Conflicts resolved:
- config/locales/en.yml — kept the new
conversations.messages.voice_call.{twilio,whatsapp} keys this branch added.
- enterprise/app/services/enterprise/whatsapp/providers/whatsapp_cloud_service.rb
— kept this branch's calls_phone_id_path helper that pins to
WHATSAPP_API_VERSION (v22) for the Calls API endpoints. Develop's version
from PR #14312 used the OSS phone_id_path (v13) which doesn't support the
Calls API.