1

backend/app/crypto_agent/crypto_agent.py

@@ -2128,15 +2128,30 @@ class CryptoAgent:
         Returns:
             (positions, account, pending_orders)
         """
+        # 1. 余额（独立 try，确保余额始终可用）
         try:
             bg_state = self.bitget.get_account_state()
+        except Exception as e:
+            logger.error(f"获取 Bitget 余额失败: {e}")
+            bg_state = {"account_value": 0, "total_margin_used": 0, "available_balance": 0}
 
+        logger.info(
+            f"[Bitget] 余额: account_value=${bg_state['account_value']:.2f}, "
+            f"available=${bg_state['available_balance']:.2f}"
+        )
+
+        # 2. 持仓（独立 try）
         position_list = []
+        try:
             for pos in self.bitget.get_open_positions():
                 coin = pos["coin"]
                 size = pos["size"]
                 if size != 0:
+                    tp_sl = {}
+                    try:
                         tp_sl = self.bitget.get_tp_sl_prices(coin)
+                    except Exception as e:
+                        logger.warning(f"获取 {coin} TP/SL 失败（不影响交易）: {e}")
                     position_list.append({
                         'symbol': f"{coin}USDT",
                         'side': 'buy' if size > 0 else 'sell',
@@ -2146,7 +2161,10 @@ class CryptoAgent:
                         'stop_loss': tp_sl.get('stop_loss'),
                         'take_profit': tp_sl.get('take_profit'),
                     })
+        except Exception as e:
+            logger.error(f"获取 Bitget 持仓失败: {e}")
 
+        # 3. 构建 account 字典
         total_position_value = sum(
             p['holding'] * p['entry_price'] for p in position_list
         )
@@ -2165,8 +2183,10 @@ class CryptoAgent:
         else:
             account['current_total_leverage'] = 0
 
-            all_orders = self.bitget.get_open_orders()
+        # 4. 挂单（独立 try）
         pending_orders = []
+        try:
+            all_orders = self.bitget.get_open_orders()
             for order in all_orders:
                 pending_orders.append({
                     'order_id': order.get('order_id'),
@@ -2178,13 +2198,11 @@ class CryptoAgent:
                     'is_reduce_only': order.get('is_reduce_only', False),
                     'created_at': order.get('created_at'),
                 })
+        except Exception as e:
+            logger.error(f"获取 Bitget 挂单失败: {e}")
 
         return position_list, account, pending_orders
 
-        except Exception as e:
-            logger.error(f"获取 Bitget 状态失败: {e}")
-            return [], {}, []
-
     def _calculate_position_size(self, signal: Dict[str, Any],
                                  account: Dict[str, Any],
                                  platform_name: str) -> tuple:
@@ -2377,14 +2395,14 @@ class CryptoAgent:
         if remaining_leverage <= 0:
             return False, f"已达最大杠杆 {current_leverage:.1f}x/{max_leverage}x"
 
-        # 2. 可用余额检查
+        # 2. 可用余额检查（仅警告，不阻止执行——由交易所做最终校验）
         available = account.get('available', account.get('available_balance', 0))
         symbol = signal.get('symbol', '').replace('USDT', '').upper()
         rules = self.PLATFORM_RULES.get(platform_name, {})
         min_margin = rules.get('min_margin', {}).get(symbol, 10)
 
-        if available < min_margin:
+        if available > 0 and available < min_margin:
-            return False, f"可用余额 ${available:.2f} < 最小保证金 ${min_margin}"
+            logger.warning(f"[{platform_name}] 余额偏低 ${available:.2f} < ${min_margin}，仍尝试执行")
 
         # 3. 持仓数量限制（每个币种最多3个持仓+挂单）
         symbol_orders = [o for o in positions + pending_orders if o.get('symbol') == signal.get('symbol')]