CHW-2304 RepositoryHookBlocked

request blocked by repository hook; review the hook response or the hook configuration

Default message: request blocked by repository hook; review the hook response or the hook configuration
HTTP status: 403 (client)
Reason: HOOK_BLOCK

Problem. A repository hook (custom scanner or webhook) requested that the response be blocked. Cause. The hook returned block=true for this package. Fix. Review the hook response body and the hook configuration, then either adjust the hook, request an exception, or fix the underlying scanner finding. HTTP 403.