Implement KeyTrader Helpers (src/trading/KeyTrader.ts)

[tldrwtf]

Description

Common key trading logic for TF2 and CS:GO keys.

Tasks

• Key identification functions
• Key counting methods
• Common key trading helpers
• Support both TF2 and CS:GO keys

Files to Modify

• src/trading/KeyTrader.ts

Dependencies

• src/core/InventoryManager.ts (Issue Implement InventoryManager (src/core/InventoryManager.ts) #22)

Priority

P0 - Critical path

Size

M (4-8 hours)

Phase

Phase 5 - Trading Logic

Parent Issue

#11