CHW-4801 ClientIDRequired

client identifier is required; supply it in the URL path (/api/clients/{client_id})

Default message: client identifier is required; supply it in the URL path (/api/clients/{client_id})
HTTP status: 400 (client)

Problem. /api/clients/{id} was called with an empty id segment. Cause. The client identifier in the URL path was missing or whitespace-only. Fix. Supply a non-empty client_id in the path, e.g. /api/clients/ci-release-bot. HTTP 400.