Add `Api`, `ReadOnlyEnv`, and `Base` state features #4126

Job	Run time
Upload debug artifacts (stable-v2.20.3)	6m 14s
Upload debug artifacts (default)	4m 5s
Upload debug artifacts (linked)	5m 34s
Upload debug artifacts (nightly-latest)	6m 29s
Download and check debug artifacts	8s
	22m 30s

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