refactor

[rpreen]

Bunch of cleaning and minor refactoring.

Runs CI pylint over the whole aisdc package instead of just attacks and safemodel.

Improves PEP 8 compliance and standardises naming as much as possible, e.g. X_train, X_val, X_test. y_train, y_val, y_test.

Adds a bunch of missing type hints.

Enables more linting rules in Ruff pre-commit.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.34%. Comparing base (cb1ab69) to head (61bc1b8).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #287      +/-   ##
==========================================
+ Coverage   99.30%   99.34%   +0.04%     
==========================================
  Files          41       40       -1     
  Lines        5301     5224      -77     
==========================================
- Hits         5264     5190      -74     
+ Misses         37       34       -3     

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