- computeRequiredFacts now returns domAncestry flag by scanning formula
bindings for parentVar references (descendants/children domains)
- extractWorld fast-path gate now requires domAncestry === false — formulas
with parentVar domains will always use CDP extraction, which provides
the DOM parentNodeId data needed for ancestor index construction
- Prevents silent indeterminate results when descendants(, sel) is
used on the fast path (which lacks DOM ancestry data)
- Cache key updated to include domAncestry flag ('a') so cached fast vs
CDP results for the same selectors don't collide
John Dvorak
2eff60814d