…d PIE-927

pie-lib's PreviewPrompt no longer renders id="preview-prompt" on its container. Every

prompt on a page emitted that same id, so the id was invalid HTML wherever a page carried

more than one prompt -- it broke aria-labelledby / aria-describedby and label-for

wiring, and it broke the document-wide getElementById lookup PreviewPrompt itself read it

back through: on a five-item page 28 of 30 typeset requests resolved to item 1's prompt and

items 2-5 were never typeset. The component now finds its own node via a ref, and the

container carries a stable preview-prompt class in place of the id. A class is the

supported hook for "is this node inside a prompt", precisely because it stays valid when a

page renders many prompts.

The ten audio.closest('#preview-prompt') call sites move to .preview-prompt:

multiple-choice, categorize, drag-in-the-blank, hotspot and

image-cloze-association, two eachimage-cloze-association, two eachimage-cloze-association, two eachimage-cloze-association, two eachimage-cloze-

mage-cloze-association, two eachimage-cloze-association, two eachimage-cloecked rathermage-cloze-association, two eachimage-cloze-association, two eachimage-cloecked rathermar pmage-cloze-association, two eachimage-cloze-association, two eachimage-cloeckidePrompt return

skips the autoplay toast wiring entirely, so prompt audio never plays in Safarskips the autoplay toast wiring entirely, so prompt audio never plays in Safarskips to sitting outside a

prompt, and behave as intended in all five packages.

No test mock needed the class: none of the existing tests reach closest().

multiple-choice calls isComplete with one argument, so the audio gate is never entered;

hotspot and image-cloze-association replace the element with a stub via

jest.mock('../index'); categorize and drag-in-the-blank have no audio coverage at all.

The data-testid=preview-prompt mocks are a different attribute and are left alone.

.preview-prompt only exists in the new @pie-lib/render-ui, so this cannot land on its own

-- flipping the selectors against 6.1.3 breaks prompt-audio detection exactly as leaving

them breaks it against the new version.

EOF

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