Add hide_for method to Comment class

[pfefferle]

Proposed changes:

• Add new hide_for() method to the Comment class that returns post types whose comments should be hidden in the WordPress admin.
• Refactor comment_query() and pre_comment_approved() methods to use the new helper method.
• Add activitypub_hide_comments_for filter to customize which post types have hidden comments.
• Add comprehensive unit tests for the new functionality and filter behavior.

Other information:

• Have you written new tests for your changes, if applicable?

Testing instructions:

• Run the test suite: npm run env-test -- --filter=test_hide_for
• Verify the tests pass and confirm:
  • ap_post is the only post type in the default list
  • The filter can add/remove post types
  • The filter affects both comment visibility and auto-approval

Changelog entry

Changelog entry added manually via composer changelog:add.

[Copilot]

Pull request overview

This PR introduces a new get_non_public_post_types() helper method to the Comment class and refactors existing methods to use it. However, the refactoring introduces significant behavioral changes that break backward compatibility.

Key Changes:

• Adds get_non_public_post_types() method that retrieves all WordPress post types with public => false
• Refactors comment_query() to always filter non-public post types instead of only when activitypub_create_posts option is enabled
• Refactors pre_comment_approved() to auto-approve comments on any non-public post type instead of just ap_post when the option is enabled

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
includes/class-comment.php	Adds new get_non_public_post_types() method and refactors comment_query() and pre_comment_approved() to use it, removing the Posts import and activitypub_create_posts option checks
tests/phpunit/tests/includes/class-test-comment.php	Adds basic unit test for the new method and imports Posts class
.github/changelog/add-get-non-public-post-types	Adds changelog entry for the new feature

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[jeherve]

This looks good and tests well for me. I like the addition of the filter, it should allow third-parties to hook into that logic if necessary.