Keep model-authored acceptance from carrying a setup command - #2079

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache@v4, actions/checkout@v4, actions/setup-dotnet@v4, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

'IMiscellaneousClient.RenderArbitraryMarkdown(NewArbitraryMarkdown)' is obsolete: 'This client is being deprecated and will be removed in the future. Use MarkdownClient.RenderArbitraryMarkdown instead.'

Possible null reference argument for parameter 'usage' in 'JournalModelCall SupervisorPlanModelCallFactsSource.ToModelCall(SupervisorPlanModelUsageObservationLeaf usage)'.

Dereference of a possibly null reference.

Non-nullable property 'RecomputedHash' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'StoredHash' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference assignment.

Possible null reference assignment.

Possible null reference assignment.

Nullability of reference types in value of type 'Dictionary<Guid, (string PayloadJson, string? OutcomeJson)>' doesn't match target type 'IReadOnlyDictionary<Guid, (string? PayloadJson, string? OutcomeJson)>'.

The type 'TRequest' cannot be used as type parameter 'TRequest' in the generic type or method 'IPipelineBehavior<TRequest, TResponse>'. Nullability of type argument 'TRequest' doesn't match 'notnull' constraint.