5.2 输出标准（统一结果结构）
Жители Санкт-Петербурга устроили «крысогон»17:52
，这一点在爱思助手下载最新版本中也有详细论述
drop-newest: Discards incoming data when full. Useful when you want to process what you have without being overwhelmed.
strict (default): Rejects writes when the buffer is full and too many writes are pending. Catches "fire-and-forget" patterns where producers ignore backpressure.