Update the six touched client package README pairs (slash menu ordering,
localized group titles and dismiss, permission label twin, goal pause,
plan hint localization, useAnchoredMaxHeight) and keep the owning agent
notes current: SlashSource.order and the MenuView dismiss/localize/clamp
face in the slash-pipeline note, the pause verb in the goal bar note.
A popup on a host command is not a second command — it is what that
command's BARE invocation does on this client. CommandContribution loses
hostBacked (contributions are pure client commands again; a host-name
collision fails loud, unchanged for /model), and the contract gains
CommandDecoration + command.decorate(): key = the HOST command name, no
catalog row, no claim participation. Dispatch consults decorations only on
the bare paths (menu pick / bare enter) after the host row resolves; space
and argued enter never see them — the two edges hostBacked had to guard
explicitly hold by construction in the decoration model. A decorated name
with no host row in the session's directory never fires (a decoration
cannot manufacture a command).
ui-permission switches register→decorate with zero behavior change
(options still read the permissions projection; a pick still submits
'/permission <preset>'). Specs rewrite to the decoration semantics: no
catalog row, bare-enter popup vs argued-enter host claim, space host
claim, no-host-row miss, unavailable fall-through, duplicate fail-loud.
Bare /permission now opens a flat popupSelect of presets (current value
active, custom excluded) instead of returning a text report — the /model
pattern on a single-level list. The new dsh-client-ui-permission package
registers the contribution; a pick submits '/permission <preset>' through
Session.command, so the picker, the composer chip, and the argued line all
write through the one host command and follow the one pushed projection
frame. Options and availability read the 'permissions' projection.
ui-command gains the hostBacked contribution mode: a same-named host
command is cooperation, not a collision — the host keeps the catalog row,
the argument claim (space and argued-enter fall through to the host path),
and the lifecycle logging, while the contribution supplies only the
bare-invocation popup. The /permission command handler keeps its bare-line
text report for host surfaces without a popup layer (TUI, raw execute).
