feat(nativegen)!: refactor to struct-based native wrappers

Major overhaul of native wrapper generation for ufbx and nvtt.
Replaces all hand-written and class-based wrappers with auto-generated partial struct wrappers that directly expose native API methods via pointers. Introduces a new JSON-driven configuration system using "remaps" and "actions" for flexible parameter/return mapping and method routing. Removes legacy config sections and helper classes, focusing solely on method wrappers. Updates all usages and tests to use the new pointer-based API. Cleans up obsolete code and ensures resource management is handled via struct Dispose methods. The result is a thinner, more direct, and maintainable interop layer.

BREAKING CHANGE: All managed wrapper classes and helpers are removed in favor of struct-based pointer wrappers. API usage and resource management patterns have changed.

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

@@ -0,0 +1,133 @@
+// <auto-generated>
+// 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_anim
+{
+    // From: ufbx_evaluate_prop_len(ufbx_anim*, ufbx_element*, sbyte*, nuint, double)
+    public ufbx_prop evaluate_prop_len(ufbx_element* element, ReadOnlySpan<byte> name, double time)
+    {
+        fixed (byte* pname = name)
+        {
+            return Api.ufbx_evaluate_prop_len(
+                (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+                element,
+                (sbyte*)pname,
+                (nuint)name.Length,
+                time);
+        }
+    }
+
+    // From: ufbx_evaluate_prop(ufbx_anim*, ufbx_element*, sbyte*, double)
+    public ufbx_prop evaluate_prop(ufbx_element* element, sbyte* name, double time)
+    {
+        return Api.ufbx_evaluate_prop(
+            (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+            element,
+            name,
+            time);
+    }
+
+    // From: ufbx_evaluate_prop_flags_len(ufbx_anim*, ufbx_element*, sbyte*, nuint, double, uint)
+    public ufbx_prop evaluate_prop_flags_len(ufbx_element* element, ReadOnlySpan<byte> name, double time, uint flags)
+    {
+        fixed (byte* pname = name)
+        {
+            return Api.ufbx_evaluate_prop_flags_len(
+                (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+                element,
+                (sbyte*)pname,
+                (nuint)name.Length,
+                time,
+                flags);
+        }
+    }
+
+    // From: ufbx_evaluate_prop_flags(ufbx_anim*, ufbx_element*, sbyte*, double, uint)
+    public ufbx_prop evaluate_prop_flags(ufbx_element* element, sbyte* name, double time, uint flags)
+    {
+        return Api.ufbx_evaluate_prop_flags(
+            (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+            element,
+            name,
+            time,
+            flags);
+    }
+
+    // From: ufbx_evaluate_props(ufbx_anim*, ufbx_element*, double, ufbx_prop*, nuint)
+    public ufbx_props evaluate_props(ufbx_element* element, double time, ufbx_prop* buffer, nuint buffer_size)
+    {
+        return Api.ufbx_evaluate_props(
+            (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+            element,
+            time,
+            buffer,
+            buffer_size);
+    }
+
+    // From: ufbx_evaluate_props_flags(ufbx_anim*, ufbx_element*, double, ufbx_prop*, nuint, uint)
+    public ufbx_props evaluate_props_flags(ufbx_element* element, double time, ufbx_prop* buffer, nuint buffer_size, uint flags)
+    {
+        return Api.ufbx_evaluate_props_flags(
+            (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+            element,
+            time,
+            buffer,
+            buffer_size,
+            flags);
+    }
+
+    // From: ufbx_evaluate_transform(ufbx_anim*, ufbx_node*, double)
+    public ufbx_transform evaluate_transform(ufbx_node* node, double time)
+    {
+        return Api.ufbx_evaluate_transform(
+            (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+            node,
+            time);
+    }
+
+    // From: ufbx_evaluate_transform_flags(ufbx_anim*, ufbx_node*, double, uint)
+    public ufbx_transform evaluate_transform_flags(ufbx_node* node, double time, uint flags)
+    {
+        return Api.ufbx_evaluate_transform_flags(
+            (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+            node,
+            time,
+            flags);
+    }
+
+    // From: ufbx_evaluate_blend_weight(ufbx_anim*, ufbx_blend_channel*, double)
+    public float evaluate_blend_weight(ufbx_blend_channel* channel, double time)
+    {
+        return Api.ufbx_evaluate_blend_weight(
+            (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+            channel,
+            time);
+    }
+
+    // From: ufbx_evaluate_blend_weight_flags(ufbx_anim*, ufbx_blend_channel*, double, uint)
+    public float evaluate_blend_weight_flags(ufbx_blend_channel* channel, double time, uint flags)
+    {
+        return Api.ufbx_evaluate_blend_weight_flags(
+            (ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this),
+            channel,
+            time,
+            flags);
+    }
+
+    // From: ufbx_free_anim(ufbx_anim*)
+    public void free()
+    {
+        Api.ufbx_free_anim((ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this));
+    }
+
+    // From: ufbx_retain_anim(ufbx_anim*)
+    public void retain()
+    {
+        Api.ufbx_retain_anim((ufbx_anim*)System.Runtime.CompilerServices.Unsafe.AsPointer(ref this));
+    }
+}