3-signal quality filter (length/alpha-ratio/bib-score) + rule-based section classifier + retroactive CLI pass. 35 new tests, 287 total green.
Documents the Nougat HTTP server endpoint. Resolves D-02 drift finding. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
pyproject.toml (Python 3.12, uv), codex/ package (config, db, models), infra/ (docker-compose + schema), .env.example, .gitignore, README. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>