Improved docstring and added examples for Development class

[kennethshsu]

Summary of Changes

Improved doctoring documentation, added a section on the order of drop operations, and added some examples

Related GitHub Issue(s)

#704

Additional Context for Reviewers

N/A

• 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
Documentation-only changes to Development (docstring text and doctest-style examples) with no runtime behavior modifications.

Overview
Improves the Development class docstring by clarifying average/drop-related parameter descriptions and explicitly documenting the order of operations when multiple drop options are combined (including how preserve affects exclusions).

Adds doctest-style examples demonstrating link ratio inspection and several common pattern-selection workflows (drop by cell, drop_above thresholds, combined drop_above/drop_below with preserve, and comparing average methods).

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.94%. Comparing base (e76d85d) to head (2763b68).

Additional details and impacted files

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  Coverage   86.94%   86.94%           
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  Files          86       86           
  Lines        4994     4994           
  Branches      644      644           
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  Hits         4342     4342           
  Misses        462      462           
  Partials      190      190           

Flag	Coverage Δ
unittests	86.94% <ø> (ø)

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[henrydingliu]

it's difficult to appreciate these examples by examining the estimate ldf_. it would be more instructive to also show the age_to_age off the transformed triangle following this example.

ethan also has an outstanding PR that he's been working on. you'll likely have some merge conflicts.

[kennethshsu]

Let me add in the LDFs I think that's a good idea.

@EKtheSage can you respond to the PRs you submitted, I don't think you are working on the development class and my has the newer stuff that was just merged.

[henrydingliu]

i see the original ata factors, but not the transformed ata factors.