fix(test): isolate jsdom storage on Node 26

packages/client/ui-trajectory/tests/views.spec.tsx

@@ -35,9 +35,7 @@ afterEach(cleanup)
 // The chat store persists under its declared key; clear so one case's active
 // view cannot rehydrate into the next.
 beforeEach(() => {
-  // Node 22+ exposes an experimental localStorage global that is undefined
-  // without --localstorage-file; only clear when a real Storage is present.
-  if (typeof localStorage !== 'undefined') localStorage.clear()
+  localStorage.clear()
 })
 
 /** Node fixture: user prologue, two turns, one tool result inside turn 1. */