Making `.sources` a scroll container turned its `padding-left` from spacing
into a correctness constraint. A scroll container clips inline-start overflow
with no way to scroll it back, and `::marker` is right-aligned to the content
edge, so past nine sources the markers rendered as `0.` and `1.` where `10.`
and `11.` belonged.
`searchMaxResults` is an unbounded positive integer, so size the padding in
`em` against the list's own font to hold a three-digit marker. The browser e2e
measures a `999. ` marker in that inherited font and requires the computed
padding to be at least that wide, pinning the room against the widest marker
rather than one fixture's source count.
Replace the WebBlock search card's head/tail collapse and expand button
with a fixed-height scroll container that lists every source the tool
returned. The model-facing side is unchanged: the seam still caps sources
at searchMaxResults and the truncated indicator stays, so model-visible
and frontend-visible sources remain identical.
Remove CHAT_WEB_MAX_SOURCES and DEFAULT_WEB_MAX_SOURCES: with scroll, the
chat row and details panel show the same full list.
- built-boot smoke asserts [data-variant=web][data-tool=web_search/fetch]
(the keyed WebRow) instead of [data-web] (which WebBlock draws even on the
GenericToolCard fallback, so a silent keyed-registration failure passed).
- WebBlock renders an explicit empty-state note when a search returns no
answer and no sources, instead of a blank <ol>; the chat row does not
surface the raw result content, so the backend's 'No results found.' was
otherwise invisible.
- README (ui-conversation, ui-primitives) and the frontend Agent Note record
the unknown-web-kind null arm, the details-panel flattened body, and the
empty-search copy; pairings re-recorded.
- DetailsPanel: render the flattened result content below the web card, so a
web_fetch's fetched body (and a search's answer/source markdown) stays
visible on the panel's single-call reading surface — the card is a summary.
- WebBlock: the collapsed source tail keeps each source's original citation
number via <li value>, and the expand control is a marker-less <li> so the
<ol> is valid HTML; an empty-hostname URL (file:/data:) falls back to the raw
URL so a label is never blank.
- web-row / GenericToolCard: both spread WebBlock uniformly with maxSources
(fetch ignores it, like TerminalBlock's maxLines), dropping the duplicated
per-kind conditional.
- Docs: WebBlock added to the ui-primitives README (both languages) with a Web
retrieval section; the ui-conversation README's "inline licensed for this
intent alone" claim de-absolutized and a web-card paragraph added; the Agent
Note's safe-link description corrected to the http(s) subset of MarkdownText's
allowlist (mailto excluded). Fixture source comment aligned with its data.
- Tests: ol numbering + marker-less expander, empty-hostname label fallback,
the fetched body visible in the panel.
Consume the card:'web' result view (structured sources + answer for search, the
URL and HTTP status for fetch) the web backend PR added. WebBlock
(ui-primitives) draws both kinds via the kind discriminant: a citation list of
safe external links (the MarkdownText protocol allowlist, title-or-hostname
label), a truncation indicator, a height cap matching TerminalBlock; a fetch
summary for the other kind. web-card-model is the single resultView derivation;
a keyed WebRow registers under web_search and web_fetch with the card resident
under its summary. The generic fallback and the details panel are web-aware.
Fixture gains web_search and web_fetch turns for the built-boot snapshot.
