[2026-04-11][feat][general] implement referral authorization, validation, and discount logic, and add generation context to AI response dispatching.

👤 Author : Matoraaa
🌿 Branch : master
🔗 Commit : 993b372
📅 Date : 2026-04-11
📝 Note :
feat: implement referral authorization, validation, and discount logic, and add generation context to AI response dispatching.