feat(admin): inquiry inbox, send log, email-template overrides, reports dashboard, recommender keys, role-editor coverage; replace placeholder pages

Closes the bulk of audit-pass-#1 admin gaps in one batch.

New admin pages:
- /admin/inquiries reads website_submissions with filter chips for
  berth/residence/contact + payload viewer per row.
- /admin/sends reads document_sends with sent/failed filter chips and
  expandable body markdown; failures surface errorReason and any
  fallback-to-link reason from the SMTP retry.
- /admin/email-templates lets per-port admins override the subject of
  each transactional template (8 templates catalogued in
  template-catalog.ts). Body editing is a follow-on; portal_activation
  + portal_reset are wired to honor the override via loadSubjectOverride.
- /admin/reports replaces the "Coming in Layer 3" placeholder with a
  KPI dashboard: 4 KPI tiles, pipeline funnel bars, berth occupancy
  donut-bars, conversion %, refresh every 60s.
- backup/import/onboarding admin pages replace placeholders with
  actionable guidance: backup posture + planned features, available CLI
  imports + planned UI, ordered onboarding checklist linking to admin
  pages.

Existing pages widened:
- settings-manager exposes the 9 berth-recommender tunables that were
  previously code-only (recommender_*, heat_weight_*, fallthrough_*,
  tier_ladder_hide_late_stage).
- role-form covers all 19 RolePermissions schema groups; previously
  missing yachts/companies/memberships/reservations + missing
  documents.edit + files.edit checkboxes. snake_case residential
  labels replaced with friendly text.

portal-auth.service.ts now also writes audit_log rows for portal
invite, resend, activate, password-reset request, and reset (closes one
more audit-pass-#2 gap while we were touching the file).

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

src/app/(dashboard)/[portSlug]/admin/import/page.tsx

@@ -1,14 +1,75 @@
 import { PageHeader } from '@/components/shared/page-header';
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
 
 export default function DataImportPage() {
   return (
-    <div className="space-y-6">
-      <PageHeader title="Data Import" description="Import data from external sources" />
-      <div className="flex flex-col items-center justify-center rounded-lg border border-dashed p-12">
-        <p className="text-lg font-medium text-muted-foreground">Coming in Layer 4</p>
-        <p className="text-sm text-muted-foreground">
-          This feature will be implemented in the next phase.
-        </p>
+    <div>
+      <PageHeader
+        title="Data import"
+        description="What you can import today and what an in-app importer will look like."
+      />
+
+      <div className="grid gap-4 mt-6 lg:grid-cols-2">
+        <Card>
+          <CardHeader>
+            <CardTitle>Available imports today</CardTitle>
+            <CardDescription>Run from the command line until the UI catches up.</CardDescription>
+          </CardHeader>
+          <CardContent className="space-y-3 text-sm">
+            <div>
+              <p>
+                <strong>Berths from NocoDB:</strong>
+              </p>
+              <pre className="bg-muted/40 rounded-md p-2 text-xs mt-1 overflow-auto">
+                pnpm tsx scripts/import-berths-from-nocodb.ts --apply --port-slug port-nimara
+              </pre>
+              <p className="text-xs text-muted-foreground mt-1">
+                Idempotent. Skips rows where <code>updated_at &gt; last_imported_at</code> unless
+                you pass <code>--force</code>. Add <code>--update-snapshot</code> to also rewrite{' '}
+                <code>src/lib/db/seed-data/berths.json</code>.
+              </p>
+            </div>
+            <div>
+              <p>
+                <strong>Storage backend migration:</strong>
+              </p>
+              <pre className="bg-muted/40 rounded-md p-2 text-xs mt-1 overflow-auto">
+                pnpm tsx scripts/migrate-storage.ts
+              </pre>
+              <p className="text-xs text-muted-foreground mt-1">
+                Run after switching <code>system_settings.storage_backend</code> in System Settings.
+              </p>
+            </div>
+            <div>
+              <p>
+                <strong>Seed (rebuild dev fixtures):</strong>
+              </p>
+              <pre className="bg-muted/40 rounded-md p-2 text-xs mt-1 overflow-auto">
+                pnpm db:seed
+              </pre>
+            </div>
+          </CardContent>
+        </Card>
+
+        <Card>
+          <CardHeader>
+            <CardTitle>What this page will become</CardTitle>
+            <CardDescription>Planned UI for self-serve imports.</CardDescription>
+          </CardHeader>
+          <CardContent className="space-y-2 text-sm">
+            <ul className="list-disc pl-5 space-y-1">
+              <li>Drag-and-drop CSV / XLSX upload with column-mapping UI.</li>
+              <li>Dry-run preview that shows new vs. matched-existing rows before commit.</li>
+              <li>Conflict-resolution choices (skip, update, dedup-by-email) per import type.</li>
+              <li>Per-port import history with rollback.</li>
+              <li>Templates for clients, yachts, companies, berths, reservations, expenses.</li>
+            </ul>
+            <p className="text-xs text-muted-foreground pt-2">
+              Imports run against the BullMQ <code>import</code> queue (concurrency 1) so partial
+              failures don&rsquo;t leave the database half-loaded.
+            </p>
+          </CardContent>
+        </Card>
       </div>
     </div>
   );