Feature: Add 24-hour cleanup for incomplete orders and update status display

- Create cleanupOrders utility to delete pending orders older than 24 hours
- Update admin notifications to only count recent pending orders (< 24h old)
- Automatically call cleanup when customer initiates checkout
- Change status display from "PENDING" to "Waiting payment" for customer-facing views
- Update both customer account page and admin orders page with new status label
- Incomplete orders automatically purged, reducing admin clutter

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/components/AdminNotifications.tsx

@@ -1,15 +1,24 @@
 import { prisma } from '@/lib/prisma';
+import { cleanupPendingOrders } from '@/lib/cleanupOrders';
 import AdminNotificationsBadge from './AdminNotificationsBadge';
 
 export default async function AdminNotifications() {
   try {
+    // Clean up old incomplete orders (older than 24 hours)
+    await cleanupPendingOrders();
+
+    // Only count pending orders that are less than 24 hours old (still waiting for payment)
+    const recentThreshold = new Date(Date.now() - 24 * 60 * 60 * 1000);
     const [
       pendingOrders,
       designApprovalsInReview,
       photoRequests,
     ] = await Promise.all([
       prisma.order.count({
-        where: { status: 'PENDING' },
+        where: {
+          status: 'PENDING',
+          createdAt: { gte: recentThreshold },
+        },
       }),
       prisma.designApproval.count({
         where: { status: 'IN_REVIEW' },