Fold Cyrillic only in the ruRU glue layer so the stock delete confirmation accepts typed mixed case while preserving its button and Enter guards.
Verified on Windows with actual stock GlueXML and the ruRU MPQ: reproduced the rejected title-case confirmation before the fix; engine-free offline checks pass for 9 Russian and 7 English inputs, button/Enter dispatch, and dialog reset. The new application regression body also passes through the engine-free loader adapter. cargo fmt --all -- --check and git diff --check pass. Full workspace/app gates and production build were not run for this change; no player account or server deletion used.
sindoring