rename: store state in scratch #1044

Job	Run time
docs	1m 39s
lint	1m 39s
Rust unit tests (ubuntu-latest)	2m 31s
Rustfmt	7s
Rust unit tests (macos-latest)	1m 44s
test (macos-latest, 3.9)	4m 49s
Rust unit tests (windows-latest)	3m 21s
typecheck	1m 15s
test (macos-latest, 3.10)	3m 54s
test (macos-latest, 3.11)	4m 5s
test (macos-latest, 3.12)	5m 46s
test (macos-latest, 3.13)	5m 26s
test (ubuntu-latest, 3.9)	6m 15s
test (ubuntu-latest, 3.10)	6m 1s
test (ubuntu-latest, 3.11)	6m 20s
test (ubuntu-latest, 3.12)	8m 50s
test (ubuntu-latest, 3.13)	8m 54s
test (windows-latest, 3.9)	8m 58s
test (windows-latest, 3.10)	8m 2s
test (windows-latest, 3.11)	8m 51s
test (windows-latest, 3.12)	11m 11s
test (windows-latest, 3.13)	11m 46s
	2h 1m 24s

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