feat(db): 优化表字段及其类型

core/db/crud.py

@@ -32,7 +32,7 @@ class CRUD:
     async def get_paginated(self, filters: dict, page: int = 1, page_size: int = 10) -> Tuple[List[Model], int]:
         async with self.session.begin():
             filter_conditions = self.build_filter_conditions(filters) if filters else []
-            query = select(self.model).filter(*filter_conditions).order_by(desc(self.model.insert_time))
+            query = select(self.model).filter(*filter_conditions).order_by(desc(self.model.created_at))
 
             total_query = select(func.count()).select_from(self.model).filter(*filter_conditions)
             total_result = await self.session.execute(total_query)
@@ -45,16 +45,10 @@ class CRUD:
         return records, total
 
     async def get_grouped_count(self, group_by_field: str, filters: Dict[str, Any] = None) -> Dict[Any, int]:
-        # 构建过滤条件
         filter_conditions = self.build_filter_conditions(filters) if filters else []
-
-        # 确定分组字段
         group_by = getattr(self.model, group_by_field)
-
-        # 构建查询
         query = select(group_by, func.count()).filter(*filter_conditions).group_by(group_by)
 
-        # 执行查询并获取结果
         async with self.session.begin():
             result = await self.session.execute(query)
             records = result.all()
@@ -98,7 +92,7 @@ class CRUD:
                 if any([
                     value is None,
                     value == getattr(record, key),
-                    key in ['insert_time', 'update_time']
+                    key in ['created_at', 'updated_at']
                 ]):
                     continue
                 setattr(record, key, value)