[Preview] Full URL no longer shown in Preview toolbar — truncated, requires click to expand

Platform: Windows 11
Claude Code version: 2.1.138

What changed:
The Preview pane in Claude Code used to display the full URL of the page currently being previewed directly in the toolbar (the address bar area above the rendered page). After a recent update the URL is truncated and requires a click to expand and read the full string. This happens regardless of window width — even at 1900+ px wide the URL is collapsed by default.

Expected:
Show the full URL in the toolbar as before. Truncate only when the URL genuinely doesn't fit in the available width.

Actual:
URL always truncated; a click is required to see it.

Impact:
When reviewing what the agent navigated to (debugging routes, verifying redirects, confirming a deploy URL), the full URL needs to be visible at a glance. Forcing a click on every check breaks the loop.

Possibly related: #57844 — the viewport toggle buttons are also missing in the same toolbar. Both look like the same UI regression.