[BUG] Title: Widget context menu — "Download file" and "Copy to clipboard" don't work

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

When clicking the "..." menu on a rendered widget (SVG or HTML),
the "Download file" and "Copy to clipboard" options appear but do nothing.
No download is triggered, no content is copied to clipboard.

What Should Happen?

Claude code app

Error Messages/Logs

- "Download file" → should download the SVG/HTML file
- "Copy to clipboard" → should copy the widget source code to clipboard

Steps to Reproduce

1. Ask Claude to generate a visual widget (SVG diagram or HTML widget)
2. Hover over the rendered widget
3. Click the "..." (three dots) menu in the top-right corner
4. Click "Download file" or "Copy to clipboard"
5. Nothing happens

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

laste version

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Manually saving the widget content as a file via Claude Code itself.