[WIP] Fix failing GitHub Actions job for format suggestions

[Copilot]

• Inspect failing GitHub Actions run and job logs to identify root cause
• Reproduce formatting diff locally and apply minimal formatting fixes
• Run targeted validation (format/style and relevant tests)
• Run final validation checks and report results

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.91%. Comparing base (0516f33) to head (6313df4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #253   +/-   ##
=======================================
  Coverage   81.91%   81.91%           
=======================================
  Files          24       24           
  Lines        1521     1521           
=======================================
  Hits         1246     1246           
  Misses        275      275           

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