fix: zone create/delete didn't require edit mode

see #144

server/src/zone/zonelist.cpp

@@ -43,10 +43,14 @@ ZoneList::ZoneList(Object& _parent, std::string_view parentPropertyName)
         deleteMethodHandler(zone);
       }}
 {
+  const bool editable = contains(getWorld(parent()).state.value(), WorldState::Edit);
+
   Attributes::addDisplayName(create, DisplayName::List::create);
+  Attributes::addEnabled(create, editable);
   m_interfaceItems.add(create);
 
   Attributes::addDisplayName(delete_, DisplayName::List::delete_);
+  Attributes::addEnabled(delete_, editable);
   m_interfaceItems.add(delete_);
 }
 
@@ -55,6 +59,16 @@ TableModelPtr ZoneList::getModel()
   return std::make_shared<ZoneListTableModel>(*this);
 }
 
+void ZoneList::worldEvent(WorldState state, WorldEvent event)
+{
+  ObjectList<Zone>::worldEvent(state, event);
+
+  const bool editable = contains(state, WorldState::Edit);
+
+  Attributes::setEnabled(create, editable);
+  Attributes::setEnabled(delete_, editable);
+}
+
 bool ZoneList::isListedProperty(std::string_view name)
 {
   return ZoneListTableModel::isListedProperty(name);

server/src/zone/zonelist.hpp

@@ -33,6 +33,7 @@ class ZoneList : public ObjectList<Zone>
   CLASS_ID("list.zone")
 
 protected:
+  void worldEvent(WorldState state, WorldEvent event) final;
   bool isListedProperty(std::string_view name) final;
 
 public: