请问coze是如何实现中断恢复的？

coze的工作流对应的图模型应该是DAG，执行时应该是从start节点顺序执行的。
那coze是如何实现中断恢复的？是阻塞式的吗？

The issue mentions no files, tests, or entry points. Start by locating the workflow execution and interruption-recovery implementation, then document whether execution is blocking and how a DAG resumes; completion would require a clear explanation grounded in the relevant source.

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