feat(engine)!: refactor graphics, ECS, and logging APIs

Major refactor of graphics and ECS infrastructure:
- Removed IResourceManager, IRenderSystem, IFenceSynchronizer interfaces; ResourceManager and RenderSystem are now concrete classes.
- Updated all render graph, pipeline, and context code to use concrete ResourceManager.
- Refactored camera/frustum math and render extraction for clarity and correctness; frustum now uses inline arrays.
- RenderingLayerMask is now an immutable struct with bitwise operators.
- Meshlet and meshlet group data structures improved; meshlet build callback signature updated.
- Logging system overhauled: LogMessage is now a class, LogCollection supports change events, and Logger is used directly in the debug console.
- ECS query API: ChunkView.Count renamed to EntityCount; query builder/iterators use VirtualStack.Scope.
- Updated render pipeline and passes for new resource manager and render list APIs.
- Cleaned up obsolete files, improved code style, and updated documentation.
- HLSL meshlet shader updated for new struct layout.
- Debug console now uses new logger and log collection.

BREAKING CHANGE: Public APIs for resource management, rendering, ECS queries, and logging have changed. Interfaces removed; use new concrete types and updated method signatures.

src/Runtime/Ghost.Entities/Query.cs

@@ -96,7 +96,7 @@ public readonly unsafe ref struct ChunkView
     private readonly int _structuralVersion;
     private readonly int _currentVersion;
 
-    public readonly int Count => _entityCount;
+    public readonly int EntityCount => _entityCount;
 
     internal ChunkView(ref readonly Archetype archetype, ref readonly Chunk chunk)
     {
@@ -478,7 +478,7 @@ public unsafe partial struct EntityQuery : IDisposable
 
 public ref partial struct QueryBuilder : IDisposable
 {
-    private readonly Stack.Scope _scope;
+    private readonly VirtualStack.Scope _scope;
 
     private UnsafeList<Identifier<IComponent>> _all;
     private UnsafeList<Identifier<IComponent>> _any;
@@ -666,6 +666,10 @@ public ref partial struct QueryBuilder : IDisposable
         {
             Dispose();
         }
+        else
+        {
+            Clear();
+        }
 
         return queryID;
     }