OptionaldefaultsOptionalrevalidateWhen errors surface. 'submit' (default): only at validate()/parse.
'touched': a field the user has written is judged on every recompute —
touched = written, the store stays UI-blind. Pristine fields never scold.
OptionalstorageOptionalwarnSet false to silence the codec-churn warning (see getCodecChurn).
Seed values — treated as boundary input, so their input schemas run.