Two bugs on the agent terminal page after the #362 overhaul:
## 1. `↓ N new` pill clipped by the composer
The fixed-overlay composer (z-index 30, agent.css) sits in the
root stacking context. The pill — `position: absolute` inside
`.live.terminal` with no z-index — defaults to its document-order
position in the body's stacking order, which the composer covers.
Fix: bump `.agent-main .tail-pill { z-index: 35 }` so the pill
participates in the root stacking context above the composer.
Scoped to the agent-page overlay layout — the shared `.tail-pill`
rule stays untouched (the dashboard's in-page layout doesn't need
the bump).
## 2. Autoscroll-on-new-message not firing when the operator was
already at the bottom
`afterAppend()` in terminal.js was calling `isNearBottom()` AFTER
appending the new row. The new row's own height is already in
`scrollHeight` at that point, so for any row taller than the
NEAR_BOTTOM_PX threshold (48px — easily passed by a multi-line
message body, a tool-result summary, a markdown block), the check
returns false and the pill shows + scroll stays put.
Fix: capture `wasNearBottom = isNearBottom()` BEFORE the
`log.appendChild(...)` in each of `row` / `details` /
`detailsDiff`, pass it into `afterAppend(wasNearBottom)`. Now the
auto-scroll triggers whenever the operator was visually at the
bottom an instant before the row landed, regardless of the new
row's height.
Same shared `@hive/shared/terminal.js` is used by the dashboard
+ per-agent UI + the upcoming /flow.html page, so both pages
inherit the fix.
## Validation
`npm run build` clean.
Bundle deltas: shared terminal bundle re-inlined into both consumers
unchanged in size (the wasNearBottom variable is a single bool, no
measurable delta). Agent CSS +0.1kb (z-index property).
Browser smoke test isn't possible from inside iris's container —
worth eyeballing post-deploy:
- With the operator scrolled to bottom, a tall message lands and
the view scrolls to keep it visible (instead of pinning the
pill).
- The pill appears above the composer when the operator is
scrolled up and new messages land.
Closes#375.
5615da9211