49 new TR() keys (the Pager key help, Quiet now, Shift + knob level pill,
emoji and quick-reply hints, lock and theme notes), appended as key<TAB>key
to the 14 files #755 did not translate, and the 3 invariant ones (Backspace,
N, M C H A S) to de.lang, only where the key is absent. i18n-audit is clean;
i18n_builtin.h regenerated: unchanged (placeholders are not baked).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>