feat(admin-web): add web/admin to repo

Initial commit of the Super-Admin web panel (Next.js + TypeScript).
CI admin-web-check job was failing because the directory was never
tracked in git.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/admin/src/lib/pos-order-label.ts

@@ -0,0 +1,17 @@
+import type { Order } from "@/lib/api/types";
+
+/** Label for open orders at pay time: table + guest name. */
+export function formatPosOrderLabel(
+  order: Pick<Order, "tableNumber" | "guestName" | "customerName">,
+  tableWord: string
+): string {
+  const parts: string[] = [];
+  if (order.tableNumber) {
+    parts.push(`${tableWord} ${order.tableNumber}`);
+  }
+  const name = order.guestName?.trim() || order.customerName?.trim();
+  if (name) {
+    parts.push(name);
+  }
+  return parts.length > 0 ? parts.join(" · ") : "—";
+}