feat: Business hours

Data models and APIs for business hours

ref: #234

spec/services/message_templates/template/out_of_office_spec.rb

@@ -0,0 +1,13 @@
+require 'rails_helper'
+
+describe ::MessageTemplates::Template::OutOfOffice do
+  context 'when this hook is called' do
+    let(:conversation) { create(:conversation) }
+
+    it 'creates the out of office messages' do
+      described_class.new(conversation: conversation).perform
+      expect(conversation.messages.template.count).to eq(1)
+      expect(conversation.messages.template.first.content).to eq(conversation.inbox.out_of_office_message)
+    end
+  end
+end