feat: 新增住建厅价格计算

web/calculators/modifier.py

@@ -1,6 +1,6 @@
 from sqlalchemy import func
 
-from calculators import Calculator, Helper
+from calculators import Calculator
 from commons.models.asphalt_modifier import AsphaltModifier
 
 from commons.models.price_result import PriceResult
@@ -12,10 +12,6 @@ class ModifierCalculator(Calculator):
     unit = "t"
     spec = ""
 
-    def __init__(self, year, month):
-        self.year = year
-        self.month = month
-
     def _get_recommend_price(self):
         query = AsphaltModifier.get_query(self.year, self.month)
         query = query.with_entities(func.avg(AsphaltModifier.price))