Feature: Add order tracking and shipping status updates

- Add carrier, trackingNumber, and estimatedDeliveryDate fields to Order model
- Update order statuses: PENDING, PAID, PRINTING, PRINTED, SHIPPED, DELIVERED, FAILED
- Add admin UI on order detail page to update tracking information
- Display tracking info on customer account page in order history
- Server action to update order tracking and status

Customers can now see their shipping status and tracking details from
their account page. Admins can update order status and tracking info
from the order detail page.

.claude/settings.local.json

@@ -75,7 +75,8 @@
       "Bash(git commit -m 'Fix: Handle undefined designElements in design spec SVG rendering *)",
       "Bash(git commit -m 'Fix: Ensure cart is completely cleared after payment success *)",
       "Bash(git commit -m 'Fix: Update order status to PAID on checkout success page *)",
-      "Bash(git commit -m 'Improve: Cart clearing on success page with better state management *)"
+      "Bash(git commit -m 'Improve: Cart clearing on success page with better state management *)",
+      "Bash(git commit -m 'Feature: Add order tracking and shipping status updates *)"
     ]
   }
 }