Export: Remove image classes by token

[MaggieCabrera]

Summary

Remove environment-specific image classes through the HTML processor during export.

This limits the cleanup to the matching class token and preserves similar text elsewhere in block markup.

Test plan

• vendor/bin/phpunit -c phpunit.xml.dist --verbose --filter Test_Create_Block_Theme_Templates
• vendor/bin/phpcs --standard=phpcs.xml.dist includes/create-theme/theme-templates.php tests/test-theme-templates.php
• Confirmed the image ID and matching class are removed while similar markup remains unchanged.

[Copilot]

Pull request overview

This PR refines template export cleanup for core/image and core/cover blocks by removing the environment-specific wp-image-{id} class using WP_HTML_Tag_Processor, so only the exact class token is removed and similar text in the markup is preserved.

Changes:

• Replace substring-based removal of wp-image-{id} with WP_HTML_Tag_Processor class-token removal during export.
• Add a regression test ensuring only the matching class token is removed while similar text remains intact.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
includes/create-theme/theme-templates.php	Switches image class cleanup to token-based removal via WP_HTML_Tag_Processor when stripping the image id.
tests/test-theme-templates.php	Adds a test case to verify only the exact wp-image-{id} class token is removed and similar text is preserved.

---

💡 Add a code-review agent skill or configure MCP servers for context-aware, tailored reviews. Learn more in the docs.