Switch handleSetHostCredentials, handleSetAdminCredentials, and
handleDeleteAdminCredentials from authedUser (bool) to requireUser
(*store.User) so AuditEntry.UserID and Actor are populated correctly.
Add slog.Warn on the non-ErrNotFound pushAdminCredsToAgent path in
handleRunRepoPrune so decrypt/send failures surface in the server log
rather than appearing as a generic host_offline 503.
steve
b35f1736f7