Function validateAndExtractCommitResponse

validateAndExtractCommitResponse(
    envelope: Envelope,
    coordinatorKeys: PrivateKeys,
    expectedSender: XID,
    expectedSessionId: ARID,
): SignRound1ResponseData
Validate and extract data from a sign commit response.

Port of validate_and_extract_sign_round1_response() from cmd/sign/coordinator/round1.rs.
Parameters
- envelope: Envelope
- coordinatorKeys: PrivateKeys
- expectedSender: XID
- expectedSessionId: ARID
Returns SignRound1ResponseData
- Defined in cmd/sign/coordinator/round1.ts:198