mild enhancements of CI/CD

[sensuikan1973]

No description provided.

[gemini-code-assist]

Code Review

This pull request introduces a .gitattributes file to mark generated Dart files as linguist-generated, which helps in managing how these files are displayed in diffs. The review feedback suggests adding * text=auto to the file to ensure consistent line-ending handling across different operating systems.

[gemini-code-assist]

For a cross-platform project, it is a best practice to define the default line-ending behavior in .gitattributes. Adding * text=auto ensures that Git handles line endings consistently across different operating systems (Windows, macOS, Linux), which prevents 'phantom' diffs and potential issues in CI/CD pipelines caused by CRLF/LF mismatches.

* text=auto
*.g.dart linguist-generated=true
*.freezed.dart linguist-generated=true

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.13%. Comparing base (2fe3d9b) to head (bcbf178).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2924   +/-   ##
=======================================
  Coverage   94.13%   94.13%           
=======================================
  Files          52       52           
  Lines        1483     1483           
=======================================
  Hits         1396     1396           
  Misses         87       87           

Flag	Coverage Δ
integration_test	65.00% <ø> (ø)
macos-latest	93.05% <ø> (ø)
ubuntu	93.59% <ø> (ø)
widget_test	90.28% <ø> (+0.06%)	⬆️
windows	89.73% <ø> (-3.73%)	⬇️

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