feat(app): 优化返点计算逻辑

- 引入多个可能的返点列名，按优先级顺序查找
- 在每个 sheet 中动态确定使用哪个列名- 提高了代码的灵活性和鲁棒性

app/vc/spa.py

@@ -214,8 +214,20 @@ class Spa(AutoInterface):
         计算每个sheet总金额
         """
         total_amount = 0
-        rebate_column = "Rebate In Agreement Currency"
+        # 定义可能的列名（按优先级顺序）
+        possible_columns = [
+            "Rebate In Agreement Currency",
+            "Vendor Funding In Agreement Currency"
+        ]
+
         for sheet_name, df in sheets.items():
+            # 确定要使用的列名
+            rebate_column = None
+            for col in possible_columns:
+                if col in df.columns:
+                    rebate_column = col
+                    break
+
             # 找到第一个空行（NaN值）的索引
             first_empty = df[rebate_column].isna().idxmax()
             if pd.isna(first_empty) or first_empty == 0: