fix(web): keep failed tool items in the collapsed group summaries

An ordinary exit-code failure knocked its whole tool group out of the
"Ran N commands" summary (and the live pill mid-run) into the raw
"+N previous tool calls" clamp: v2's derived tone marked any
status=failed item as "error", which the grouping treats as a non-tool
row. That inverts v1's semantics and #8395's muted-failure rule — the
failed lifecycle status already carries the X marker and the summary's
includes-a-failure hint, so the tone override goes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
baad1d3f82Julius Marminge committed on 9/5/2026, 4:54:27 AMparente2bc222
3 files changedLine totals unavailable