Unit test and code coverage

Add `uv.lock` to `.gitignore` for library projects #7

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Run time

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Job	Run time
build (3.10)	4m 26s
build (3.12)	4m 36s
build (3.14)	4m 56s
build (3.11)	4m 12s
build (3.9)	5m 6s
build (3.13)	4m 32s
	27m 48s