Two fixes landed overlapping helpers on the same statement: the mid-turn
reply guard grew `isLiveProjectionRow` / `hasStreamedContent`, while the
inflight-dump guard grew `isLiveTailRow` / `hasStructuralParts`. Two
definitions of "is this row live" and "does it carry content" in one
function is how the next change silently reshapes one of them.
Collapse to a single module-level pair. `isLiveTailRow` now covers pending,
stream ids, inflight projections and sealed interim rows, so the reply guard
also stops treating an interim row as committed history; `hasStreamedContent`
is defined in terms of `hasStructuralParts`. Both text-extension checks route
through `isStrictAnswerTextExtension` rather than a bare `startsWith`.
Also hoists the live-tail lookup out of an inline IIFE and fixes the lint
warnings it carried.
Co-authored-by: 686f6c61 <github@00b.tech>
Brooklyn Nicholson
7a4d047e37