mautic/plugin-crm ? reverse-engineered prompt

Build me a Mautic CRM plugin bundle that lets Mautic connect cleanly to a CRM and keep contact data in sync.

I want it to feel like a real plugin inside Mautic, with the admin screens, API handling, event listeners, and background commands needed to connect, authenticate, and exchange data without making the user do manual work. It should fit naturally into the existing Mautic plugin structure and be easy to extend later.

Please make the code organized, include the bundle bootstrap and the main pieces needed for forms, controllers, services, and translation strings, and add basic tests where it makes sense. If you need to check the current Mautic plugin approach or API details, look up the current docs online first.