Russian spelling dictionary 1.0.5

Version 1.0.5 substantially improves Russian correction suggestions without changing the 550,291 dictionary entries or their morphology.

• Held-out correct top-1 suggestions: 109 → 146.
• Held-out correct top-5 suggestions: 165 → 192.
• Held-out targets found at any rank: 169 → 197.
• сабака → собака is now ranked first in Hunspell, Firefox, and LibreOffice.
• Mozilla XPI validation: 0 errors, 0 warnings, 0 notices.
• CSpell: 2,342,788 generated UTF-8 forms; word-list bytes are unchanged from 1.0.4.

Release assets include the Mozilla XPI, LibreOffice OXT, CSpell word list, and a standalone Hunspell ZIP.