feat(orders): add on-demand delivery-note match re-check route

Thin wrapper around suggestDeliveryNoteForOrder(id). The route
mirrors the quote matcher's /quote-match endpoint for the case
where an order's items were edited after intake, or the order
predates the automatic intake check.

Co-Authored-By: Claude <noreply@anthropic.com>

src/app/api/v1/orders/[id]/delivery-note-match/route.ts

@@ -0,0 +1,33 @@
+import { NextRequest, NextResponse } from "next/server";
+import { suggestDeliveryNoteForOrder } from "@/lib/server/order-delivery-note-link-service";
+
+/**
+ * POST /api/v1/orders/[id]/delivery-note-match
+ *
+ * Re-run delivery-note repeat-order detection for one order on demand
+ * — for the case where an order's items were edited after intake, or
+ * the order predates this feature. Orders created from now on are
+ * checked automatically at intake (see createOrder in
+ * orders-service.ts).
+ *
+ * Visibility only — writes potential_delivery_note and its sibling
+ * fields, never touches order processing or pricing.
+ *
+ * Returns: SuggestDeliveryNoteResult — { orderId, best, method }.
+ */
+export const runtime = "nodejs";
+export const dynamic = "force-dynamic";
+
+export async function POST(
+  _req: NextRequest,
+  { params }: { params: Promise<{ id: string }> },
+) {
+  try {
+    const { id } = await params;
+    const result = await suggestDeliveryNoteForOrder(id);
+    return NextResponse.json(result);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Delivery-note match failed";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}