mara, follow-up on PR#3365: "follow up with the same for jobq". Drops
mountJobqGraph the same way mountJobqRollup was dropped - builds.js
now calls render(h(JobqGraph, {...}), root) directly, split into
mountRebuildQueue() (the one-time replaceChildren() + first render,
called once at page init) and renderRebuildQueue() (the render-only
path the rebuild_queue_changed handler and the cancel flow reuse,
bumping a module-level jobqGraphToken instead of holding a mount
handle). The split matters here specifically: repeating
replaceChildren() on every refresh would wipe Preact's own tracked
children out from under its diffing instead of letting it update them
minimally - JobqRollup's simpler version didn't need this since it
only ever renders into its own dedicated section once per app
lifetime's worth of state, but the rebuild queue refreshes on every
`rebuild_queue_changed` tick.
Re-verified: npm run build (whole workspace) + swarm-ui typecheck
clean (JobqGraph is also used via JSX on swarm-ui's /jobs page,
untouched by this), comment-block + issue-ref lints clean, headless-
chromium screenshot of builds.html's R3BU1LD QU3U3 tab against a
mocked /api/jobq/graph payload - tree, filter checkboxes, and cancel
buttons all render identically to before.