- new dom-helpers.ts exports dumpDom(page, selector?) that evaluates a
browser-side tree walker returning a lean DomNode structure
- filters ignored tags (svg, script, path, etc.) and hidden elements
- captures role, data-testid, data-qa, data-action, data-element-id,
id, type, name, href (relativized), checked, disabled, and text
- prunes single-child non-significant divs; discards empty non-sig nodes
- code-executor wraps dumpDom in a pageHelpers object passed as helpers
param so user scripts can call helpers.dumpDom() or helpers.dumpDom('main')
- 29 unit tests covering all behaviours via fake DOM builder
