Achievements System

Achievements reward players for reaching certain milestones. These appear in-game and trigger Discord logs.

Sample Achievements

ID	Description	Reward
first_delivery	Complete 1 delivery	50 XP, $500
rookie_driver	10 deliveries	100 XP, $1,000
millionaire	Earn $1M total	1000 XP, $25,000
max_level	Reach level 50	2500 XP, $50,000