[2026-03-04][feat][general] Add "Unassigned" translation key, refine ticket and customer contact displays, update type definitions, and adjust ticket creation logic.

👤 Author : Dapanel
🌿 Branch : main
🔗 Commit : 821114f
📅 Date : 2026-03-04
📝 Note :
feat: Add "Unassigned" translation key, refine ticket and customer contact displays, update type definitions, and adjust ticket creation logic.