Infrastructure improvements:
1. GitHub Actions CI workflow:
- Test on Julia 1.10 (LTS) and latest stable
- Ubuntu Linux runner
- Code coverage via Codecov
2. Documentation build workflow:
- Builds on push to master/main and PRs
- Uses Documenter.jl with GitHub Pages deployment
3. Fix missing exports for tests:
- Add Statistics to test dependencies
Tests still have API mismatches (49 failures) but infrastructure is now
Jukka Aho