- Add strip_nevo_preamble() to extractor.py — auto-removes Nevo database
headers (bibliography, legislation, mini-ratio) during training upload
- Add appeal_subtype column to style_patterns table — patterns are now
stored per subtype instead of globally mixed
- Update clear_style_patterns() to support subtype-scoped deletion
- Pass appeal_subtype through analyze_corpus → store → upsert pipeline
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>