equality check for leading author matching
- normalize_title(): replace ASCII-only a-z0-9 filter with unicodedata.normalize("NFKC") + character.isalnum() to retain CJK/Unicode characters
- _full_leading_author_matches(): add NFKC+casefold full-name equality check before falling back to per-part comparison
- _leading_author_status(): add normalized full-name equality as a match condition alongside family-name key comparison
Fixes source_pdf_mismatch false negatives for Chinese-titled papers (e.g. same title/author previously scored title_similarity=0.0, leading_author=conflict).
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Summary
normalize_title()retains alphanumeric characters from all scripts (not just ASCII a-z0-9) viaunicodedata.normalize("NFKC")+character.isalnum(), so Chinese/Japanese/Korean titles no longer collapse to empty strings_full_leading_author_matches()before the per-part fallback, and a normalized full-name equality condition in_leading_author_status()— so identical CJK names like "朱云鹃" match correctly instead of degrading toconflictTest plan
python3 -m py_compile scripts/common.py