DeleteSignature

Cancels a signature request by setting its status to CANCELED. This prevents the signature from being executed and marks it as permanently inactive.

Cancellation rules:

• Can only cancel requests with status:\ SAVED or READY

• Cannot cancel already SIGNED, EXPIRED, or CANCELED requests

• Action is irreversible - canceled requests cannot be reactivated

void DeleteSignature(FString Id, const FVyOnComplete& OnComplete) const;

Parameters

Id	FString	UUID of the signature request to cancel
OnComplete	FVyOnComplete	The callback function called when the user preferences retrieval operation is complete.