feat(reports): client / berth / interest list-export PDF reports (phase B)

Extends the report exporter with three list-style report kinds —
clients, berths, interests. Each shares the BrandedReportDocument
layout + the new ReportTable primitive (zebra-striped rows,
proportional widths, no-break rows to keep records together across
page boundaries).

Data fetchers in `src/lib/services/list-report-data.service.ts`:
  - resolveClientReportData: clients table joined to per-client
    primary email + phone via DISTINCT-style subqueries (matches the
    canonical listClients ordering: is_primary DESC, created_at DESC
    per channel).
  - resolveBerthReportData: berths table, default sort by mooring
    number for printed familiarity.
  - resolveInterestReportData: interests left-joined to clients +
    primary berth, sort by updatedAt desc.

All three cap at 1 000 rows per export with a clear "Showing top N
of <total>" notice rendered when the cap is hit. Above that, the PDF
becomes unreadable (hundreds of pages); reps wanting larger exports
use CSV.

Route schema widened to a 4-arm discriminated union; the dispatch
switch in render-report.ts uses `satisfies` for compile-time variant
narrowing and a `_exhaustive: never` check at the bottom.

UI: each list page (BerthList, ClientList, InterestList) gains an
ExportListPdfButton next to the existing ColumnPicker. Permission-
gated client-side on reports.export; server route re-enforces.

Tests: 3 new render fixtures (1 per kind), all hit the same
%PDF-magic + byte-length assertions. Total render tests now 6/6;
full vitest sweep 1454/1454.

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

src/components/berths/berth-list.tsx

@@ -11,6 +11,7 @@ import { FilterBar } from '@/components/shared/filter-bar';
 import { PageHeader } from '@/components/shared/page-header';
 import { SavedViewsDropdown } from '@/components/shared/saved-views-dropdown';
 import { ColumnPicker } from '@/components/shared/column-picker';
+import { ExportListPdfButton } from '@/components/reports/export-list-pdf-button';
 import { Button } from '@/components/ui/button';
 import { Input } from '@/components/ui/input';
 import { EmptyState } from '@/components/shared/empty-state';
@@ -136,6 +137,7 @@ export function BerthList() {
             )}
           </Button>
           <ColumnPicker columns={BERTH_COLUMN_OPTIONS} hidden={hidden} onChange={setHidden} />
+          <ExportListPdfButton kind="berths" />
           {canBulkAdd && (
             <Button asChild size="sm" variant="default">
               <Link href={`/${params.portSlug}/admin/berths/bulk-add`}>