feat(tui): add clickable URLs and file paths in tool output

[brendandebeasi]

Issue for this PR

Not linked to a specific issue — wanted file paths and URLs in tool output to be clickable.

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Makes file paths and URLs clickable in TUI tool output using OSC8 hyperlinks.

Added a TextWithLinks component that parses text for URLs and file paths and renders them as <a> tags (which opentui renders as OSC8 hyperlinks). Added FilePathLink for converting paths to file:// URLs. Refactored the existing Link component to use native <a> tags instead of onMouseUp + open().

Wired it into the tool renderers — Read, Write, Edit, Glob, Grep, List now show clickable file paths. Bash output passes through TextWithLinks so URLs and paths there are clickable too. BlockTool title prop now accepts JSX so tool headers can contain links.

How did you verify your code works?

• All 1179 existing tests pass (bun test --timeout 30000)
• Manually tested in iTerm2 and kitty — file paths open in editor, URLs open in browser

Screenshots / recordings

N/A — terminal feature, hard to screenshot OSC8 links. Clicking Read src/foo.ts in tool output opens the file.

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

I found a potentially related PR:

PR #7280: feat: add OSC8 hyperlink support for clickable file paths and URLs

This appears to be addressing the same feature — adding OSC8 hyperlink support for clickable file paths and URLs in the TUI. It may have been a previous attempt or related work that should be reviewed for potential overlap or reuse.

[github-actions]

Thanks for updating your PR! It now meets our contributing guidelines. 👍

[brendandebeasi]

Hey @thdxr @adamdotdevin — would love to get your eyes on this when you get a chance. This makes file paths and URLs clickable throughout the TUI (Read, Write, Edit, Bash output, etc.) via OSC8 hyperlinks. It's a small quality-of-life improvement that makes navigating tool output a lot faster. Happy to address any feedback!