Restructure omni services and add Chatwoot research snapshot

research/chatwoot/spec/mailers/administrator_notifications/shared/smtp_config_shared.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+RSpec.shared_context 'with smtp config' do
+  before do
+    # We need to use allow_any_instance_of here because smtp_config_set_or_development?
+    # is defined in ApplicationMailer and needs to be stubbed for all mailer instances
+    # rubocop:disable RSpec/AnyInstance
+    allow_any_instance_of(ApplicationMailer).to receive(:smtp_config_set_or_development?).and_return(true)
+    # rubocop:enable RSpec/AnyInstance
+  end
+end