feat: expand InitializationState with explicit lifecycle state machine #1804

Job	Run time
checks / readme-snippets	14s
checks / pre-commit	29s
checks / test (3.10, lowest-direct, windows-latest)	2m 33s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.10, locked, ubuntu-latest)	55s
checks / test (3.10, locked, windows-latest)	2m 23s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 5s
checks / test (3.11, locked, ubuntu-latest)	55s
checks / test (3.11, lowest-direct, windows-latest)	3m 3s
checks / test (3.12, locked, windows-latest)	3m 38s
checks / test (3.12, locked, ubuntu-latest)	57s
checks / test (3.11, locked, windows-latest)	2m 31s
checks / test (3.12, lowest-direct, windows-latest)	3m 26s
checks / test (3.10, lowest-direct, ubuntu-latest)	58s
checks / test (3.13, locked, ubuntu-latest)	50s
checks / test (3.13, lowest-direct, windows-latest)	2m 56s
checks / test (3.14, lowest-direct, windows-latest)	2m 27s
checks / test (3.13, lowest-direct, ubuntu-latest)	56s
checks / test (3.13, locked, windows-latest)	2m 31s
checks / test (3.14, locked, ubuntu-latest)	2m 22s
checks / test (3.14, locked, windows-latest)	3m 43s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 24s
all-green	2s
	41m 18s

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