ci: run pythinker-code checks on every PR; align release docs #70

Job	Run time
release-validate	7s
check	44s
nix-test (ubuntu-22.04, x86_64-unknown-linux-gnu, dist/pythinker)	1m 50s
test (3.13)	6m 30s
nix-test (macos-14, aarch64-apple-darwin, dist/pythinker)	3m 23s
nix-test (ubuntu-22.04-arm, aarch64-unknown-linux-gnu, dist/pythinker)	1m 21s
test (3.12)	6m 50s
test (3.14)	6m 6s
build (windows-2025-vs2026, x86_64-pc-windows-msvc, dist/onefile/pythinker.exe, true)	5m 19s
build (ubuntu-22.04, x86_64-unknown-linux-gnu, dist/onefile/pythinker)	3m 22s
build (ubuntu-22.04-arm, aarch64-unknown-linux-gnu, dist/onefile/pythinker)	2m 44s
build (windows-2022, x86_64-pc-windows-msvc, dist/onefile/pythinker.exe)	4m 3s
build (macos-14, aarch64-apple-darwin, dist/onefile/pythinker)	2m 8s
	44m 27s

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