feat: expand InitializationState with explicit lifecycle state machine #819

Job	Run time
checks / pre-commit	39s
checks / readme-snippets	11s
checks / test (3.11, lowest-direct, ubuntu-latest)	49s
checks / test (3.10, locked, ubuntu-latest)	44s
checks / test (3.10, lowest-direct, windows-latest)	2m 30s
checks / test (3.11, lowest-direct, windows-latest)	2m 54s
checks / test (3.10, locked, windows-latest)	2m 4s
checks / test (3.10, lowest-direct, ubuntu-latest)	48s
checks / test (3.13, lowest-direct, ubuntu-latest)	50s
checks / test (3.12, lowest-direct, ubuntu-latest)	56s
checks / test (3.13, lowest-direct, windows-latest)	2m 39s
checks / test (3.12, locked, windows-latest)	3m 12s
checks / test (3.14, locked, ubuntu-latest)	2m 14s
checks / test (3.14, locked, windows-latest)	3m 28s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 8s
checks / test (3.11, locked, windows-latest)	2m 38s
checks / test (3.13, locked, windows-latest)	2m 24s
checks / test (3.12, locked, ubuntu-latest)	53s
checks / test (3.13, locked, ubuntu-latest)	48s
checks / test (3.11, locked, ubuntu-latest)	47s
checks / test (3.12, lowest-direct, windows-latest)	3m 14s
checks / test (3.14, lowest-direct, windows-latest)	2m 28s
all-green	4s
	38m 22s

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