fix: filters兼容dict格式(非list)，避免iter string时.get()报AttributeError

pricing/pricing.py

@@ -621,8 +621,16 @@ order by b.enabled_date desc"""
 			
 			# 检查 filters 区间条件（新格式，AND逻辑：所有filter_item都要匹配）
 			# 带 unit_prices 的 filter_item 是 tiered 定价，跳过（由后面第二块处理）
+			# 兼容两种格式：list of dicts 或 dict
 			if p_ok and is_new_format and 'filters' in p:
-				for filter_item in p['filters']:
+				raw_filters = p['filters']
+				if isinstance(raw_filters, dict):
+					filter_items = [raw_filters]
+				else:
+					filter_items = raw_filters
+				for filter_item in filter_items:
+					if not isinstance(filter_item, dict):
+						continue
 					if 'unit_prices' in filter_item:
 						continue  # tiered定价项，不在此处检查
 					item_ok = True