Plan step 38: both examples move onto <x-grid> with <x-stack>
columns, x-data landing on the bound example's own stack.
TimepickerTest's Chromium selectors run against an isolated timeProbe
fixture, not this page, so nothing there is at risk.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9