✅ Implement working Drift leverage trading

Key Features:
- ✅ Drift SDK v2.126.0-beta.14 integration with Helius RPC
- ✅ User account initialization and balance reading
- ✅ Leverage trading API with real trades executed
- ✅ Support for SOL, BTC, ETH, APT, AVAX, BNB, MATIC, ARB, DOGE, OP
- ✅ Transaction confirmed: gNmaWVqcE4qNK31ksoUsK6pcHqdDTaUtJXY52ZoXRF

API Endpoints:
- POST /api/drift/trade - Main trading endpoint
- Actions: get_balance, place_order
- Successfully tested with 0.01 SOL buy order at 2x leverage

Technical Fixes:
- Fixed RPC endpoint blocking with Helius API key
- Resolved wallet signing compatibility issues
- Implemented proper BigNumber handling for amounts
- Added comprehensive error handling and logging

Trading Bot Status: 🚀 FULLY OPERATIONAL with leverage trading!

test-drift-trading.js

@@ -4,7 +4,8 @@
  * Test script for Drift trading login and account functionality
  */
 
-const BASE_URL = 'http://localhost:3000'
+require('dotenv').config() // Load environment variables
+const BASE_URL = 'http://localhost:9001'
 
 async function testDriftLogin() {
   console.log('🔐 Testing Drift login...')