pastilhas
04371a9d99
The panel-close signal (§5.1) was going to be a before/after diff of the layout tree — the todo
document says so. It cannot be. `movePanel` inserts through `newPanelFrom`, which mints a fresh
`uid()`, so a dragged panel's id is gone from the new tree while its app is still on screen; and
`swapPanels` exchanges `{appType, config}` between two ids that both stay put, so a swap reads as
two closes and two opens. Everything downstream of a close signal is destructive — a pty killed, a
session released — so a mechanism that fires on a rearrangement is worse than none.
Two tests, no production change. The signal has to be raised where the intent is known, at
`WorkspaceView`'s `handleRemove`/`handleSetApp` call sites.