feat: allow feature plan map in super admin (#9318)

- Add subscribed_features method in models/enterprise/account and include it in the JSON response

enterprise/app/models/enterprise/account.rb

@@ -6,8 +6,19 @@ module Enterprise::Account
     }
   end
 
+  def subscribed_features
+    plan_features = InstallationConfig.find_by(name: 'CHATWOOT_CLOUD_PLAN_FEATURES')&.value
+    return [] if plan_features.blank?
+
+    plan_features[plan_name]
+  end
+
   private
 
+  def plan_name
+    custom_attributes['plan_name']
+  end
+
   def agent_limits
     subscribed_quantity = custom_attributes['subscribed_quantity']
     subscribed_quantity || get_limits(:agents)