Add SKILL.md and enrich package docstring #334

Job	Run time
build / lint-rust	14s
build / lint-python	11s
build / lint-toml	6s
build / generate-license	51s
build / check-crates-patch	0s
build / ManyLinux x86_64	1m 32s
build / ManyLinux arm64	9m 23s
build / macOS arm64 & Windows (3.10, windows-latest)	2m 33s
build / macOS arm64 & Windows (3.10, macos-latest)	5m 25s
build / build-macos-x86_64	0s
build / Source distribution	0s
build / Build docs	0s
build / Merge build artifacts	0s
test	0s
build / lint-toml	6s
build / generate-license	51s
build / check-crates-patch	-18965s
build / lint-rust	14s
build / ManyLinux x86_64	13m 38s
build / lint-python	11s
build / macOS arm64 & Windows (3.10, windows-latest)	4m 9s
build / build-macos-x86_64	-18912s
build / Source distribution	-18912s
build / ManyLinux arm64	9m 23s
build / macOS arm64 & Windows (3.10, macos-latest)	5m 25s
build / Build docs	45s
build / Merge build artifacts	-1s
test / test-matrix (3.12, stable)	3m 46s
test / test-matrix (3.14, stable)	4m 3s
test / test-matrix (3.11, stable)	3m 48s
test / test-matrix (3.10, stable)	3m 51s
test / test-matrix (3.13, stable)	3m 52s
	-52333s

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