路由的核心任务是：给定「来自 WhatsApp 商务号、发自联系人 Alice 的消息」，找到或创建对应的 AI 会话。
This kind of test is also more business-oriented, because they focus on testing external, visible behaviors (so it’s kind of “BDD in code”). You don’t have to think about internal implementation details anymore. In most cases, you don’t even need mocks, it’s enough to use hand-written Test Doubles/Fakes/Stubs (e.g. an in-memory list that simulates a database, fake time provider, etc) (tests with Fakes are much cleaner).，更多细节参见搜狗输入法2026
消息称《GTA 6》发布日期不会再跳票，推荐阅读体育直播获取更多信息
FirstFT: the day's biggest stories。体育直播是该领域的重要参考