CSharp API Endpoints

Added the plugin yesterday and built some generic endpoints, chased down some issues I was having. I don't expect this to impact the plugins functionality, but I'm able to workaround these for the time being.

PSU Version: 2026.2.2 (also found in 2026.2.4 DLLs)
Host: Windows Server 2025
Web: IIS
DB: SQL
Component: PowerShellUniversal.Language.CSharp

Finding #1 - ApiRequest.Roles is nested under nullable parent SecurityContext and is List<string> not string[]

  // expected usage, from current documentation
  var roles = request.Roles ?? Array.Empty<string>();
  // corrected, working
  var roles = request.SecurityContext?.Roles ?? new List<string>();

Finding #2 - ref/using extraction match literal CRLF. LF-only lines never hit. CSharpExecutionService extracts directives with:

  private readonly Regex _reference = new Regex("#ref (.*)\r\n");
  private readonly Regex _using = new Regex("#using (.*)\r\n");

Finding #3 - Directive-extraction is not anchored and will hit on comments and string literals. Reference #2.

Finding #4 - Matched `#using` directives are not terminated with `;`. Documentation shows code snippets without trailing `;`

  // reproduce with
  #ref System.Collections
  #using System.Collections.Generic

  var roles = request.SecurityContext?.Roles ?? new List<string>();
  // corrected with trailing ; on using directive