fix some on properties and signal connection

src/Core/Object.cpp

@@ -88,6 +88,16 @@ const std::vector<PropertyBase*>& Object::GetProperties() const {
     return d->m_Properties;
 }
 
+PropertyBase* Object::GetProperty(const std::string& name) const {
+    for (auto* p : d->m_Properties) {
+        if (p->GetName() == name) return p;
+    }
+    for (auto* p : d->m_DynamicProperties) {
+        if (p->GetName() == name) return p;
+    }
+    return nullptr;
+}
+
 // In Object.h, the template serialize needs to be updated to call property serialization.
 // However, since Object::serialize is a template in the header, we might need a helper here.