* Validate client IDs before applying them * Add operation result to return * Update src/Umbraco.Cms.Api.Management/Controllers/User/ClientCredentials/ClientCredentialsUserControllerBase.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Zeegaan <skrivdetud@gmail.com> Co-authored-by: Nikolaj Geisle <70372949+Zeegaan@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>