hotfix: avoid circular import between models and config #307

Job	Run time
mypy	19s
ruff	12s
unit (windows-latest, 3.12, lowest-direct)	3m 6s
unit (windows-latest, 3.11, highest)	2m 42s
unit (macos-latest, 3.13, lowest-direct)	1m 30s
unit (windows-latest, 3.13, lowest-direct)	2m 37s
unit (windows-latest, 3.13, highest)	3m 9s
unit (ubuntu-latest, 3.13, highest)	2m 28s
unit (macos-latest, 3.12, lowest-direct)	2m 14s
unit (macos-latest, 3.11, highest)	1m 27s
unit (windows-latest, 3.11, lowest-direct)	2m 33s
unit (macos-latest, 3.12, highest)	2m 3s
unit (ubuntu-latest, 3.12, lowest-direct)	2m 21s
unit (ubuntu-latest, 3.11, highest)	1m 46s
unit (macos-latest, 3.13, highest)	2m 7s
unit (ubuntu-latest, 3.12, highest)	2m 2s
unit (windows-latest, 3.12, highest)	2m 37s
unit (macos-latest, 3.11, lowest-direct)	1m 50s
unit (ubuntu-latest, 3.13, lowest-direct)	2m 34s
unit (ubuntu-latest, 3.11, lowest-direct)	2m 7s
coverage	7s
	41m 51s

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