Add changeset, revert CHANGELOG.md, and steer future writing away fro…
Add changeset, revert CHANGELOG.md, and steer future writing away from em-dashes CHANGELOG.md is changeset-generated; hand-editing its historical prose was out of scope, so it's back to main's version. Added a patch changeset describing the em-dash removal instead, and a line in CLAUDE.md/AGENTS.md so future prose in this repo doesn't reintroduce them. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
What happened
The CHANGELOG.md was reverted to its main version, and a changeset was added to reflect the removal of em-dashes. The documentation was updated to steer future writing practices accordingly.
Why it matters
This change ensures that documentation remains consistent and adheres to specific formatting guidelines, improving clarity for developers who rely on these documents for guidance.