test: run doctests automatically with pytest

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: derek73

pyproject.toml

@@ -56,7 +56,8 @@ module = [
 ignore_missing_imports = true
 
 [tool.pytest.ini_options]
-testpaths = ["tests"]
+testpaths = ["tests", "nameparser"]
+addopts = "--doctest-modules"
 python_classes = ["*Tests", "*TestCase"]
 # Fail if an xfail-marked test unexpectedly passes, so a fixed/regressed
 # expectation surfaces instead of silently turning into an xpass.