kbcstorage pins urllib3<2.0.0 which blocks Dependabot security patches.
Moved to [project.optional-dependencies] keboola-legacy since the primary
extraction path uses the DuckDB Keboola extension, not kbcstorage.
Legacy fallback uses lazy import — app works without it installed.
- All dependencies now in pyproject.toml [project.dependencies]
- Dev/test deps in [project.optional-dependencies] dev and [tool.uv]
- Dockerfile uses uv pip install . from pyproject.toml
- CI uses uv pip install ".[dev]"
- Deleted requirements.txt and requirements-dev.txt
- Updated README, CLAUDE.md install instructions
- Enhanced .dockerignore (exclude tests, docs, infra from image)
