feat: 完善平台总后台模块

frontend/platform_admin/src/views/not-found/index.vue

@@ -0,0 +1,30 @@
+<template>
+  <div class="content">
+    <a-result class="result" status="404" :subtitle="'not found'"> </a-result>
+    <div class="operation-row">
+      <a-button key="back" type="primary" @click="back"> back </a-button>
+    </div>
+  </div>
+</template>
+
+<script lang="ts" setup>
+import { useRouter } from 'vue-router';
+
+const router = useRouter();
+const back = () => {
+  // warning: Go to the node that has the permission
+  router.push({ name: 'Workplace' });
+};
+</script>
+
+<style scoped lang="less">
+  .content {
+    // padding-top: 100px;
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    margin-left: -95px;
+    margin-top: -121px;
+    text-align: center;
+  }
+</style>