fix: convert string to int when buy/sell

src/trade_server.py

@@ -280,7 +280,7 @@ def buy():
             raise ValueError("Missing required parameters")
 
         price = float(price_str)
-        amount = int(amount_str)
+        amount = int(float(amount_str))
 
         if order_type == ORDER_TYPE_LIMIT and (price <= 0 or amount <= 0):
             raise ValueError("Price and amount must be positive")
@@ -351,7 +351,7 @@ def sell():
             raise ValueError("Missing required parameters")
 
         price = float(price_str)
-        amount = int(amount_str)
+        amount = int(float(amount_str))
 
         if order_type == ORDER_TYPE_LIMIT and (price <= 0 or amount <= 0):
             raise ValueError("Price and amount must be positive")