# DBG-10 environment-parity reproduction

This deterministic fixture runs one layout-resolution matrix under development,
test, and production labels. The environment-independent resolver must return
the same result for the same business inputs.

Run:

```sh
./run.sh
```

A legacy mutation makes the production default differ and must be rejected.
The fixture is synthetic. It does not run the retained application, use
production data, render documents, or prove infrastructure parity.