Add 2025-08-01-preview - #38919

Errors occurred while generating SDK from specification/containerservice. Follow the steps at https://aka.ms/azsdk/sdk-automation-faq#how-to-view-the-detailed-sdk-generation-errors to view detailed errors.
[ERROR] Failed to build the sdk project: Azure.ResourceManager.ContainerService for service: containerservice. Exit code: False. Please review the detail errors for potential fixes. If the issue persists, contact the DotNet language support channel at https://aka.ms/azsdk/dotnet-teams-channel and include this spec pull request.
The generation process failed for specification-containerservice-resource-manager-Microsoft.ContainerService-fleet-readme.md. Refer to the full log for details.