test(sw): cover roving focus wrap and outside pointer dismissal

keyboard-dismiss.browser.mjs + fixtures/tool-group.tsx: end-point wrap, Home / End, disabled items and a pointerdown
outside that does not move focus, for the callers of the shared helpers (22 checks; same result before the refactor).

packages/sw/tests/fixtures/tool-group.tsx

@@ -0,0 +1,21 @@
+// Test-only host for keyboard-dismiss.browser.mjs (2026-10-20): SWToolGroup selection="single" has no current Story
+// (SW/Tool was removed in 7f42923). Public @hm-design/sw API only; the host owns the pressed option.
+import { useState } from "react"
+import { createRoot } from "react-dom/client"
+import { SWTheme, SWToolButton, SWToolGroup } from "@hm-design/sw"
+import "@hm-design/sw/styles.css"
+
+const OPTIONS = [{ id: "a", label: "모델" }, { id: "b", label: "배치" }, { id: "c", label: "단면", disabled: true }, { id: "d", label: "상세" }]
+
+function Host() {
+  const [selected, setSelected] = useState("b")
+  return (
+    <SWTheme data-tool-fixture="" data-selected={selected}>
+      <SWToolGroup label="보기" selection="single">
+        {OPTIONS.map(option => <SWToolButton key={option.id} data-option={option.id} pressed={selected === option.id} disabled={option.disabled} onClick={() => setSelected(option.id)}>{option.label}</SWToolButton>)}
+      </SWToolGroup>
+    </SWTheme>
+  )
+}
+
+createRoot(document.getElementById("root")!).render(<Host />)