Release 2.4.0

[derek73]

Release checklist steps 2 and 3:

• nameparser/_version.py: PRE_RELEASE = "", so __version__ is 2.4.0
• CITATION.cff: version: "2.4.0"
• docs/release_log.rst: * 2.4.0 - October 11, 2026

Already done:

• Step 0: the stale-prose sweep, merged as Fix prose the 2.4 changes made stale (pre-release sweep) #647.
• Step 1: the differential comparison exits 0 at all five baselines (1.4.0, 2.0.0, 2.1.0, 2.2.0, 2.3.0). There were no MOVED SHAPE entries, and none of the radar diffs was promoted.
• Milestone 2.4: 0 open issues.
• Dependabot: no open PRs on uv.lock.

After merge: tag v2.4.0 on the merged commit, push the tag, gh release create, approve the pypi environment, then the milestone and the opening of the 2.5 cycle (steps 7–9).

Test plan

• Full suite passes locally (14,995 passed); sphinx-build -b html prints nothing
• nameparser.__version__ == "2.4.0"

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.02%. Comparing base (47b5ecd) to head (211609c).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #648   +/-   ##
=======================================
  Coverage   99.02%   99.02%           
=======================================
  Files          46       46           
  Lines        4513     4513           
=======================================
  Hits         4469     4469           
  Misses         44       44           

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