feat: Add article messages along with bot responses (#7993)

ref: https://linear.app/chatwoot/issue/CW-2464/bot-should-also-return-links-to-the-information

spec/factories/response.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :response do
+    response_document
+    response_source
+    question { Faker::Lorem.sentence }
+    answer { Faker::Lorem.paragraph }
+    account
+  end
+end

spec/factories/response_document.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :response_document do
+    response_source
+    content { Faker::Lorem.paragraph }
+    document_link { Faker::Internet.url }
+    account
+  end
+end