fix(docsite): show CheckIndicator in properties preview

[Kyujenius]

Summary

• Start the CheckIndicator Properties preview in its visible checked state.
• Cover the generated component registry default so the preview cannot silently regress to an empty stage.

Fixes #5890

Verification

• pnpm -F @astryxdesign/docsite generate && pnpm -F @astryxdesign/docsite test (456 tests passed)
• pnpm -F @astryxdesign/core typecheck:docs

Screenshot

AS-IS	TO-BE

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated
astryx	Ready	Preview	Sep 3, 2026 5:53pm UTC

[meta-cla]

Hi @Kyujenius!

Thank you for your pull request and welcome to our community.

Action Required

In order to merge any pull request (code, docs, etc.), we require contributors to sign our Contributor License Agreement, and we don't seem to have one on file for you.

Process

In order for us to review and merge your suggested changes, please sign at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need to sign the corporate CLA.

Once the CLA is signed, our tooling will perform checks and validations. Afterwards, the pull request will be tagged with CLA signed. The tagging process may take up to 1 hour after signing. Please give it that time before contacting us about it.

If you have received this in error or have any questions, please contact us at cla@meta.com. Thanks!

[meta-cla]

Thank you for signing our Contributor License Agreement. We can now accept your code for this (and any) Meta Open Source project. Thanks!

[cixzhang]

Thanks, the preview fix and regression test are good. Please add a @astryxdesign/core patch changeset so this packaged docs update ships with release notes and contributor credit.

[Reviewed by Robohands]

[Kyujenius]

@cixzhang
Thanks! 👍 Added the changeset and went ahead and added one to #5976 too.

[cixzhang]

Thanks, this is good. The patch changeset now carries the CheckIndicator preview fix and contributor credit into the core release notes.

[Reviewed by Robohands]