refactor(字段命名): 统一将created_at和updated_at重命名为created_time和updated_time

重构字段命名以保持一致性，将时间相关字段从created_at/updated_at统一改为created_time/updated_time
同时调整相关查询参数、服务层映射和模板文件中的字段命名
优化权限过滤逻辑，提取为独立的Permission类

backend/app/api/v1/module_system/role/param.py

@@ -13,7 +13,7 @@ class RoleQueryParam:
         self,
         name: Optional[str] = Query(None, description="角色名称"),
         status: Optional[bool] = Query(None, description="是否可用"),
-        creator: Optional[int] = Query(None, description="创建人"),
+        created_id: Optional[int] = Query(None, description="创建人"),
         start_time: Optional[DateTimeStr] = Query(None, description="开始时间", example="2025-01-01 00:00:00"),
         end_time: Optional[DateTimeStr] = Query(None, description="结束时间", example="2025-12-31 23:59:59"),
     ) -> None:
@@ -22,9 +22,9 @@ class RoleQueryParam:
         self.name = ("like", name)
 
         # 精确查询字段
-        self.created_id = creator
+        self.created_id = created_id
         self.status = status
         
         # 时间范围查询
         if start_time and end_time:
-            self.created_at = ("between", (start_time, end_time))
+            self.created_time = ("between", (start_time, end_time))