Re-commit reverted PR (Petscan Builder)

[audiodude]

Re-adding commits reverted in #643 (improperly merged to HEAD).

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.04 🎉

Comparison is base (34d5c7b) 96.37% compared to head (0b46589) 96.42%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #650      +/-   ##
==========================================
+ Coverage   96.37%   96.42%   +0.04%     
==========================================
  Files          96       98       +2     
  Lines        7608     7714     +106     
==========================================
+ Hits         7332     7438     +106     
  Misses        276      276              

Impacted Files	Coverage Δ
wp1/selection/models/petscan.py	100.00% <100.00%> (ø)
wp1/selection/models/petscan_test.py	100.00% <100.00%> (ø)
wp1/web/builders.py	88.48% <100.00%> (ø)

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.