refactor(shader): rewrite editor shader compilation bridge with keyword resolution

- Add AssetCatalog.EnumerateByTypes for filtered SQL queries
- Thread LocalKeywordSet through IShaderCompilationBridge API so the
  bridge can resolve keyword bitmask to string defines at compile time
- Eager/lazy popluation of shader-id-to-asset-id map eliminating
  full catalog scan per compilation miss
- Build keyword mapping from PassDescriptor groups to reconstruct
  localIndex -> keywordName in the bridge
- Use CompileShaderPass extension for multi-stage AS/MS/PS compilation
  with correct ShaderModel from descriptor
- Remove double-load of shader asset in compilation flow
- Update test mock to match new interface signature

src/Editor/Ghost.Editor/App.xaml.cs

@@ -7,6 +7,7 @@ using Ghost.Editor.ViewModels.Controls;
 using Ghost.Editor.ViewModels.Windows;
 using Ghost.Editor.Views.Windows;
 using Ghost.Engine;
+using Ghost.Graphics.RHI;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.UI.Dispatching;
@@ -66,6 +67,7 @@ public partial class App : Application
                 services.AddSingleton<IPreviewService, PreviewService>();
                 services.AddSingleton<IAssetRegistry, AssetRegistry>();
                 services.AddSingleton<IContentProvider, EditorContentProvider>();
+                services.AddSingleton<IShaderCompilationBridge, EditorShaderCompilerBridge>();
 
                 services.AddSingleton<EngineCore>();