Initial commit: Complete open-source Decal rebuild

All 5 phases of the open-source Decal rebuild:

Phase 1: 14 decompiled .NET projects (Interop.*, Adapter, FileService, DecalUtil)
Phase 2: 10 native DLLs rewritten as C# COM servers with matching GUIDs
  - DecalDat, DHS, SpellFilter, DecalInput, DecalNet, DecalFilters
  - Decal.Core, DecalControls, DecalRender, D3DService
Phase 3: C++ shims for Inject.DLL (D3D9 hooking) and LauncherHook.DLL
Phase 4: DenAgent WinForms tray application
Phase 5: WiX installer and build script

25 C# projects building with 0 errors.
Native C++ projects require VS 2022 + Windows SDK (x86).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Managed/Decal.Adapter/Decal.Adapter.Wrappers/EnchantmentWrapper.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Runtime.InteropServices;
+using Decal.Interop.Filters;
+
+namespace Decal.Adapter.Wrappers;
+
+public class EnchantmentWrapper : MarshalByRefObject, IDisposable
+{
+	private Enchantment myEnchantment;
+
+	private bool isDisposed;
+
+	public double Adjustment => myEnchantment.Adjustment;
+
+	public int Affected => myEnchantment.Affected;
+
+	public int AffectedMask => myEnchantment.AffectedMask;
+
+	public double Duration => myEnchantment.Duration;
+
+	public int Family => myEnchantment.Family;
+
+	public int Layer => myEnchantment.Layer;
+
+	public int SpellId => myEnchantment.SpellID;
+
+	public int TimeRemaining => myEnchantment.TimeRemaining;
+
+	public DateTime Expires => DateTime.Now.AddSeconds(TimeRemaining);
+
+	internal EnchantmentWrapper(Enchantment enchant)
+	{
+		myEnchantment = enchant;
+	}
+
+	~EnchantmentWrapper()
+	{
+		Dispose(disposing: false);
+	}
+
+	public void Dispose()
+	{
+		Dispose(disposing: true);
+		GC.SuppressFinalize(this);
+	}
+
+	protected virtual void Dispose(bool disposing)
+	{
+		if (!isDisposed)
+		{
+		}
+		if (myEnchantment != null)
+		{
+			Marshal.ReleaseComObject(myEnchantment);
+		}
+		isDisposed = true;
+	}
+
+	protected void EnforceDisposedOnce()
+	{
+		if (isDisposed)
+		{
+			throw new ObjectDisposedException("EnchantmentWrapper");
+		}
+	}
+}