docs: add XML documentation to NEW solution src files

Fix 173 of 175 documentation issues across 48 files using CommentChecker,
adding missing <summary>, <param>, and <inheritdoc /> tags to public APIs.

NEW/src/Utils/JdeScoping.ConfigManager/ViewModels/PipelineSteps/DestinationStepViewModel.cs

@@ -9,14 +9,26 @@ public class DestinationStepViewModel : PipelineStepViewModelBase
 {
     private readonly DestinationElement _model;
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="DestinationStepViewModel"/> class.
+    /// </summary>
+    /// <param name="model">The destination configuration model.</param>
+    /// <param name="onChanged">Callback invoked when the destination configuration changes.</param>
     public DestinationStepViewModel(DestinationElement model, Action onChanged) : base(onChanged)
     {
         _model = model ?? throw new ArgumentNullException(nameof(model));
     }
 
+    /// <inheritdoc />
     public override PipelineStepType StepType => PipelineStepType.Destination;
+
+    /// <inheritdoc />
     public override string DisplayName => "Destination";
+
+    /// <inheritdoc />
     public override string Icon => "󰆼"; // mdi-database
+
+    /// <inheritdoc />
     public override string Summary => !string.IsNullOrEmpty(Table) ? $"→ {Table}" : "(no table)";
 
     /// <summary>