Release v1.9.1

[coliff]

Revert breaking change (introduced in v1.9.0) of adding an exports field to package.json

[gemini-code-assist]

Code Review

This pull request correctly prepares for the v1.9.1 release. The primary change is reverting the addition of the exports field in package.json, which was a breaking change in v1.9.0. This reversion is appropriate for a patch release aimed at restoring compatibility. The version numbers in package.json and package-lock.json are updated correctly, and the corresponding documentation in the changelog and website banner has been updated as well. The changes are consistent and look good.

[Copilot]

Pull request overview

This PR prepares the v1.9.1 release by reverting the breaking package.json exports change introduced in v1.9.0, and updating the website/docs to reflect the new release.

Changes:

• Bump package version to 1.9.1 and remove the exports field from package.json.
• Update package-lock.json version metadata to 1.9.1.
• Update website banner and changelog to announce/document v1.9.1.

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
website/src/content/docs/index.mdx	Updates homepage banner to announce v1.9.1.
website/src/content/docs/changelog.mdx	Adds v1.9.1 release notes and adjusts v1.9.0 date line.
package.json	Bumps version to 1.9.1 and removes exports to revert the breaking change.
package-lock.json	Updates lockfile package/version metadata to 1.9.1.