Fix: Refresh page after updating order tracking details

Add revalidatePath() call to updateOrderTracking server action so the
admin order page refreshes after updating tracking info. This ensures
the displayed data matches the database immediately.

src/app/admin/orders/actions.ts

@@ -1,6 +1,6 @@
 'use server';
 
-import { redirect } from 'next/navigation';
+import { redirect, revalidatePath } from 'next/navigation';
 import { prisma } from '@/lib/prisma';
 
 const AUTO_ARCHIVE_DAYS = 30;
@@ -55,5 +55,8 @@ export async function updateOrderTracking(formData: FormData) {
     },
   });
 
+  // Revalidate the page to show updated data
+  revalidatePath(`/admin/orders/${id}`);
+
   // TODO: Send email notification to customer when status changes
 }