- Pin redis==7.3.0 and move to requirements.txt (production)
- Create requirements-dev.txt with all dev/test deps pinned to exact versions
(pytest-mock==3.15.1, black==26.1.0, ruff==0.15.0)
- Remove dev/test tools from requirements.txt (not needed in Docker image)
- Document pinning policy and requirements-dev.txt usage in CLAUDE.md
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>