a layout stores appType STRINGS. rename a panel key between versions and every saved layout still names
the old one; normalizeLayout swaps each unknown appType for allowed[0] — whichever panel the plugin lists
first — and WorkspaceView persists the repair.
so renaming headscale-* to offscale-* rewrote the owner's layout into three copies of the server picker
and saved it. ServersView never mounted, there was no register form on the page at all, and it survived a
server restart, a sidecar restart and a plugin reinstall because nothing on disk was wrong. found by
counting elements in a real browser: 3 links, 0 buttons.
install is the only place that knows a plugin's panels may have just changed shape, so that is where the
stale row dies — for every user, since the damage is not per-user and install is owner-only. nothing is
lost: a plugin screen is locked, so the layout is the author's design rather than someone's arrangement,
and useDashboardState re-seeds from defaultLayout on the next load.
does NOT fix the underlying trap: renaming a panel key is still a silent data migration for any screen
that is not a plugin. see TODO.
pastilhas
ed3806f998