chore: translate 2026-04-19-deep-inspection-russia-cyber-threat-defence-ukraina (he, ja, ko, zh)

Batch 3 translations for deep-inspection article on Sweden joining Ukraine aggression tribunal.
- Hebrew (he, RTL): Complete translation with dir=rtl and analysis-references
- Japanese (ja): Complete translation with analysis-references
- Korean (ko): Complete translation with analysis-references
- Chinese (zh): Complete translation with analysis-references

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: github-actions[bot]