Translate code comments and admin strings to English

spec/dummy/app/models/test_owner.rb

@@ -1,3 +1,3 @@
-# Csak a dummy app tesztjeihez: az ApplicationToken owner szerepét tölti be.
+# Test-only: plays the ApplicationToken owner role in the dummy app.
 class TestOwner < ActiveRecord::Base
 end

spec/dummy/db/migrate/20260805000002_create_test_owners.rb

@@ -1,4 +1,4 @@
-# Csak a tesztekhez: az ApplicationToken owner-e (a hostban ez pl. AdminUser).
+# Test-only: plays the ApplicationToken owner role (AdminUser in the host).
 class CreateTestOwners < ActiveRecord::Migration[8.1]
   def change
     create_table :test_owners, id: { type: :bigint, unsigned: true },

spec/factories/application_tokens.rb

@@ -1,5 +1,5 @@
-# A TestOwner csak a dummy appban létezik — host-oldali használatnál az owner-t
-# felül kell írni (pl. owner: create(:admin_user)).
+# TestOwner exists only in the dummy app — host-side usage must override the
+# owner (e.g. owner: create(:admin_user)).
 FactoryBot.define do
   factory :test_owner, class: "TestOwner" do
     name { "test owner" }