HTML API: Detect CDATA by adjusted node namespace

[sirreal]

Summary

• tracks CDATA eligibility separately from integration-point HTML tokenization
• preserves SVG/MathML namespaces for CDATA sections inside HTML integration points
• adds regression coverage for SVG foreignObject and MathML annotation-xml

Testing

• WP_TESTS_SKIP_INSTALL=1 ./vendor/bin/phpunit --filter 'test_cdata_sections_in_(svg|mathml)_html_integration_points' tests/phpunit/tests/html-api/wpHtmlProcessor.php
• WP_TESTS_SKIP_INSTALL=1 ./vendor/bin/phpunit tests/phpunit/tests/html-api/wpHtmlProcessor.php
• ./vendor/bin/phpcs --standard=phpcs.xml.dist src/wp-includes/html-api/class-wp-html-processor.php src/wp-includes/html-api/class-wp-html-tag-processor.php tests/phpunit/tests/html-api/wpHtmlProcessor.php
• codex review --base trunk

[sirreal]

Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

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[sirreal]

Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

🤖 Generated with Claude Code

_{- If this code review was useful, please react with 👍. Otherwise, react with 👎.}