Riders are not receiving orders within their designated zones.

Summary:
I created a specific zone, registered a rider within that zone. However, when I places an order, the rider is not receiving any orders, even though they are both located in the same zone. This process is not functioning seamlessly as expected.

Expected Behavior:
The riders should receive an order when a user places an order.

Current Behavior:
Riders should be receiving orders within their designated zones.

How it occur:
I established a zone, subsequently adding a rider, and then assigned that specific zone to the rider.
Orders are being received within the restaurant app but are not appearing in the rider app.

No file or test is named. Start by tracing order assignment from the restaurant app through the rider app, checking how the rider's designated zone is matched to an order. Done means an eligible rider receives orders from their zone in the rider app, while orders remain visible in the restaurant app.

Written by the indexing model from the issue text.