Function NotifyAuthFailure

src/common/cloud_storage.cpp:217–225

// Guarded by std::once_flag so the user sees it at most once per Steam session.
static std::once_flag g_authFailureOnce;
void NotifyAuthFailure(const std::string& providerName) {
    std::call_once(g_authFailureOnce, [&providerName] {
        CloudWorkQueue::ShowErrorDialog(
            providerName + " authentication failed!\n\n"
            "CloudRedirect cannot refresh your access token.\n"
            "Cloud sync is disabled until this is resolved.\n\n"
            "Re-authenticate using the CloudRedirect setup tool.");
    });
}

// WorkItem/EnqueueWork/queue infra moved to cloud_work_queue.h/.cpp.
static std::string LocalStoragePath(uint32_t accountId, uint32_t appId);