What is Token mismatch handling in Laravel, and what role does it play in a real application?

What is Token mismatch handling in Laravel, and what role does it play in a real application? In Laravel, token mismatch handling should be understood as part of a larger application architecture rather than as an isolated API call. A request with an invalid or missing token can be rejected by Laravel's CSRF middleware. 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's web middleware includes CSRF protections for state-changing requests by requiring an expected token in supported form workflows. The specific focus here is token mismatch handling: A request with an invalid or missing token can be rejected by Laravel's CSRF middleware. 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.