feat: expose proper server working directory

[RobPasMue]

Description

Following #2349 - we should properly expose the server working directory as follows (to all backends launched locally). Also, the default should always be the current working directory of the parent process IMO to provide consistency. But we should allow users to modify it if they want to.

Issue linked

None

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 95.36%. Comparing base (8a01771) to head (8355e67).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ansys/geometry/core/connection/product_instance.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2350      +/-   ##
==========================================
+ Coverage   95.34%   95.36%   +0.01%     
==========================================
  Files         168      168              
  Lines       11103    11101       -2     
==========================================
  Hits        10586    10586              
+ Misses        517      515       -2     

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[MaxJPRey]

LGTM.

[RyanJWard]

Looks good