Reassign this slot to someone else

Hands the signing slot to a different person, with a reason: the recipient row is updated in place to the new name/email and a fresh token is minted, the original invitee is preserved (reassignedFromName/Email on the recipient), the substitution is recorded in the audit trail, the new signer is emailed their own signing link, and the document owner is notified. One hop only — a slot that has already been reassigned once cannot be reassigned again — and not available on a signer-group slot (EAS-125; a group member steps back by declining instead).

curl -X POST "https://example.com/public/signing/string/reassign" \  -H "Content-Type: application/json" \  -d '{    "name": "string",    "email": "string"  }'

{  "status": "string"}