- Add Turkish translations for 16 settings_aux_* / settings_label/desc_auxiliary_models
keys that #2680 added against the 10-locale set (pre-#2772 Turkish baseline).
- Bump test_auxiliary_models_settings.py::test_all_locales_have_auxiliary_keys
from count == 11 to count == 12 (one per locale, now including tr).
Cherry-picked via 3-way apply (rebase had failed on static/index.html
conflict when applied via rebase commit chain; 3-way of the net delta
against stage HEAD applied cleanly).
Co-authored-by: mccxj <mccxj@github.users.noreply.github.com>