refactor: improve Geant4 solid synchronization and update documentation for VTK integration

src/Vtk/HEP/Geant/vtkBoxSolid.cpp

@@ -40,13 +40,15 @@ BoxSolid::~BoxSolid() {
 
 void BoxSolid::Update() {
   ConnectionBlock blocker(m_UpdateConnection);
-  this->UpdateGeometry();
-  // Ensure base Prop3D properties (color, opacity, etc) and transform are applied
+  // Ensure base GeantSolid logic (G4Polyhedron and Transform) runs
+  this->GeantSolid::Update();
+  // Ensure base Prop3D properties (color, opacity, etc) are applied
   this->Prop3D::Update();
 }
 
 void BoxSolid::SyncFromVtk() {
   this->Prop3D::SyncFromVtk();
+  
   if (auto* proxy = vtkProp3D::SafeDownCast(this->GetProxyProp())) {
       if (vtkMatrix4x4* mat = proxy->GetUserMatrix()) {
           m_BoxContent->SetTransform(VtkToMatrix4f(mat));
@@ -54,16 +56,6 @@ void BoxSolid::SyncFromVtk() {
   }
 }
 
-void BoxSolid::UpdateGeometry() {
-  // Sync geometry from G4VSolid provided by GeantSolid (tessellation)
-  GeantSolid::UpdateGeometry();
-}
-
-void BoxSolid::UpdateTransform() {
-  // Take transform from Prop3D base (which uses GetContent() -> ContainerBox TRS)
-  this->Prop3D::Update();
-}
-
 void BoxSolid::serialize_display(uLib::Archive::display_properties_archive &ar,
                                     const unsigned int version) {
   // Expose Geant solid properties and underlying Box/TRS properties

src/Vtk/HEP/Geant/vtkBoxSolid.h

@@ -49,8 +49,6 @@ public:
   virtual ~BoxSolid();
 
   virtual void Update() override;
-  virtual void UpdateGeometry() override;
-  virtual void UpdateTransform() override;
   virtual void SyncFromVtk() override;
 
   virtual uLib::Object *GetContent() const override {