feature: 增加算子详情页；优化算子上传更新逻辑 (#64)

* feature: 增加算子详情页；优化算子上传更新逻辑

frontend/src/pages/OperatorMarket/operator.const.tsx

@@ -1,9 +1,12 @@
 import { Code } from "lucide-react";
 import { OperatorI } from "./operator.model";
+import {formatDateTime} from "@/utils/unit.ts";
 
 export const mapOperator = (op: OperatorI) => {
   return {
     ...op,
     icon: <Code className="w-full h-full" />,
+    createdAt: formatDateTime(op?.createdAt) || "--",
+    updatedAt: formatDateTime(op?.updatedAt) || formatDateTime(op?.createdAt) || "--",
   };
 };