bvsvas/opentelemetry-demo ? reverse-engineered prompt

Build me the OpenTelemetry Astronomy Shop demo, a realistic little online shop made up of multiple services that talk to each other, so I can use it to show how tracing, metrics, and logs work in a real distributed app.

I want it to be easy to run locally with Docker, and also deployable to Kubernetes. It should feel like a normal ecommerce site with a few simple user flows, but the main point is that the services are instrumented well so I can see requests move through the system and inspect the telemetry in whatever backend I connect.

Please make the setup straightforward, include the configs and anything needed to run it end to end, and keep it practical for testing and demos. If you need to look up current OpenTelemetry docs online, do that.