Add CI workflow with lint + headless test subset across 3 OS - #678

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mxschmitt wants to merge 3 commits into

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Commits on May 13, 2026

Apply ruff formatting to tests/ and drop u-string prefix in _info
mxschmitt
committed
3eb136a
Update test callbacks for the v1.8.0 injected parameter
mxschmitt
committed
209377f
Add CI workflow: ruff format check + headless test matrix
mxschmitt
committed
28b4a43