Roberto Musso
a2d6d689e4
feat: add preprocessor system (Step 1 — Local Agent V2)
- app/core/preprocessors/__init__.py: detect_content_type + preprocess dispatcher
- app/core/preprocessors/base.py: PreprocessResult dataclass
- app/core/preprocessors/email_html.py: BeautifulSoup HTML stripping, metadata extraction, thread splitting
- requirements.txt: add beautifulsoup4 and lxml
- tests/test_preprocessors.py: 10 tests with Langfuse scoring (preprocess.* scores)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>