切换到实盘环境

- HL: WS/REST 从 testnet 切换到 mainnet
- BG: 删除 paptrading header（实盘 key 不以 bg_ 前缀区分）
- config: 调整交易参数
- scanner: 更新跟踪币种列表

exchange/hyperliquid_trade.go

@@ -45,7 +45,7 @@ func NewHyperLiquidTrade(privateKeyHex, mainAddress, apiAddress string) (*HyperL
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
-	info := hl.NewInfo(ctx, hl.TestnetAPIURL, true, nil, nil, nil)
+	info := hl.NewInfo(ctx, hl.MainnetAPIURL, true, nil, nil, nil)
 
 	return &HyperLiquidTrade{
 		privateKey:  privKey,
@@ -75,7 +75,7 @@ func (h *HyperLiquidTrade) initExchange() error {
 		return fmt.Errorf("spot meta: %w", err)
 	}
 
-	h.exchange = hl.NewExchange(ctx, h.privateKey, hl.TestnetAPIURL, meta, "", h.mainAddress, spotMeta, nil)
+	h.exchange = hl.NewExchange(ctx, h.privateKey, hl.MainnetAPIURL, meta, "", h.mainAddress, spotMeta, nil)
 	return nil
 }