Clean up, improve typing #3329

Job	Run time
Shellcheck	7s
Dependency	6s
Cache identify	4s
Prepare	8s
Ruff check and force	10s
Check commit	40s
Run pytest using Python 3.14	37s
Run mypy	0s
Process test coverage	0s
Process test complexity	0s
Build and publish Python 🐍 distributions 📦 to TestPyPI	0s
	1m 52s

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