- docs/models.md: retitled the '/model and --list-models' section and
updated the bullet to describe 'omp models' plus 'omp models canonical'.
- docs/providers.md: updated the troubleshooting note to validate
models.yml with 'omp models' (and 'omp models find <substr>').
- packages/coding-agent/CHANGELOG.md: noted the doc fix under Unreleased.
Fixes#2458