What is Deadlock retry in Laravel, and what role does it play in a real application?

What is Deadlock retry in Laravel, and what role does it play in a real application? In Laravel, deadlock retry should be understood as part of a larger application architecture rather than as an isolated API call. Highly concurrent systems may encounter deadlocks, and Laravel database workflows can be designed to retry carefully when appropriate. 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: Database transactions allow multiple related database operations to commit together or roll back together when an operation fails. The specific focus here is deadlock retry: Highly concurrent systems may encounter deadlocks, and Laravel database workflows can be designed to retry carefully when appropriate. 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.