Restructure omni services and add Chatwoot research snapshot

research/chatwoot/spec/services/contacts/bulk_action_service_spec.rb

@@ -0,0 +1,38 @@
+require 'rails_helper'
+
+RSpec.describe Contacts::BulkActionService do
+  subject(:service) { described_class.new(account: account, user: user, params: params) }
+
+  let(:account) { create(:account) }
+  let(:user) { create(:user, account: account) }
+
+  describe '#perform' do
+    context 'when delete action is requested via action_name' do
+      let(:params) { { ids: [1, 2], action_name: 'delete' } }
+
+      it 'delegates to the bulk delete service' do
+        bulk_delete_service = instance_double(Contacts::BulkDeleteService, perform: true)
+
+        expect(Contacts::BulkDeleteService).to receive(:new)
+          .with(account: account, contact_ids: [1, 2])
+          .and_return(bulk_delete_service)
+
+        service.perform
+      end
+    end
+
+    context 'when labels are provided' do
+      let(:params) { { ids: [10, 20], labels: { add: %w[vip support] }, extra: 'ignored' } }
+
+      it 'delegates to the bulk assign labels service with permitted params' do
+        bulk_assign_service = instance_double(Contacts::BulkAssignLabelsService, perform: true)
+
+        expect(Contacts::BulkAssignLabelsService).to receive(:new)
+          .with(account: account, contact_ids: [10, 20], labels: %w[vip support])
+          .and_return(bulk_assign_service)
+
+        service.perform
+      end
+    end
+  end
+end