fix: resolve MaterialBase sku property error and add dynamic refresh after stock adjustment

inventory-backend/app/api/v1/inbound/stock.py

@@ -560,12 +560,17 @@ def export_stocktake():
 
             # 安全获取 sku
             stock_sku = getattr(stock, 'sku', None) or getattr(stock, 'SKU', None) or '-'
-            
-            # 尝试从MaterialBase获取名称
+
+            # 使用 base_id 或 material_id 关联查询物料基础表（安全方式）
             material = None
-            if stock_sku and stock_sku != '-':
-                material = MaterialBase.query.filter_by(sku=stock_sku).first()
-            
+            base_id = getattr(stock, 'base_id', None) or getattr(stock, 'material_id', None)
+            if base_id:
+                material = MaterialBase.query.get(base_id)
+            else:
+                # 如果没有 base_id，尝试用 code 兜底查询
+                if hasattr(MaterialBase, 'code') and stock_sku != '-':
+                    material = MaterialBase.query.filter_by(code=stock_sku).first()
+
             return {
                 'name': material.name if material else stock_sku,
                 'sku': stock_sku,