feat: add mesh component editors and scene hierarchy serialization

engine/src/Components/GameObject.cpp

@@ -30,7 +30,6 @@ GameObject::GameObject(const std::string& name)
 }
 
 GameObject::~GameObject() {
-    GetGlobalRegistry().erase(m_id);
     if (m_transform) {
         delete m_transform;
         m_transform = nullptr;
@@ -39,8 +38,10 @@ GameObject::~GameObject() {
 }
 
 std::unordered_map<GameObject::ID, GameObject*>& GameObject::GetGlobalRegistry() {
-    static std::unordered_map<ID, GameObject*> registry;
-    return registry;
+    // Keep the registry alive until process teardown to avoid static destruction
+    // order issues when GameObject instances are released from other singletons.
+    static auto* registry = new std::unordered_map<ID, GameObject*>();
+    return *registry;
 }
 
 void GameObject::NotifyComponentsBecameActive() {