Break up eval test suite

[dcramer]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 92.00000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 84.34%. Comparing base (a52ceea) to head (82aa2bf).
Report is 2 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/evals/utils.ts	92.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #46      +/-   ##
==========================================
+ Coverage   84.20%   84.34%   +0.14%     
==========================================
  Files          18       18              
  Lines        2380     2428      +48     
  Branches      144      148       +4     
==========================================
+ Hits         2004     2048      +44     
- Misses        376      380       +4     

Flag	Coverage Δ
evals	32.24% <92.00%> (+1.19%)	⬆️
unittests	81.13% <0.00%> (-1.64%)	⬇️

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