feat(fs): mock stubs current working directory by default

[hasundue]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 8 lines in your changes missing coverage. Please review.

Project coverage is 88.13%. Comparing base (b6db143) to head (3fc330b).

❗ Current head 3fc330b differs from pull request most recent head 819fed3

Please upload reports for the commit 819fed3 to get more accurate results.

Files	Patch %	Lines
src/fs.ts	71.42%	7 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #12      +/-   ##
==========================================
- Coverage   91.18%   88.13%   -3.06%     
==========================================
  Files           5        5              
  Lines         329      337       +8     
  Branches       24       24              
==========================================
- Hits          300      297       -3     
- Misses         29       39      +10     
- Partials        0        1       +1     

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