Add order management UI

Rebuild the landing page as an order overview for the Speisekarte24 tool:

- Two tabs: all orders and "Nicht übermittelt", the latter fed by the
  15-minute rule and highlighted while it holds entries
- Table, list and grid views behind an icon dropdown, plus search,
  filters, sorting and pagination
- Escalation timeline (three transmissions, tag, voice message, direct
  call, SOS) rendered in the detail dialog, inline in the list view and
  condensed to the current step in the table
- Action definitions live in one module and feed the row menu, the
  detail dialog and the card quick-action bar

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

src/lib/data.ts

@@ -0,0 +1,133 @@
+import {
+  UNDELIVERED_AFTER_MS,
+  type Order,
+  type OrderStatus,
+  type OrderType,
+  type PaymentMethod,
+  type Restaurant,
+} from "./types";
+
+const restaurants: Restaurant[] = [
+  {
+    name: "Muster Ristorante",
+    city: "Taben-Rodt",
+    hours: "10:00 bis 23:00",
+    phone1: "+49 6582 123456",
+    phone2: "+49 6582 123457",
+    mobile: "+49 171 2223344",
+    orderUrl: "https://order.speisekarte24.de/muster-ristorante",
+  },
+  {
+    name: "Pizzeria Da Vinci",
+    city: "Trier",
+    hours: "11:00 bis 22:30",
+    phone1: "+49 651 998877",
+    mobile: "+49 160 5544332",
+    orderUrl: "https://order.speisekarte24.de/da-vinci",
+  },
+  {
+    name: "Sushi Yama",
+    city: "Saarbrücken",
+    hours: "12:00 bis 23:00",
+    phone1: "+49 681 445566",
+    phone2: "+49 681 445567",
+    mobile: "+49 175 1112233",
+    orderUrl: "https://order.speisekarte24.de/sushi-yama",
+  },
+  {
+    name: "Burger Station",
+    city: "Konz",
+    hours: "11:30 bis 21:00",
+    phone1: "+49 6501 334455",
+    mobile: "+49 152 9988776",
+    orderUrl: "https://order.speisekarte24.de/burger-station",
+  },
+  {
+    name: "Athen Grill",
+    city: "Wittlich",
+    hours: "17:00 bis 23:30",
+    phone1: "+49 6571 220011",
+    orderUrl: "https://order.speisekarte24.de/athen-grill",
+  },
+];
+
+const customers = [
+  { name: "Test Tester", email: "agentur@speisekarte24.de", phone: "+49 170 1234567" },
+  { name: "Anna Berger", email: "anna.berger@example.com", phone: "+49 151 2345678" },
+  { name: "Murat Yilmaz", email: "m.yilmaz@example.com", phone: "+49 176 3456789" },
+  { name: "Sophie Klein", email: "sophie.klein@example.com", phone: "+49 152 4567890" },
+  { name: "Lukas Weber", email: "lukas.weber@example.com", phone: "+49 160 5678901" },
+  { name: "Nina Hoffmann", email: "nina.h@example.com", phone: "+49 171 6789012" },
+  { name: "Jonas Krämer", email: "j.kraemer@example.com", phone: "+49 175 7890123" },
+  { name: "Elif Demir", email: "elif.demir@example.com", phone: "+49 157 8901234" },
+];
+
+/** Status für Bestellungen, die bereits bearbeitet wurden. */
+const handledStatuses: OrderStatus[] = [
+  "uebermittelt",
+  "uebermittelt",
+  "uebermittelt",
+  "telefonisch",
+  "telefonisch",
+  "rueckruf",
+  "storniert",
+  "fake",
+];
+
+/**
+ * Ältere Bestellungen mit diesem Index bleiben `neu` und kippen dadurch über die
+ * 15-Minuten-Regel auf "Nicht übermittelt" – bewusst nur eine Handvoll.
+ */
+const undeliveredIndexes = new Set([4, 11, 23]);
+
+const types: OrderType[] = ["vorbestellung", "direktanruf"];
+const payments: PaymentMethod[] = ["bar", "ec", "paypal", "kreditkarte"];
+
+/** Deterministischer PRNG, damit Server- und Client-Render identisch sind. */
+function seeded(seed: number) {
+  let s = seed;
+  return () => {
+    s = (s * 1664525 + 1013904223) % 4294967296;
+    return s / 4294967296;
+  };
+}
+
+/**
+ * Erzeugt Demo-Bestellungen relativ zu `now`, damit die jüngsten Aufträge innerhalb
+ * des 15-Minuten-Fensters liegen und ältere als nicht übermittelt gelten.
+ */
+export function createOrders(now: number, count = 42): Order[] {
+  const rand = seeded(20260804);
+
+  return Array.from({ length: count }, (_, i) => {
+    const ageMinutes = i * 6 + Math.floor(rand() * 4);
+    const receivedAt = new Date(now - ageMinutes * 60_000);
+    const dueAt = new Date(receivedAt.getTime() + (20 + Math.floor(rand() * 55)) * 60_000);
+    const fresh = ageMinutes * 60_000 < UNDELIVERED_AFTER_MS;
+    const handled = handledStatuses[Math.floor(rand() * handledStatuses.length)];
+    const open = fresh || undeliveredIndexes.has(i);
+    // Bearbeitete Bestellungen wurden innerhalb der Eskalationsfrist bestätigt.
+    const confirmedAt = open
+      ? undefined
+      : new Date(receivedAt.getTime() + (1 + Math.floor(rand() * 12)) * 60_000).toISOString();
+
+    return {
+      id: `ord_${1000 + i}`,
+      number: count - i,
+      // Frische Bestellungen dürfen offen sein, ältere nur die ausgewählten drei.
+      status: open ? "neu" : handled,
+      type: types[Math.floor(rand() * types.length)],
+      restaurant: restaurants[Math.floor(rand() * restaurants.length)],
+      customer: customers[Math.floor(rand() * customers.length)],
+      receivedAt: receivedAt.toISOString(),
+      dueAt: dueAt.toISOString(),
+      total: Math.round((6 + rand() * 60) * 100) / 100,
+      itemCount: 1 + Math.floor(rand() * 7),
+      payment: payments[Math.floor(rand() * payments.length)],
+      pdfUrl: `/bestellungen/ord_${1000 + i}.pdf`,
+      externalUrl: `https://backoffice.speisekarte24.de/bestellungen/${1000 + i}`,
+      confirmedAt,
+      events: [],
+    } satisfies Order;
+  });
+}