Refactor component registration, update deps, improve JSON

- Updated Misaki.HighPerformance package versions in Core and Graphics projects.
- Added IsTrimmable to Ghost.Engine.csproj for trimming support.
- Renamed GetOrRegisterComponent to GetOrRegisterComponentID and updated all usages.
- Component registration codegen now uses a static class with [ModuleInitializer], no longer requires [EngineEntry].
- Improved JSON serialization: added string support, introduced Utf8JsonObjectScope/ArrayScope, and new extension methods for cleaner JSON writing.
- Removed [SkipLocalsInit] from Hierarchy and LocalToWorld.
- Fixed Entity.Invalid to use INVALID_ID for both fields.
- Minor cleanup: clarified comments, reorganized Ghost.Generator in solution, and disabled component serialization generator.

Ghost.Engine/Components/Hierarchy.cs

@@ -4,7 +4,6 @@ using System.Runtime.CompilerServices;
 
 namespace Ghost.Engine.Components;
 
-[SkipLocalsInit]
 [HideEditor]
 public struct Hierarchy : IComponent
 {

Ghost.Engine/Components/LocalToWorld.cs

@@ -1,10 +1,8 @@
 using Ghost.Entities;
 using Misaki.HighPerformance.Mathematics;
-using System.Runtime.CompilerServices;
 
 namespace Ghost.Engine.Components;
 
-[SkipLocalsInit]
 public struct LocalToWorld : IComponent
 {
     public float4x4 matrix;

Ghost.Engine/EngineCore.cs

@@ -40,8 +40,7 @@ public static partial class EngineCore
     {
         s_impl = new EngineCoreImpl();
 
-        ComponentRegistry.GetOrRegisterComponent<ManagedEntityRef>();
-        RegisterIComponentTypes();
+        ComponentRegistry.GetOrRegisterComponentID<ManagedEntityRef>();
     }
 
     internal static void Init()

Ghost.Engine/Ghost.Engine.csproj

@@ -9,10 +9,12 @@
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
     <IsAotCompatible>True</IsAotCompatible>
+    <IsTrimmable>True</IsTrimmable>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <IsAotCompatible>True</IsAotCompatible>
+    <IsTrimmable>True</IsTrimmable>
   </PropertyGroup>
 
   <ItemGroup>

Ghost.Engine/Utilities/Utf8JsonWriterExtension.cs

@@ -2,6 +2,34 @@ using System.Text.Json;
 
 namespace Ghost.Engine.Utilities;
 
+public readonly ref struct Utf8JsonObjectScope : IDisposable
+{
+    private readonly Utf8JsonWriter _writer;
+    public Utf8JsonObjectScope(Utf8JsonWriter writer)
+    {
+        _writer = writer;
+        _writer.WriteStartObject();
+    }
+    public void Dispose()
+    {
+        _writer.WriteEndObject();
+    }
+}
+
+public readonly ref struct Utf8JsonArrayScope : IDisposable
+{
+    private readonly Utf8JsonWriter _writer;
+    public Utf8JsonArrayScope(Utf8JsonWriter writer)
+    {
+        _writer = writer;
+        _writer.WriteStartArray();
+    }
+    public void Dispose()
+    {
+        _writer.WriteEndArray();
+    }
+}
+
 public static class Utf8JsonWriterExtension
 {
     public static void WriteArray<T>(this Utf8JsonWriter writer, ReadOnlySpan<char> name, IEnumerable<T> source, Action<T> writeAction)
@@ -37,4 +65,14 @@ public static class Utf8JsonWriterExtension
         writeAction();
         writer.WriteEndObject();
     }
+
+    public static Utf8JsonObjectScope StartObjectScope(this Utf8JsonWriter writer)
+    {
+        return new Utf8JsonObjectScope(writer);
+    }
+
+    public static Utf8JsonArrayScope StartArrayScope(this Utf8JsonWriter writer)
+    {
+        return new Utf8JsonArrayScope(writer);
+    }
 }