Gateway not running after azd up

I followed the steps in the README for GitHub Codespaces and cannot get the Gateway to run.

**Steps to reproduce**

1. Press the "Open in GitHub Codespaces" button on https://azure.github.io/ai-app-templates/repo/azure-samples/java-microservices-aca-lab/ and create the fork
2. Login in the terminal of VS Code in Codespaces: `azd auth login` and `az login`
3. Provision using `azd up`
4. I chose West Europe as region since "Azure Database for MySQL" did not want to start in US East
5. Everything is deployed and Spring Boot Admin url is available
6. The gateway does not run

**Error description**
When navigating to the gateway on portal.azure.com I can see that it is in status "Degraded". The error is:

"Deployment Progress Deadline Exceeded. 0/1 replicas ready. The TargetPort 8080 does not match any of the listening ports: [34025 46461 24001]."

So the configuration does not seem to work out of the box and there is an issue with the ports.

Note: My colleagues, working separately, experienced the exact same issue.

Start with the README steps for GitHub Codespaces and the deployment configuration used by `azd up`. Reproduce the deployment, then inspect why the Gateway expects target port 8080 while the container listens on ports 34025, 46461, and 24001. Done means the Gateway reaches a ready state after the documented setup, including when deploying to West Europe.

Written by the indexing model from the issue text.