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-primitives/tests/icons.spec.tsx

@@ -14,8 +14,8 @@ const icons = Object.fromEntries(
 const iconNames = Object.keys(icons)
 
 describe('ic_ds_ icon set', () => {
-  it('exports the full P-I set (43 deepsuite + 13 figma extracts + the hand-authored sparkle)', () => {
-    expect(iconNames.length).toBe(57)
+  it('exports the full P-I set (44 deepsuite + 13 figma extracts + the hand-authored sparkle)', () => {
+    expect(iconNames.length).toBe(58)
   })
 
   it.each(iconNames)('%s renders an svg with currentColor fills and no hardcoded palette', (name) => {