ledger: collapse "Collection" column into the system subtitle

The ledger had two columns that told the same story twice: "Coverage"
(the Monitor* surfaces) and "Collection" ("API" / "Agent" / "Docker" /
"Kubernetes"). The Collection column repeated information the System
column's subtitle already carries (the product label — "Proxmox VE",
"Pulse Unified Agent", etc.) in a less informative form: "API" doesn't
tell a new user anything the word "Proxmox VE" below the row name
doesn't already imply.

Drop the Collection column and rewrite the subtitle to speak the
explainer's vocabulary directly. Platform-API-backed rows now render
"Platform API · Proxmox VE" / "Platform API · TrueNAS" / etc. — the
exact two-mode split the explainer just taught at the top of the page.
Agent / Docker / Kubernetes rows keep their product-name subtitle
("Pulse Unified Agent" / "Docker" / "Kubernetes"); the product name
already carries the source.

Table widths rebalanced (Coverage now gets the space Collection used).
colSpan for error rows drops 6→5 / 5→4. Test fixtures drop the
collectionLabel field; the "renders one row per monitored system" case
asserts the new "Platform API · TrueNAS" subtitle string.

frontend-modern/src/components/Settings/ConnectionsTable.tsx

@@ -48,7 +48,7 @@ export const ConnectionsTable: Component<ConnectionsTableProps> = (props) => {
   const hasActions = () =>
     Boolean(props.actions) || Boolean(props.onEdit);
 
-  const colSpan = () => (hasActions() ? 6 : 5);
+  const colSpan = () => (hasActions() ? 5 : 4);
 
   return (
     <Card padding="none" tone="card" class="rounded-md">
@@ -90,13 +90,10 @@ export const ConnectionsTable: Component<ConnectionsTableProps> = (props) => {
               <TableHead class="w-[26%] py-2 pl-4 pr-3 text-left text-xs font-semibold uppercase tracking-wide text-muted whitespace-nowrap 2xl:w-[18%]">
                 System
               </TableHead>
-              <TableHead class="w-[28%] px-3 py-2 text-left text-xs font-semibold uppercase tracking-wide text-muted whitespace-nowrap 2xl:w-[26%]">
+              <TableHead class="w-[34%] px-3 py-2 text-left text-xs font-semibold uppercase tracking-wide text-muted whitespace-nowrap 2xl:w-[32%]">
                 Coverage
               </TableHead>
-              <TableHead class="hidden w-[12%] px-3 py-2 text-left text-xs font-semibold uppercase tracking-wide text-muted whitespace-nowrap 2xl:table-cell">
-                Collection
-              </TableHead>
-              <TableHead class="w-[14%] px-3 py-2 text-left text-xs font-semibold uppercase tracking-wide text-muted whitespace-nowrap 2xl:w-[10%]">
+              <TableHead class="w-[14%] px-3 py-2 text-left text-xs font-semibold uppercase tracking-wide text-muted whitespace-nowrap 2xl:w-[12%]">
                 Status
               </TableHead>
               <TableHead class="hidden w-[12%] px-3 py-2 text-left text-xs font-semibold uppercase tracking-wide text-muted whitespace-nowrap 2xl:table-cell">
@@ -135,7 +132,6 @@ export const ConnectionsTable: Component<ConnectionsTableProps> = (props) => {
                               {row.lastErrorMessage}
                             </div>
                           </Show>
-                          <div class="text-xs text-muted 2xl:hidden">{row.collectionLabel}</div>
                         </div>
                       </TableCell>
 
@@ -151,10 +147,6 @@ export const ConnectionsTable: Component<ConnectionsTableProps> = (props) => {
                         </div>
                       </TableCell>
 
-                      <TableCell class="hidden px-3 py-3 align-top whitespace-nowrap text-base-content 2xl:table-cell">
-                        {row.collectionLabel}
-                      </TableCell>
-
                       <TableCell class="px-3 py-3 align-top">
                         <div class="space-y-1">
                           <span

frontend-modern/src/components/Settings/__tests__/ConnectionsTable.test.tsx

@@ -30,7 +30,6 @@ const row = (overrides: Partial<InfrastructureSystemRow> = {}): InfrastructureSy
     subtitle: undefined,
     host: '10.0.0.1',
     coverageLabels: ['Host telemetry'],
-    collectionLabel: 'Agent',
     statusLabel: 'online',
     statusClassName: 'bg-green-100 text-green-800',
     lastActivityText: '5s ago',
@@ -65,7 +64,7 @@ describe('ConnectionsTable', () => {
     expect(screen.queryByRole('table')).toBeNull();
   });
 
-  it('renders one row per monitored system with coverage, collection, and status labels', () => {
+  it('renders one row per monitored system with coverage and status labels', () => {
     render(() => (
       <ConnectionsTable
         rows={() => [
@@ -73,10 +72,9 @@ describe('ConnectionsTable', () => {
           row({
             id: 'truenas:nas',
             name: 'nas',
-            subtitle: 'TrueNAS',
+            subtitle: 'Platform API · TrueNAS',
             host: undefined,
             coverageLabels: ['Datasets'],
-            collectionLabel: 'API',
             statusLabel: 'Paused',
             connection: connectionFixture({ id: 'truenas:nas', type: 'truenas', name: 'nas' }),
           }),
@@ -87,7 +85,7 @@ describe('ConnectionsTable', () => {
     expect(screen.getByRole('table')).toBeInTheDocument();
     expect(screen.getByText('tower')).toBeInTheDocument();
     expect(screen.getByText('nas')).toBeInTheDocument();
-    expect(screen.getByText('TrueNAS')).toBeInTheDocument();
+    expect(screen.getByText('Platform API · TrueNAS')).toBeInTheDocument();
     expect(screen.getByText('Datasets')).toBeInTheDocument();
     expect(screen.getByText('Paused')).toBeInTheDocument();
     expect(screen.getByText('online')).toBeInTheDocument();

frontend-modern/src/components/Settings/__tests__/InfrastructureWorkspace.test.tsx

@@ -48,7 +48,6 @@ vi.mock('../useConnectionsLedger', () => ({
         subtitle: connection.type,
         host: connection.address,
         coverageLabels: ['VMs'],
-        collectionLabel: connection.type === 'agent' ? 'Agent' : 'API',
         statusLabel: connection.state === 'paused' ? 'Paused' : 'Active',
         statusClassName: '',
         lastActivityText: '1m ago',

frontend-modern/src/components/Settings/connectionsTableModel.ts

@@ -6,7 +6,6 @@ export interface InfrastructureSystemRow {
   subtitle?: string;
   host?: string;
   coverageLabels: string[];
-  collectionLabel: string;
   statusLabel: string;
   statusClassName: string;
   lastActivityText: string;

frontend-modern/src/components/Settings/useConnectionsLedger.ts

@@ -70,24 +70,18 @@ const SURFACE_LABELS: Record<string, string> = {
 
 export const surfaceLabel = (key: string): string => SURFACE_LABELS[key] ?? key;
 
-const collectionLabelFor = (type: ConnectionType): string => {
-  switch (type) {
-    case 'pve':
-    case 'pbs':
-    case 'pmg':
-    case 'vmware':
-    case 'truenas':
-      return 'API';
-    case 'agent':
-      return 'Agent';
-    case 'docker':
-      return 'Docker';
-    case 'kubernetes':
-      return 'Kubernetes';
-    default:
-      return 'Runtime';
-  }
-};
+// The ledger subtitle speaks the explainer's vocabulary so the user reads the
+// same "Platform API vs Pulse Unified Agent" split here that the explainer
+// card above just taught them. API-backed types get a "Platform API · {product}"
+// prefix; agent/docker/k8s rows use the product label alone (the product name
+// already carries the source — "Pulse Unified Agent" / "Docker" / "Kubernetes").
+const PLATFORM_API_TYPES: ReadonlySet<ConnectionType> = new Set([
+  'pve',
+  'pbs',
+  'pmg',
+  'vmware',
+  'truenas',
+]);
 
 const lastActivityText = (connection: Connection): string => {
   if (!connection.lastSeen) return 'No activity yet';
@@ -106,7 +100,10 @@ const lastActivityText = (connection: Connection): string => {
 
 const subtitleFor = (connection: Connection): string | undefined => {
   if (connection.stateReason) return connection.stateReason;
-  return CONNECTION_TYPE_LABELS[connection.type] ?? connection.type;
+  const productLabel = CONNECTION_TYPE_LABELS[connection.type] ?? connection.type;
+  return PLATFORM_API_TYPES.has(connection.type)
+    ? `Platform API · ${productLabel}`
+    : productLabel;
 };
 
 const EDITABLE_CONNECTION_TYPES: readonly ConnectionType[] = [
@@ -135,7 +132,6 @@ export const connectionToRow = (connection: Connection): InfrastructureSystemRow
     subtitle: subtitleFor(connection),
     host,
     coverageLabels: coverage,
-    collectionLabel: collectionLabelFor(connection.type),
     statusLabel: presentation.label,
     statusClassName: presentation.badgeClass,
     lastActivityText: lastActivityText(connection),