Release 2.4.1

[derek73]

Clear PRE_RELEASE, set VERSION and CITATION.cff to 2.4.1, and date the release log.

What the release moves. compare.py --baseline 2.4.0 reports 6 of 3,423 corpus entries reading differently, all from the two fixes in the log:

• A nickname loses its comma: Jane (Janey, Jo) Smith gives nickname Janey Jo (1.4.0: Janey, Jo) #653 (five names): a comma inside a nickname is kept, e.g. Jane (Janey, Jo) Smith. The other four are Macáková, Alexandra Zuzana (pani, PhD), Maria Kowalska (z, domu Nowak), and Jane (née , Jones) Smith and Jane (née ,Jones) Smith, which move from maiden Jones to a nickname.
• A decomposed (NFD) name loses an abbreviated title: Dr. inž. Janez Novak reads inž. as the given name #652 (one name): Dr. inž. Janez Novak, written decomposed, reads title Dr. inž..

One of the six, the Macáková name, is a CLDR rendering only.

Checks: pytest (16,624 passed), ruff, mypy, sphinx-build -b html and -b doctest, python -m doctest README.rst, and readme_renderer are all clean. The README still leads with 2.4, which holds for a patch release.

After merge: tag v2.4.1 on the merge commit, then gh release create (the PyPI publish needs the pypi environment approval). Then reopen 2.5 dev and set DEFAULT_BASELINE to 2.4.1.

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.02%. Comparing base (2c2e58b) to head (0e0dcf3).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #667   +/-   ##
=======================================
  Coverage   99.02%   99.02%           
=======================================
  Files          46       46           
  Lines        4534     4534           
=======================================
  Hits         4490     4490           
  Misses         44       44           

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