chore: bump version to 0.0.5

chore: Remove `omniproof_logo` example image.

docs: add PyPI downloads badge to README

fix: resolve 5 mypy no-any-return errors failing CI

fix: restore audience_segment column after encoding in e2e test

docs: reorder README to lead with quick start and playground showcasing

docs: Add comprehensive project documentation covering architecture, causal methodology, examples, API reference, configuration, and getting started guides.

chore: open-source readiness improvements, bump to 0.0.4

docs: revamp README description, fix logo URL for PyPI, bump to 0.0.3

docs: Rephrase OmniProof's introductory description in the README for improved clarity and impact.

chore: bump version to 0.0.2

update

docs: Add new playground example notebooks, private repo guidelines, and .ipynb editing notes to CLAUDE.md

docs: Update `playground.ipynb` to include execution outputs and delete `playground_output.ipynb`.

update