Phase 0: Evilnat 4.93 true-add spike (language id 0x1E) #3

Prove Ukrainian can be added as language_id 0x1E on Evilnat 4.93 without replacing EN/RU/PL.

See docs/SPIKE-TRUE-ADD.md.

Acceptance

• Українська appears in System Language list
• Selecting it loads XMB texts for id 0x1E
• EN / RU / PL still present and working
• Findings recorded in SPIKE-TRUE-ADD.md