The base (feat/web-presenter) removed the content field from
WebSearchResultView/WebFetchResultView: the web card carries no content
copy and a capability-less UI falls back to the raw tool/result content
(web-result-card note). The fixture still constructed both web result
views with a content field, failing the e2e build with TS2353. Drop the
content spread and the stale Omit key; the fixture already emits the same
text as the tool/result content the fallback path renders.
The mutate seam's root-path ops, its non-array rejection, and the recursion
into an existing nested object were unexercised, as was the whole containment
side of the settings/document-updated fan-out and the before-snapshot repair
of a section a hand edit left non-object. The settings.mutate route had no
round trip at all: neither the client method nor the handler entry ran.
Every expandable tool row shares one interaction (whole-row toggle,
icon-to-chevron hover preview) and one expanded body: an IN/OUT
gutter-labeled card with per-section 150px scroll caps and sticky labels.
toolRowModel derives result output and the error first line, terminalFailed
surfaces a failing exit as the collapsed row's red dot, a hover Inspect
pill jumps to the call's trajectory record through a one-shot store
handoff, and the chat view keeps its scroll offset across view switches.
Rewrite the Agent Note's stale 'TUI has no web arm' claim to match the
web fallback branch this PR added to transcript.ts. Replace the hardcoded
line-number comment with a symbolic reference, and mark the web arm's
unreachable optional-chain undefined side with a reasoned v8 ignore for
the per-file 100% branch gate.
grep/glob return no presentResult on an error result, so an errored search had
no card and the keyed SearchRow showed only a red dot — the model-facing error
text (bad pattern, missing path, a nested run_code dispatch with no card) was
nowhere on screen. Add an error-text arm mirroring the file-mutation and read
rows. Added tests for the text arm and its name/code fallback. The unknown-kind
fallback in search-card-model is already guarded (returns null → generic path).
Route a `web` result card's raw-content fallback through the TUI's dim
Markdown path (render() only recognized `card: 'generic'` as markdown
content, so web fallback rendered as bare undimmed text).
Memoize renderFetchOutput per (result, maxOutputChars) so the registry's
twin output.render / output.presentationMeta calls on the same frozen
result run one HTML->markdown conversion instead of two.
Remove the trailing `</content>`/`</invoke>` protocol residue from both
sides of the web-result-card Agent Note and re-record the pairing.
