feat(admin): add v2 order detail fulfillment timeline (Placed → Ready → Picked up)

src/app/admin/v2/orders/[id]/page.tsx

@@ -6,6 +6,7 @@ import PageHeader from "@/components/admin/PageHeader";
 import StatusPill, { type StatusKind } from "@/components/admin/StatusPill";
 import StickyActionBar from "@/components/admin/StickyActionBar";
 import OrderActionButtons from "@/components/admin/orders/OrderActionButtons";
+import FulfillmentTimeline from "@/components/admin/orders/FulfillmentTimeline";
 
 export const dynamic = "force-dynamic";
 
@@ -109,6 +110,12 @@ export default async function OrderDetailV2Page({
           </section>
         )}
 
+        <FulfillmentTimeline
+          status={kind}
+          placedAt={order.created_at}
+          pickedUpAt={order.pickup_completed_at}
+        />
+
         <section
           className="rounded-2xl p-4"
           style={{ backgroundColor: "var(--color-surface-2)" }}