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.Graphics/RenderGraphModule/RenderGraph.cs

@@ -8,7 +8,7 @@ namespace Ghost.Graphics.RenderGraphModule;
 /// </summary>
 public sealed class RenderGraph : IDisposable
 {
-    private readonly IResourceManager _resourceManager;
+    private readonly ResourceManager _resourceManager;
     private readonly IResourceAllocator _resourceAllocator;
     private readonly IResourceDatabase _resourceDatabase;
 
@@ -37,7 +37,7 @@ public sealed class RenderGraph : IDisposable
 
     public RenderGraphBlackboard Blackboard => _blackboard;
 
-    public RenderGraph(IResourceManager resourceManager, IResourceAllocator resourceAllocator, IResourceDatabase resourceDatabase, IPipelineLibrary pipelineLibrary, IShaderCompiler shaderCompiler)
+    public RenderGraph(ResourceManager resourceManager, IResourceAllocator resourceAllocator, IResourceDatabase resourceDatabase, IPipelineLibrary pipelineLibrary, IShaderCompiler shaderCompiler)
     {
         _resourceManager = resourceManager;
         _resourceAllocator = resourceAllocator;