Adopt `uv` workspaces and fix `readme.md` #402

Job	Run time
Check running without dependencies	12s
Ubuntu / 3.11	14s
Ubuntu / 3.12	12s
Ubuntu / 3.10	11s
MacOS / 3.12	22s
Ubuntu / 3.13	13s
MacOS / 3.11	18s
Windows / 3.12	33s
MacOS / 3.13	16s
Windows / 3.10	37s
Windows / 3.13	1m 19s
Windows / 3.11	1m 46s
MacOS / 3.10	22s
	6m 35s

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