[FIX] Apply Ruff fix to chainladder/adjustments.

[genedan]

Summary of Changes

Stacked PR on top of #1290. Fixes files in chainladder/adjustments.

I commented out some lines per #1298. Also added an exception for the disposal rate array to keep it in triangle format (rather than one element per line).

Related GitHub Issue(s)

#1216

Additional Context for Reviewers

Checklist

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

---

Note

Low Risk
Mostly lint and formatting; the bootstrap exception narrowing and commented DOF block are small behavioral/documentation tweaks in bootstrap simulation code.

Overview
Brings chainladder/adjustments (and related tests) in line with the project Ruff rules and drops the per-file Ruff ignores for those paths in pyproject.toml.

In BootstrapODPSample, hat-matrix failure handling now catches np.linalg.LinAlgError instead of a bare except, and the unused degree-of-freedom adjustment block at the end of fit is commented out (per #1298). The rest of the module changes are formatting and small style fixes (e.g. is not for type checks).

disposal.py and the adjustment tests are mostly quote/format/docstring cleanup; test_disposal keeps the Friedland expected array in triangular layout via # fmt: off and explicit float literals so Ruff does not flatten the assertion data. trend.py drops an unused pandas import.

^{Reviewed by Cursor Bugbot for commit 491ec61. Bugbot is set up for automated code reviews on this repo. Configure here.}

[github-actions]

Pyright Type Completeness

View the full pyright --verifytypes output for this commit

Project (full chainladder package, at this PR's head): 15.4% of exported symbols fully typed (213 / 1381)

	Known	Ambiguous	Unknown	Total
Project (head)	213	110	1058	1381

Other symbols referenced but not exported by chainladder: 13

	Known	Ambiguous	Unknown	Total
Other (head)	3	1	9	13

Symbols without documentation:

• Functions without docstring: 326
• Functions without default param: 0
• Classes without docstring: 10

Patch (exported symbols added or changed by this PR): no exported symbol type-completeness changes detected.

[codecov]

Codecov Report

❌ Patch coverage is 85.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.65%. Comparing base (9577b40) to head (491ec61).

Files with missing lines	Patch %	Lines
chainladder/adjustments/bootstrap.py	77.77%	1 Missing and 1 partial ⚠️
chainladder/adjustments/disposal.py	90.90%	1 Missing ⚠️

Additional details and impacted files

@@                   Coverage Diff                    @@
##           gd_ruff_fix_workflow    #1299      +/-   ##
========================================================
- Coverage                 91.66%   91.65%   -0.01%     
========================================================
  Files                        93       93              
  Lines                      5437     5431       -6     
  Branches                    704      704              
========================================================
- Hits                       4984     4978       -6     
  Misses                      328      328              
  Partials                    125      125              

Flag	Coverage Δ
unittests	91.65% <85.00%> (-0.01%)	⬇️

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