[ifahimreza]

Closes #344

What

Blocks an AI app writes now carry their class, style and anchor on the page, not only in the block comment.

Why

On stage (page 264), edit-block with attrs: {"className": "s-ico-shield"} reported success, but the <li> had no class and the step lost its icon. An anchor on a group stayed in the comment and never became an id, so #works-with went nowhere. Both also make the editor see the block as changed.

How

• core/list-item uses tag( 'li', classnames(), inline_style() ), like every other text block.
• A new anchor() helper puts id="…" on the outer tag of every static block Saddle composes (all of them support anchors except core/html, which Saddle doesn't compose). The anchor also stays in the comment, so a later Saddle edit keeps it; the editor reads it from the id.
• Same bug, wider: edit-block with attrs only kept a leaf's saved markup, so a drop cap, heading level or class never reached the page. It now recomposes a paragraph, heading, list item, separator or spacer from its current text (inline markup kept). Image, button and code still keep their markup, because their content isn't plain inner text.
• An id made in the block editor (which leaves it out of the comment) is carried into anchor before recomposing, so it isn't dropped.
• Changelog lines under 1.6.0 (the number is Fahim's). No new translatable strings.

Testing

• vendor/bin/phpunit: 1519 tests, 8701 assertions, 1 skipped (PHP 8.2)
• vendor/bin/phpcs: no new findings
• New tests in tests/blocks-test.php: list item class and style (leaf and nested), the edit-block path from the issue, anchor → id on group, heading, paragraph, list item, spacer, separator, button and image, anchor escaping, attrs-only drop cap and heading level with inline markup kept, an editor-made anchor surviving an attrs-only edit on a heading and a group.

🤖 Generated with Claude Code

---

^{Need help on this PR? Tag @codesmith-bot with what you need.}