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/Converters/ProviderToVisibilityConverter.cs

@@ -38,6 +38,11 @@ public class ProviderToVisibilityConverter : IValueConverter
     /// <summary>
     /// Converts a ConnectionProvider to a boolean indicating visibility.
     /// </summary>
+    /// <param name="value">The ConnectionProvider value to convert.</param>
+    /// <param name="targetType">The target type (bool).</param>
+    /// <param name="parameter">Unused converter parameter.</param>
+    /// <param name="culture">The culture for conversion.</param>
+    /// <returns>True if the value matches the target provider; otherwise, false.</returns>
     public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
     {
         if (value is ConnectionProvider provider)
@@ -50,6 +55,11 @@ public class ProviderToVisibilityConverter : IValueConverter
     /// <summary>
     /// Not implemented - this is a one-way converter.
     /// </summary>
+    /// <param name="value">The value to convert back.</param>
+    /// <param name="targetType">The target type.</param>
+    /// <param name="parameter">Unused converter parameter.</param>
+    /// <param name="culture">The culture for conversion.</param>
+    /// <exception cref="NotImplementedException">This converter does not support reverse conversion.</exception>
     public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
     {
         throw new NotImplementedException();