Add a new `display.showProvider` setting (default true) under the
Display group. When enabled, the active model in the bottom-right
footer renders as `provider/id` (e.g. `opencode-go-3/deepseek-v4-flash`)
instead of just `id`. Disambiguates which provider is serving a model
when several are configured under different keys.
omp-fork
9e98229684