#869 friedland auto bi insurer premium

[kennethshsu]

Summary of Changes

Added premium to the friedland_auto_bi_insurer data

Related GitHub Issue(s)

Fixed #869

Additional Context for Reviewers

None

• I passed tests locally for both code (uv run pytest) and documentation changes (uv run jb build docs --builder=custom --custom-builder=doctest)

---

Note

Low Risk
Sample data and loader metadata only; no actuarial core or auth changes.

Overview
Adds Earned Premium to the Friedland friedland_auto_bi_insurer sample CSV (constant per accident year) and wires load_sample so auto_bi_insurer uses the same triangle columns as uspp: Paid Claims, Reported Claims, and Earned Premium.

Also includes a small cleanup in date_delta_adjustment (single-line timedelta assignment, trailing newline) and routine uv.lock updates (Python 3.14 resolution markers, additional greenlet wheel entries).

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.04%. Comparing base (449b5c1) to head (78c218e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #870   +/-   ##
=======================================
  Coverage   87.04%   87.04%           
=======================================
  Files          86       86           
  Lines        4986     4986           
  Branches      646      646           
=======================================
  Hits         4340     4340           
  Misses        456      456           
  Partials      190      190           

Flag	Coverage Δ
unittests	87.04% <100.00%> (ø)

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[henrydingliu]

any chance you could just piggyback off the next if statement?

[kennethshsu]

Ya, sounds good, and I just checked that uspp actually has the same order instead of what was listed.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[henrydingliu]

@genedan I'm not sure if this reverted back any of your recent refactors. Could you please provide the review?

[kennethshsu]

@genedan I'm not sure if this reverted back any of your recent refactors. Could you please provide the review?

Ya I have no idea where I pulled that code from, probably accidentally from the wrong branch. But based on reviewing only the diffs I think it's clean.

[henrydingliu]

@kennethshsu i just realized i made a doodoo. the latest load_sample clean-up from #886 deprecates some of the pattern here. should've sequenced these better. i will open a new PR for your review.