ZhouYongyou 93e9b505cf fix(api): query actual exchange balance when creating trader ...

Problem:
- Users could input arbitrary initial balance when creating traders
- This didn't reflect the actual available balance in exchange account
- Could lead to incorrect position sizing and risk calculations
Solution:
- Before creating trader, query exchange API for actual balance
- Use GetBalance() from respective trader implementation:
  * Binance: NewFuturesTrader + GetBalance()
  * Hyperliquid: NewHyperliquidTrader + GetBalance()
  * Aster: NewAsterTrader + GetBalance()
- Extract 'available_balance' or 'balance' from response
- Override user input with actual balance
- Fallback to user input if query fails
Changes:
- Added 'nofx/trader' import
- Query GetExchanges() to find matching exchange config
- Create temporary trader instance based on exchange type
- Call GetBalance() to fetch actual available balance
- Use actualBalance instead of req.InitialBalance
- Comprehensive error handling with fallback logic
Benefits:
- ✅ Ensures accurate initial balance matches exchange account
- ✅ Prevents user errors in balance input
- ✅ Improves position sizing accuracy
- ✅ Maintains data integrity between system and exchange
Example logs:
✓ 查询到交易所实际余额: 150.00 USDT (用户输入: 100.00 USDT)
⚠️ 查询交易所余额失败，使用用户输入的初始资金: connection timeout
Co-Authored-By: tinkle-community <tinklefund@gmail.com>

2025-11-04 16:28:38 +08:00

..

server.go

fix(api): query actual exchange balance when creating trader

2025-11-04 16:28:38 +08:00