chore: added improved message

lib/nexus_cqrs/auth/auth.rb

@@ -24,7 +24,10 @@ module NexusCqrs
       global_permissions = message.metadata[:global_permissions]
 
       # Raise issue if policy class doesn't exist
-      raise Pundit::NotAuthorizedError, query: query, record: record if policy_class.nil?
+      raise Pundit::NotAuthorizedError,
+            query: query,
+            record: record,
+            message: "There is no policy class available for #{record.class}" if policy_class.nil?
 
       # Instantiate new policy class, with context
       policy = policy_class.new(UserContext.new(user, global_permissions), record)