fix(fs): expandGlob/expandGlobSync - match non-glob path segments containing escaped glob chars

[dsherret]

Closes #6787

[codecov]

Codecov Report

❌ Patch coverage is 95.83333% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 94.08%. Comparing base (b8959a5) to head (aeb6e6a).

Files with missing lines	Patch %	Lines
fs/expand_glob.ts	95.83%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6788      +/-   ##
==========================================
- Coverage   94.09%   94.08%   -0.01%     
==========================================
  Files         578      578              
  Lines       42633    42655      +22     
  Branches     6779     6782       +3     
==========================================
+ Hits        40114    40134      +20     
- Misses       2468     2470       +2     
  Partials       51       51              

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[kt3k]

LGTM. Thanks!

[Copilot]

Pull Request Overview

This PR fixes an issue where expandGlob and expandGlobSync functions were not properly handling escaped glob characters in non-glob path segments. The fix ensures that when path segments contain escaped glob characters (like \[ or \]), they are correctly unescaped when building the fixed root path.

• Added unescapeGlobSegment helper function to remove escape characters from path segments
• Updated both expandGlob and expandGlobSync to unescape non-glob segments before joining them to the fixed root
• Added comprehensive tests for both async and sync versions with escaped bracket scenarios

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
fs/expand_glob.ts	Implements the core fix by adding unescaping logic for non-glob path segments
fs/expand_glob_test.ts	Adds test cases to verify escaped bracket handling in directory names

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[dsherret]

@kt3k I updated this PR based on the AI feedback. It was too simplistic before I think