refactor(dcl): simplify ValueFormatter now that SDK returns native .NET arrays

The LmxProxy client's ExtractArrayValue now returns proper .NET arrays
(bool[], int[], DateTime[], etc.) instead of ArrayValue objects. Removed
the reflection-based FormatArrayContainer logic — IEnumerable handling
is sufficient for all array types.

src/ScadaLink.DataConnectionLayer/Adapters/LmxProxyDataConnection.cs

@@ -234,8 +234,8 @@ public class LmxProxyDataConnection : IDataConnection
 
     /// <summary>
     /// Normalizes a Vtq value for consumption by the rest of the system.
-    /// Converts LmxProxy ArrayValue objects to comma-separated strings
-    /// so downstream code doesn't need to know about LmxProxy domain types.
+    /// Converts .NET arrays (bool[], int[], DateTime[], etc.) to comma-separated
+    /// display strings so downstream code sees simple string representations.
     /// </summary>
     private static object? NormalizeValue(object? value) => value switch
     {