refactor: update test configuration and remove unused bun script

[gjbkz]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.86%. Comparing base (5aa19b9) to head (5f4ec4c).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #420      +/-   ##
==========================================
+ Coverage   96.48%   96.86%   +0.38%     
==========================================
  Files          45       45              
  Lines        2104     2104              
  Branches      209      209              
==========================================
+ Hits         2030     2038       +8     
+ Misses         73       66       -7     
+ Partials        1        0       -1     

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