Phase7: Void/Refund logic

src/app/[locale]/admin/billing/invoices/[id]/page.tsx

@@ -1,7 +1,7 @@
 import { notFound, redirect } from "next/navigation";
 import { getTranslations } from "next-intl/server";
 import { getSessionUser } from "@/lib/session";
-import { getInvoiceDetail } from "@/lib/db";
+import { getInvoiceDetail, listCreditNotesForInvoice } from "@/lib/db";
 import { BackLink } from "@/components/ui/back-link";
 import { InvoiceDetailView } from "@/components/admin/billing/invoice-detail-view";
 
@@ -9,8 +9,12 @@ import { InvoiceDetailView } from "@/components/admin/billing/invoice-detail-vie
  * /admin/billing/invoices/[id] — full detail of one invoice.
  *
  * Server-renders the static body (header, lines, totals, billing
- * snapshot); the action bar (mark-paid, delete, PDF download) is
- * a client component for the interactive bits.
+ * snapshot); the action bar (mark-paid, void, refund, delete, PDF
+ * download) is a client component for the interactive bits.
+ *
+ * Phase 7: also passes any linked credit notes so the detail view
+ * can show the "this invoice was voided / partially refunded" panel
+ * without an extra round-trip.
  */
 export default async function AdminInvoiceDetailPage({
   params,
@@ -25,11 +29,12 @@ export default async function AdminInvoiceDetailPage({
   const { id } = await params;
   const detail = await getInvoiceDetail(id);
   if (!detail) notFound();
+  const creditNotes = await listCreditNotesForInvoice(id);
 
   return (
     <main className="max-w-4xl mx-auto px-6 py-8">
       <BackLink href="/admin/billing/invoices" label={t("backToInvoices")} />
-      <InvoiceDetailView detail={detail} />
+      <InvoiceDetailView detail={detail} creditNotes={creditNotes} />
     </main>
   );
 }