chore: enable prek compatibility

[ssrhaso]

Enables prek to run alongside pre-commit

Codespell config:

Updated .pre-commit-config.yaml to pass --toml pyproject.toml to codespell (with tomli dependency), replacing the inline exclude regex. Added skip = ".svg,.ipynb" to [tool.codespell] in pyproject.toml to preserve the same exclusions.

JSON fixes: Replaced 11 bare Infinity values with null across docs/source/attacks/report_example_worstcase.json (10) and report_example_lira.json (1). Aligns with #421 (task I completed prior).

Why pre-commit didn't catch the JSON issue:
Python's json.loads() accepts bare Infinity, -Infinity, and NaN as non-standard extensions. The check-json hook from pre-commit-hooks uses json.loads(), so it silently passes invalid JSON values. prek uses a stricter JSON parser that follows the spec.

Closes #434
@rpreen

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.51%. Comparing base (a9524af) to head (25735bb).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #436   +/-   ##
=======================================
  Coverage   99.51%   99.51%           
=======================================
  Files          23       23           
  Lines        2687     2687           
=======================================
  Hits         2674     2674           
  Misses         13       13           

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[rpreen]

thanks, looks good