1.0.0's PyPI filenames were burned: the tag was re-pushed after an identity fix,
the original upload was deleted, and PyPI permanently refuses reused filenames.
Identical code; version strings and changelog heading only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TmmpBhMTvxxAdnsW4V2JSg