Add ability to translate server rules (#34494)

app/models/rule_translation.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: rule_translations
+#
+#  id         :bigint(8)        not null, primary key
+#  hint       :text             default(""), not null
+#  language   :string           not null
+#  text       :text             default(""), not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  rule_id    :bigint(8)        not null
+#
+class RuleTranslation < ApplicationRecord
+  belongs_to :rule
+
+  validates :language, presence: true, uniqueness: { scope: :rule_id }
+  validates :text, presence: true, length: { maximum: Rule::TEXT_SIZE_LIMIT }
+end