feat(eval): conversation tracking and --preserve-failed flag #1944

Job	Run time
Collect changes / collect-changes	9s
Python tests / types-check	15s
Python tests / docs-scripts-tests	14s
Python tests / lint-and-format-check	14s
Python tests / unit-tests (py314)	2m 58s
Python tests / unit-tests (py312)	2m 22s
Python tests / unit-tests (py313)	2m 51s
Python tests / unit-tests (py310)	3m 35s
Python tests / unit-tests (py311)	3m 42s
status-check	4s
	16m 24s

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