Roll an issues agent webhook signing secret
Replaces the signing secret for the given URL issues agent webhook. Slack destinations do not have signing secrets. The new secret is returned once in this response; future deliveries use it immediately. URL and header values are redacted; only a safe URL display and header names are returned.
Authorizations
Response
OK
HasUnreadableCredentials marks a row retained in the settings list whose encrypted credential envelope could not be opened. No credential-derived fields are populated for such a row; it must be deleted and recreated.
HeaderNames lists configured header names for write-only clients.
0, 1, 2, 3 SigningSecret is present only in successful create, URL-conversion update, and roll responses.
Keep empty Slack fields in the response. The frontend uses an explicit empty string to distinguish URL destinations from Slack destinations.
URL and Headers are retained as always-empty fields so a client written against the pre-write-only contract still parses the response. Use URLDisplay and HeaderNames instead.
URLDisplay contains only the destination hostname.

