feat(bindings): update C# wrappers for meshopt, nvtt, ufbx

Refactor and regenerate native C# bindings for Ghost.MeshOptimizer, Ghost.Nvtt, and Ghost.Ufbx to match updated native APIs and improve usability.
- Replace meshoptimizer.dll with newer version.
- Move meshoptimizer functions to static methods in partial class; add new meshlet, simplification, quantization features.
- Remove enum wrappers in favor of constants; delete meshopt_Allocator.cs.
- Regenerate native wrappers with PascalCase naming, XML doc comments, and aggressive inlining.
- Implement IDisposable for resource structs; update configs for naming, documentation, and method mapping.
- Update user code to use new wrapper classes and method names.
- Improve documentation and comments for clarity.

BREAKING CHANGE: API surface changes, wrapper class and method names updated, enum wrappers removed, custom allocator deleted.

src/ThridParty/Ghost.Ufbx/Wrapper/ufbx_mesh.nativegen.cs

@@ -2,22 +2,26 @@
 // This file is generated by Ghost.NativeWrapperGen. Do not edit manually.
 // </auto-generated>
 
-using System.Runtime.CompilerServices;
-
 namespace Ghost.Ufbx;
 
-public unsafe partial struct ufbx_mesh
+public unsafe partial struct ufbx_mesh : System.IDisposable
 {
-    // From: ufbx_find_face_index(ufbx_mesh*, nuint)
-    public uint find_face_index(nuint index)
+    /// <summary>
+    /// From: <see cref="Api.ufbx_find_face_index(ufbx_mesh*, nuint)" />
+    /// </summary>
+    [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
+    public uint FindFaceIndex(nuint index)
     {
         return Api.ufbx_find_face_index(
             (ufbx_mesh*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
             index);
     }
 
-    // From: ufbx_compute_topology(ufbx_mesh*, ufbx_topo_edge*, nuint)
-    public void compute_topology(ufbx_topo_edge* topo, nuint num_topo)
+    /// <summary>
+    /// From: <see cref="Api.ufbx_compute_topology(ufbx_mesh*, ufbx_topo_edge*, nuint)" />
+    /// </summary>
+    [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
+    public void ComputeTopology(ufbx_topo_edge* topo, nuint num_topo)
     {
         Api.ufbx_compute_topology(
             (ufbx_mesh*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
@@ -25,8 +29,11 @@ public unsafe partial struct ufbx_mesh
             num_topo);
     }
 
-    // From: ufbx_generate_normal_mapping(ufbx_mesh*, ufbx_topo_edge*, nuint, uint*, nuint, bool)
-    public nuint generate_normal_mapping(ufbx_topo_edge* topo, nuint num_topo, uint* normal_indices, nuint num_normal_indices, bool assume_smooth)
+    /// <summary>
+    /// From: <see cref="Api.ufbx_generate_normal_mapping(ufbx_mesh*, ufbx_topo_edge*, nuint, uint*, nuint, bool)" />
+    /// </summary>
+    [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
+    public nuint GenerateNormalMapping(ufbx_topo_edge* topo, nuint num_topo, uint* normal_indices, nuint num_normal_indices, bool assume_smooth)
     {
         return Api.ufbx_generate_normal_mapping(
             (ufbx_mesh*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
@@ -37,8 +44,11 @@ public unsafe partial struct ufbx_mesh
             assume_smooth);
     }
 
-    // From: ufbx_compute_normals(ufbx_mesh*, ufbx_vertex_vec3*, uint*, nuint, Misaki.HighPerformance.Mathematics.float3*, nuint)
-    public void compute_normals(ufbx_vertex_vec3* positions, uint* normal_indices, nuint num_normal_indices, Misaki.HighPerformance.Mathematics.float3* normals, nuint num_normals)
+    /// <summary>
+    /// From: <see cref="Api.ufbx_compute_normals(ufbx_mesh*, ufbx_vertex_vec3*, uint*, nuint, Misaki.HighPerformance.Mathematics.float3*, nuint)" />
+    /// </summary>
+    [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
+    public void ComputeNormals(ufbx_vertex_vec3* positions, uint* normal_indices, nuint num_normal_indices, Misaki.HighPerformance.Mathematics.float3* normals, nuint num_normals)
     {
         Api.ufbx_compute_normals(
             (ufbx_mesh*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
@@ -49,8 +59,11 @@ public unsafe partial struct ufbx_mesh
             num_normals);
     }
 
-    // From: ufbx_subdivide_mesh(ufbx_mesh*, nuint, ufbx_subdivide_opts*, ufbx_error*)
-    public ufbx_mesh* subdivide(nuint level, ufbx_subdivide_opts* opts, ufbx_error* error)
+    /// <summary>
+    /// From: <see cref="Api.ufbx_subdivide_mesh(ufbx_mesh*, nuint, ufbx_subdivide_opts*, ufbx_error*)" />
+    /// </summary>
+    [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
+    public ufbx_mesh* Subdivide(nuint level, ufbx_subdivide_opts* opts, ufbx_error* error)
     {
         return Api.ufbx_subdivide_mesh(
             (ufbx_mesh*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
@@ -59,14 +72,20 @@ public unsafe partial struct ufbx_mesh
             error);
     }
 
-    // From: ufbx_free_mesh(ufbx_mesh*)
-    public void free()
+    /// <summary>
+    /// From: <see cref="Api.ufbx_free_mesh(ufbx_mesh*)" />
+    /// </summary>
+    [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
+    public void Dispose()
     {
         Api.ufbx_free_mesh((ufbx_mesh*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this));
     }
 
-    // From: ufbx_retain_mesh(ufbx_mesh*)
-    public void retain()
+    /// <summary>
+    /// From: <see cref="Api.ufbx_retain_mesh(ufbx_mesh*)" />
+    /// </summary>
+    [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
+    public void Retain()
     {
         Api.ufbx_retain_mesh((ufbx_mesh*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this));
     }