What is Notifiable models in Laravel, and what role does it play in a real application?

What is Notifiable models in Laravel, and what role does it play in a real application? In Laravel, notifiable models should be understood as part of a larger application architecture rather than as an isolated API call. A model implementing the required notification contract can receive notifications through configured channels. A strong understanding includes its purpose, the layer where it belongs, the data or request flow it affects, and the situations where another mechanism may be more appropriate. Practical context: Laravel notifications provide a common abstraction for sending user messages through supported channels such as mail and database storage. The specific focus here is notifiable models: A model implementing the required notification contract can receive notifications through configured channels. This question is designed to test not only terminology, but also how the concept fits into Laravel's request, application, database, security, or deployment workflow.