fix:完善aster账户净值和盈亏计算|Improve the calculation of the net value and profit/loss of the aster account (#695)

Co-authored-by: LindenWang <linden@Lindens-MacBookPro-2.local>

mcp/client.go

@@ -96,7 +96,7 @@ func (client *Client) SetQwenAPIKey(apiKey string, customURL string, customModel
 		client.Model = customModel
 		log.Printf("🔧 [MCP] Qwen 使用自定义 Model: %s", customModel)
 	} else {
-		client.Model = "qwen3-max" 
+		client.Model = "qwen3-max"
 		log.Printf("🔧 [MCP] Qwen 使用默认 Model: %s", client.Model)
 	}
 	// 打印 API Key 的前后各4位用于验证