chore: Update Help Center APIs to accomodate locale (#4515)

app/models/kbase/category.rb

@@ -4,6 +4,7 @@
 #
 #  id          :bigint           not null, primary key
 #  description :text
+#  locale      :string           default("en")
 #  name        :string
 #  position    :integer
 #  created_at  :datetime         not null
@@ -11,6 +12,10 @@
 #  account_id  :integer          not null
 #  portal_id   :integer          not null
 #
+# Indexes
+#
+#  index_kbase_categories_on_locale_and_account_id  (locale,account_id)
+#
 class Kbase::Category < ApplicationRecord
   belongs_to :account
   belongs_to :portal

app/models/kbase/portal.rb

@@ -3,8 +3,8 @@
 # Table name: kbase_portals
 #
 #  id            :bigint           not null, primary key
-#  account_id    :integer          not null
 #  color         :string
+#  config        :jsonb
 #  custom_domain :string
 #  header_text   :text
 #  homepage_link :string
@@ -13,6 +13,7 @@
 #  slug          :string           not null
 #  created_at    :datetime         not null
 #  updated_at    :datetime         not null
+#  account_id    :integer          not null
 #
 # Indexes
 #
@@ -26,5 +27,5 @@ class Kbase::Portal < ApplicationRecord
 
   validates :account_id, presence: true
   validates :name, presence: true
-  validates :slug, presence: true
+  validates :slug, presence: true, uniqueness: true
 end