AI junk

[tomatotomata]

Summary

• reject unexpected keyword arguments on URLSafeSerializer.loads instead of silently ignoring them
• add an explicit typing overload so type checkers flag timed-only arguments such as max_age
• add regression coverage and an unreleased changelog entry

This keeps accidental use of max_age on an untimed serializer from appearing to enforce expiry.

Validation

• PYTHONPATH=src python -m pytest -q (298 passed)
• PYTHONPATH=src python -m pytest tests/test_itsdangerous/test_url_safe.py -q (131 passed)
• python -m ruff check src/itsdangerous/url_safe.py tests/test_itsdangerous/test_url_safe.py
• python -m compileall -q src tests
• git diff --check

Fixes #429

[davidism]

https://palletsprojects.com/contributing/llm-ai