Improve openapi docs - #349

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

Argument of type 'Dictionary<string, object>' cannot be used for parameter 'filterValues' of type 'Dictionary<string, object?>' in 'void CookieExtensions.extension(HttpContext).SetGridFilterCookie(string gridName, Dictionary<string, object?> filterValues)' due to differences in the nullability of reference types.

Argument of type 'Dictionary<string, object>' cannot be used for parameter 'filterValues' of type 'Dictionary<string, object?>' in 'void CookieExtensions.extension(HttpContext).SetGridFilterCookie(string gridName, Dictionary<string, object?> filterValues)' due to differences in the nullability of reference types.

Avoid inexact read with 'System.IO.Stream.Read(byte[], int, int)' (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2022)

'Exception.Exception(SerializationInfo, StreamingContext)' is obsolete: 'This API supports obsolete formatter-based serialization. It should not be called or extended by application code.' (https://aka.ms/dotnet-warnings/SYSLIB0051)

Argument of type 'Dictionary<string, object>' cannot be used for parameter 'values' of type 'Dictionary<string, object?>' in 'Task UploadViewManager.PromoteDraftFilesAsync(FormElement formElement, Dictionary<string, object?> values)' due to differences in the nullability of reference types.

Argument of type 'Dictionary<string, object>' cannot be used for parameter 'values' of type 'Dictionary<string, object?>' in 'string FileStoragePathExtensions.GetFolderPath(FormElement formElement, FormElementField field, Dictionary<string, object?> values)' due to differences in the nullability of reference types.

Argument of type 'Dictionary<string, object>' cannot be used for parameter 'filterValues' of type 'Dictionary<string, object?>' in 'void CookieExtensions.extension(HttpContext).SetGridFilterCookie(string gridName, Dictionary<string, object?> filterValues)' due to differences in the nullability of reference types.

Argument of type 'Dictionary<string, object>' cannot be used for parameter 'filterValues' of type 'Dictionary<string, object?>' in 'void CookieExtensions.extension(HttpContext).SetGridFilterCookie(string gridName, Dictionary<string, object?> filterValues)' due to differences in the nullability of reference types.

Argument of type 'Dictionary<string, object>' cannot be used for parameter 'filterValues' of type 'Dictionary<string, object?>' in 'void CookieExtensions.extension(HttpContext).SetGridFilterCookie(string gridName, Dictionary<string, object?> filterValues)' due to differences in the nullability of reference types.