docs: translate key Russian documents to English

Translated and reorganized:
- docs/research/TERNARY_VS_BINARY_EXPLAINED.md (now English)
- docs/research/TERNARY_VS_BINARY_EXPLAINED_RU.md (Russian original)
- docs/development/ROADMAP.md (now English)
- docs/development/ROADMAP_RU.md (Russian original)

Key content translated:
- Why ternary models on binary hardware is inefficient
- TRINITY native ternary solution
- Development roadmap with all phases
- Module status and progress

Co-authored-by: Ona <no-reply@ona.com>

Author: gHashTag