[pattonw]

Why

Tests only ran on push, so a pull request from a fork never got a test run. The ruff job linted funlib/persistence, a path that has not existed since the move to src/: ruff warned and exited 0, so only tests/ has been linted. There was no format check, actions tracked @master/@main, and publishing went through pip + setup-python@v3.

What changes

• tests.yaml: triggers on pull_request, pushes to main, and manual dispatch. Matrix is the requires-python floor and newest (3.11, 3.14) × highest/lowest-direct. setup-uv@v6 pins the interpreter, uv sync installs, pytest reports coverage (pytest-cov is added to the dev group). The PostgreSQL service is unchanged.
• lint.yaml replaces ruff.yaml and ty.yaml: ruff check . (whole tree), ruff format --check . (new) and ty check src tests, each on pull requests.
• publish.yaml: uv build instead of pip + setup-python@v3; runs on v* tags only. The PYPI_API_TOKEN secret is still used; id-token: write is in place for trusted publishing once a publisher is registered on PyPI.
• README badges follow the renamed workflows.

A second commit is mechanical: ruff format . (five files) and one import-order fix in explore.ipynb, with the pinned ruff 0.17.3, so the new checks start green.

Verified locally

• ruff check . and ruff format --check .: clean.
• ty check src tests: 10 diagnostics, the same 10 as on main (the ty job is red on main already; unchanged here).
• pytest tests on 3.11 / lowest-direct and 3.14 / highest: 134 passed, 29 skipped each (the PostgreSQL tests need the service and are skipped here).

🤖 Generated with Claude Code

[pattonw]

Follow-up commit: the first CI run showed that lowest-direct cannot install on the newest interpreter in the matrix (the lowest pinned versions of some dependencies ship no wheels for it and their sdists do not build there). That one cell is now excluded with a comment; the floor interpreter still runs lowest-direct, and the newest runs highest.