Bootstrap entity config

[oandregal]

NOT READY TO REVIEW/MERGE. It still needs to collect more backports as we iterate on the API in Gutenberg.

Trac ticket: TBD.

What?

Backports the View Config REST API endpoint from Gutenberg to WordPress Core.

• Site Editor > Pages: move view config to the server gutenberg#76573

Why?

Part of WordPress/gutenberg#76544

How?

• Backports the View Config REST API endpoint from Gutenberg to WordPress Core. See src/wp-includes/rest-api/endpoints/class-wp-rest-view-config-controller.php endpoint.

Testing Instructions

1. Start a WordPress development environment.
2. Log in as an admin user.
3. Send a GET request to /wp-json/wp/v2/view-config?kind=postType&name=post — verify it returns generic defaults (table view, author/status fields).
4. Send a GET request to /wp-json/wp/v2/view-config?kind=postType&name=page — verify it returns page-specific config (list view, status sub-views like Published, Drafts, Trash).
5. Send the same request as an unauthenticated user — verify it returns a rest_cannot_read error.

Use of AI Tools

This backport was prepared with the assistance of Claude Code (Claude Opus 4.6).

[github-actions]

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