swarm-ui: the jobs and builds cards are folded by default

Both cards on the jobs tab start shut and read nothing until opened; a link
with ?run= opens the builds card. The fold-and-build-on-first-open part of the
hives card is now one LazyDisclosure, which the hives card uses too. Docs
follow.

frontend/packages/swarm-ui/src/pages/agents/HivesCard.tsx

@@ -16,7 +16,7 @@
 import { useState } from "preact/hooks";
 import { ApiErrorPanel } from "@hive/shared/api-error-panel.js";
 import { Badge, type BadgeTone } from "@hive/shared/badge.js";
-import { Disclosure } from "../../ui/disclosure/Disclosure.js";
+import { LazyDisclosure } from "../../ui/disclosure/LazyDisclosure.js";
 import { RelativeTime } from "../../ui/relative-time/RelativeTime.js";
 import {
   RefreshIntervalPicker,
@@ -25,7 +25,6 @@ import {
 import { fetchJson, usePolled } from "../../ui/polled/usePolled.js";
 import { Table, type TableColumn } from "../../ui/table/Table.js";
 import { domainCell } from "../hive-domain.js";
-import { builtAfterToggle } from "./lazy-open.js";
 
 type Freshness = "fresh" | "stale" | "never_reported" | "unknown";
 
@@ -151,20 +150,13 @@ function HiveRoster() {
 }
 
 export function HivesCard() {
-  const [open, setOpen] = useState(false);
-  const [built, setBuilt] = useState(false);
   return (
-    <Disclosure
+    <LazyDisclosure
       title="hives"
       icon="🐝"
       hint="the swarm's hives and when each last reported"
-      open={open}
-      onToggle={(next) => {
-        setOpen(next);
-        setBuilt((was) => builtAfterToggle(was, next));
-      }}
     >
-      {built ? <HiveRoster /> : null}
-    </Disclosure>
+      <HiveRoster />
+    </LazyDisclosure>
   );
 }

frontend/packages/swarm-ui/src/pages/agents/lazy-open.ts

@@ -1,5 +0,0 @@
-// A folded card builds its body on the first open and keeps it after, so a
-// card nobody opens never fetches, and closing it does not drop what it read.
-export function builtAfterToggle(built: boolean, open: boolean): boolean {
-  return built || open;
-}