What is Laravel job batching and how is it used in large-scale processing systems?

Job batching allows grouping multiple queue jobs together and tracking their collective progress.

Laravel job batching enables developers to dispatch multiple queue jobs as a single batch, providing lifecycle hooks such as then, catch, and finally. This is useful for large-scale workflows like data imports, image processing, or bulk notifications. Batches are stored in the database and tracked for progress and failure handling. It improves observability and reliability in distributed processing systems.