feat(client): localize composer hints and rework input command interaction

Unify the /plan claimed hint with the plan placeholder through a locale
namespace, localize slash menu group titles, replace the PermissionSelect
native select with the Menu primitive, add a goal pause verb chain, clamp
anchored popups to the viewport with scroll-into-view and outside-dismiss,
and fix onPasteUpgrade insertedRange to account for the chip trailing gap.

packages/client/ui-slash/tsconfig.json

@@ -11,9 +11,15 @@
     {
       "path": "../../../vendor/cordis"
     },
+    {
+      "path": "../locale"
+    },
     {
       "path": "../runtime"
     },
+    {
+      "path": "../ui-primitives"
+    },
     {
       "path": "../ui-slots"
     },