lastEditTime 字段名调整；修改algolia逻辑

lib/utils.js

@@ -117,7 +117,13 @@ export function deepClone(obj) {
   if (obj && typeof obj === 'object') {
     for (const key in obj) {
       if (Object.prototype.hasOwnProperty.call(obj, key)) {
-        newObj[key] = (obj && typeof obj[key] === 'object') ? deepClone(obj[key]) : obj[key]
+        if (obj[key] instanceof Date) { // 判断属性值是否为 Date 对象
+          newObj[key] = new Date(obj[key].getTime()).toISOString() // 直接拷贝引用
+        } else if (obj[key] && typeof obj[key] === 'object') {
+          newObj[key] = deepClone(obj[key])
+        } else {
+          newObj[key] = obj[key]
+        }
       }
     }
   }