Cluster Pulse — Jobs roster visual hierarchy pass

Motivation

The cluster card's jobs roster had three readability problems:

1. Identity was a single long line — 20260521-1046 MPXV F3L - NC_003310.1 ran across the row with the program / db / query rendered as plain middle-dot text underneath, so it was unclear which part was the ID and which were facets.
2. The failure note inlined with the meta line — for the FAILED row, node_warmup_not_ready sat next to query.fa and read like metadata rather than an error.
3. The status word was low-contrast — COMPLETED / FAILED were rendered at ~10% opacity background which competed poorly with the left-edge colour bar.
4. The USER column was always present even when no row had an owner (— in every cell), wasting 76 px of the title column.

User-facing change

• JobLine now renders identity as a stacked two-row block: title on top, three explicit chips (program accent / db strong / query mono) below. The bullet / spinner shares a fixed 12 px gutter so the two lines align with the row's colour bar.
• The job note is no longer part of the identity meta. When a row carries a note it renders as a full-width stripe beneath the row cells, tinted with a danger / warning / info palette derived from noteSeverity, with a small AlertTriangle icon. FAILED rows always use the danger tint so node_warmup_not_ready is visually owned by the failure.
• The status pill is now filled (75% mix of the phase colour with a 35% outline) so COMPLETED / FAILED / RUNNING reads from across the card.
• The User column is auto-hidden when no visible row has an owner_upn. Both JobsTableHeader and JobLine switch grid templates from 1fr 76px 76px 92px to 1fr 76px 92px.

Backend / IaC diff

None. UI-only change.

Files

• web/src/components/cards/ClusterPulse/JobLine.tsx — replaced BlastJobIdentity usage with an inline title + chip row, added ChipMono, the noteSeverity helper, the filled status pill, and the failure stripe row.
• web/src/components/cards/ClusterPulse/JobsSection.tsx — derives hasOwners from jobIndex, threads it to header + rows.
• web/src/theme/dashboard-layout.css — rewrote the mobile .pulse-job-row > *:nth-child(N) selectors to use the new class names (.pulse-job-identity, .pulse-job-status-cell, .pulse-job-timeblock) so the responsive collapse still works after the User column became conditional and the note stripe became a 5^th child.

BlastJobIdentity is untouched; the other two call sites (ClusterBento/atoms.tsx, cards/JobCard.tsx) keep their behaviour.

Validation

• cd web && npm run build — clean, 13.34 s.
• Manual screenshot of http://127.0.0.1:8090/ against the live elb-cluster showing 2 COMPLETED rows + 1 FAILED row with the node_warmup_not_ready stripe rendered beneath the FAILED row, and the header collapsed to JOB / STATUS / TIME (no User column).