add a badge icon to the enterprise feture menu item

lib/redmine/menu_manager/menu_helper.rb

@@ -170,6 +170,9 @@ module Redmine::MenuManager::MenuHelper
                              lang: menu_item_locale(item)) do
       ''.html_safe + caption + badge_for(item)
     end
+    if item.enterprise_feature.present? && !EnterpriseToken.allows_to?(item.enterprise_feature) && !EnterpriseToken.current
+      link_text << (' '.html_safe + spot_icon('spot-icon spot-icon_enterprise-badge'))
+    end
     link_text << (' '.html_safe + op_icon(item.icon_after)) if item.icon_after.present?
     html_options = item.html_options(selected:)
     html_options[:title] ||= selected ? t(:description_current_position) + caption : caption

lib/redmine/menu_manager/menu_item.rb

@@ -37,7 +37,8 @@ class Redmine::MenuManager::MenuItem < Redmine::MenuManager::TreeNode
               :child_menus,
               :last,
               :partial,
-              :engine
+              :engine,
+              :enterprise_feature
 
   def initialize(name, url, options)
     raise ArgumentError, "Invalid option :if for menu item '#{name}'" if options[:if] && !options[:if].respond_to?(:call)
@@ -55,6 +56,7 @@ class Redmine::MenuManager::MenuItem < Redmine::MenuManager::TreeNode
     @param = options[:param] || :project_id
     @icon = options[:icon]
     @icon_after = options[:icon_after]
+    @enterprise_feature = options[:enterprise_feature]
     @caption = options[:caption]
     @context = options[:context]
     @html_options = options[:html].nil? ? {} : options[:html].dup