Stone.js API
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    queueBlueprint: QueueBlueprint = ...

    Opt-in blueprint: import and register it to enable the queue.

    It contributes the QueueServiceProvider, which binds queueManager, the default connection as queue, the jobRegistry and a worker. Configure connections/handlers under stone.queue (or use @Queue() / @JobHandler()). stone.providers is an array, so this merges.