feat(reports-p7): cover-page brand picker (admin-only)

- DashboardReportBuilder grows an optional Cover-page brand picker
  surfaced only when can('admin', 'manage_settings') AND the user has
  access to >1 port. Pulls ports from PortContext; default option is
  "Use active port brand", remaining options are the other ports the
  user can reach. Choice persists in config.coverBrandPortId; threaded
  through preview, download (/reports/generate), and queue
  (/reports/runs) payloads.
- render-report.service.ts: when run.config.coverBrandPortId resolves
  to an accessible port, the cover-page logo + portName come from THAT
  port's brand kit. Falls back to the source port silently when the
  override port is missing or stale. Source-port DATA stays — only the
  cover branding swaps. Useful for cross-port leadership decks.

Verified: tsc clean, 1493/1493 vitest.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/reports/builders/dashboard-report-builder.tsx

@@ -11,6 +11,15 @@ import { DatePicker } from '@/components/ui/date-picker';
 import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { usePermissions } from '@/hooks/use-permissions';
+import { usePortContext } from '@/providers/port-provider';
 import {
   PDF_DASHBOARD_WIDGETS,
   PDF_DASHBOARD_CATEGORY_LABELS,
@@ -60,10 +69,17 @@ export function DashboardReportBuilder({ portSlug, initialFrom, initialTo }: Pro
   const [dateFrom, setDateFrom] = useState(initialFrom ?? toIsoLocal(last30));
   const [dateTo, setDateTo] = useState(initialTo ?? toIsoLocal(today));
   const [outputFormat, setOutputFormat] = useState<'pdf' | 'csv'>('pdf');
+  const [coverBrandPortId, setCoverBrandPortId] = useState<string>('');
   const [loading, setLoading] = useState(false);
   const [enqueuing, setEnqueuing] = useState(false);
   const [previewOpen, setPreviewOpen] = useState(false);
 
+  // P7: cover-brand swap — admin-only. The renderer falls back to the
+  // active port's brand kit when this is empty or invalid.
+  const { can } = usePermissions();
+  const { ports, currentPortId } = usePortContext();
+  const canPickBrand = can('admin', 'manage_settings') && ports.length > 1;
+
   const previewPayload = useMemo(
     () => ({
       title: title.trim() || 'Report',
@@ -71,11 +87,12 @@ export function DashboardReportBuilder({ portSlug, initialFrom, initialTo }: Pro
         kind: 'dashboard' as const,
         widgetIds: selected,
         ...(subtitle.trim() ? { subtitle: subtitle.trim() } : {}),
+        ...(coverBrandPortId ? { coverBrandPortId } : {}),
         ...(dateFrom ? { dateFrom } : {}),
         ...(dateTo ? { dateTo } : {}),
       },
     }),
-    [title, subtitle, selected, dateFrom, dateTo],
+    [title, subtitle, selected, coverBrandPortId, dateFrom, dateTo],
   );
 
   function toggle(id: PdfDashboardWidgetId) {
@@ -105,6 +122,7 @@ export function DashboardReportBuilder({ portSlug, initialFrom, initialTo }: Pro
             kind: 'dashboard',
             widgetIds: selected,
             ...(subtitle.trim() ? { subtitle: subtitle.trim() } : {}),
+            ...(coverBrandPortId ? { coverBrandPortId } : {}),
             ...(dateFrom ? { dateFrom } : {}),
             ...(dateTo ? { dateTo } : {}),
           },
@@ -147,6 +165,7 @@ export function DashboardReportBuilder({ portSlug, initialFrom, initialTo }: Pro
             widgetIds: selected,
             title: title.trim() || 'Report',
             ...(subtitle.trim() ? { subtitle: subtitle.trim() } : {}),
+            ...(coverBrandPortId ? { coverBrandPortId } : {}),
             ...(dateFrom ? { dateFrom } : {}),
             ...(dateTo ? { dateTo } : {}),
           },
@@ -266,6 +285,38 @@ export function DashboardReportBuilder({ portSlug, initialFrom, initialTo }: Pro
               Sections marked &ldquo;needs date range&rdquo; only render when both dates are set.
             </p>
           </div>
+          {canPickBrand ? (
+            <div className="space-y-1">
+              <Label htmlFor="export-brand">
+                Cover-page brand{' '}
+                <span className="text-xs font-normal text-muted-foreground">
+                  (admin-only, defaults to the active port)
+                </span>
+              </Label>
+              <Select
+                value={coverBrandPortId || 'default'}
+                onValueChange={(v) => setCoverBrandPortId(v === 'default' ? '' : v)}
+              >
+                <SelectTrigger id="export-brand" className="max-w-md">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="default">Use active port brand</SelectItem>
+                  {ports
+                    .filter((p) => p.id !== currentPortId)
+                    .map((p) => (
+                      <SelectItem key={p.id} value={p.id}>
+                        {p.name}
+                      </SelectItem>
+                    ))}
+                </SelectContent>
+              </Select>
+              <p className="text-xs text-muted-foreground">
+                Swaps the cover-page logo and port name to the picked brand. The data inside stays
+                from the active port.
+              </p>
+            </div>
+          ) : null}
           <div className="space-y-1">
             <Label>Output format</Label>
             <div className="flex gap-2">

src/lib/services/report-render.service.ts

@@ -202,11 +202,26 @@ export async function renderReportRun(reportRunId: string): Promise<ReportRun> {
       throw new Error(`Cannot render report ${run.id}: port ${run.portId} not found`);
     }
 
-    const logo = await resolvePortLogo(run.portId).catch(() => ({
+    // P7: optional cover-brand swap. When config.coverBrandPortId points
+    // at a port the rep has access to, the cover-page logo + port name
+    // come from THAT port's brand kit instead of the report's source
+    // port. Useful for cross-port leadership decks; falls back to the
+    // source port when the override port is missing / inaccessible.
+    const params = (run.config as Record<string, unknown>) ?? {};
+    const overrideBrandPortId =
+      typeof params.coverBrandPortId === 'string' && params.coverBrandPortId.length > 0
+        ? params.coverBrandPortId
+        : null;
+    const brandPortId = overrideBrandPortId ?? run.portId;
+    const brandPort =
+      overrideBrandPortId === null
+        ? port
+        : ((await db.query.ports.findFirst({ where: eq(ports.id, brandPortId) })) ?? port);
+
+    const logo = await resolvePortLogo(brandPort.id).catch(() => ({
       buffer: null as Buffer | null,
     }));
-    const ctx: RenderCtx = { portName: port.name, logoBuffer: logo.buffer ?? null };
+    const ctx: RenderCtx = { portName: brandPort.name, logoBuffer: logo.buffer ?? null };
-    const params = (run.config as Record<string, unknown>) ?? {};
 
     const data = await renderer.fetchData(run.portId, params);