fix(windows): normalize backslash paths to posix in tool titles/patterns

[tobias-weiss-ai-xr]

Closes #22189

Issue for this PR Closes # ### Type of change - [x] Bug fix ### What does this PR do? On Windows, tool calls like file search or grep receive paths with backslashes (e.g. src\foo\bar.ts), but internal patterns and titles use forward slashes. This mismatch causes tool invocations to silently fail since glob patterns don't match backslash paths. The fix normalizes backslash paths to forward slashes in tool titles and pattern arguments before they reach the tool execution layer. This only affects the path strings passed to tools, not the filesystem operations themselves. ### How did you verify your code works? - Ran locally on Windows with backslash-containing paths - All 19 packages typecheck clean ### Checklist - [x] I have tested my changes locally - [x] I have not included unrelated changes in this PR

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.

[github-actions]

This PR doesn't fully meet our contributing guidelines and PR template.

What needs to be fixed:

• "What does this PR do?" section is empty or only contains placeholder text. Please describe your changes.
• No "Type of change" checkbox is checked. Please select at least one.
• No issue referenced. Please add Closes #<number> linking to the relevant issue.
• "How did you verify your code works?" section is empty. Please explain how you tested.
• Not all checklist items are checked. Please confirm you have tested locally and have not included unrelated changes.

Please edit this PR description to address the above within 2 hours, or it will be automatically closed.

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

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

Potential Related PRs Found:

1. fix/windows path normalization(#21441) #21852 - "fix/windows path normalization(SortableWorkspace session list empty due to store.path.directory not bootstrapped #21441)"

   • fix/windows path normalization(#21441) #21852
   • Appears to be a previous Windows path normalization fix - likely related to the same issue

2. fix: normalize windows path separators in session queries #20216 - "fix: normalize windows path separators in session queries"

   • fix: normalize windows path separators in session queries #20216
   • Addresses Windows path separator normalization in session queries

3. fix: normalize windows path separators in session queries #20215 - "fix: normalize windows path separators in session queries"

   • fix: normalize windows path separators in session queries #20215
   • Similar duplicate/related fix for session queries

4. fix(windows): keep project paths stable across aliases #18709 - "fix(windows): keep project paths stable across aliases"

   • fix(windows): keep project paths stable across aliases #18709
   • Related to Windows path handling

These PRs all address Windows path normalization concerns. PR #21852 in particular seems most directly related as it's a previous fix for Windows path normalization. You may want to verify if PR #22177 duplicates any existing work or if it addresses a different aspect of the Windows path handling issue.

[github-actions]

This pull request has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.

Feel free to open a new pull request that follows our guidelines.