🧹 清理重复配置文件

- 删除根目录中重复的 NestJS 配置文件
- 删除 tsconfig.json, tsconfig.build.json, eslint.config.mjs, .prettierrc
- 保留 wwjcloud-nest/ 目录中的完整配置
- 避免配置冲突，确保项目结构清晰

admin-vben/apps/web-antd/src/views/demos/features/vue-query/concurrency-caching.vue

@@ -0,0 +1,61 @@
+<script lang="ts" setup>
+import type { Recordable } from '@vben/types';
+
+import { useQuery } from '@tanstack/vue-query';
+
+import { useVbenForm } from '#/adapter/form';
+import { getMenuList } from '#/api';
+
+const queryKey = ['demo', 'api', 'options'];
+const count = 4;
+
+const { dataUpdatedAt, promise: fetchDataFn } = useQuery({
+  // 在组件渲染期间预取数据
+  experimental_prefetchInRender: true,
+  // 获取接口数据的函数
+  queryFn: getMenuList,
+  queryKey,
+  // 每次组件挂载时都重新获取数据。如果不需要每次都重新获取就不要设置为always
+  refetchOnMount: 'always',
+  // 缓存时间
+  staleTime: 1000 * 60 * 5,
+});
+
+async function fetchOptions() {
+  return await fetchDataFn.value;
+}
+
+const schema = [];
+
+for (let i = 0; i < count; i++) {
+  schema.push({
+    component: 'ApiSelect',
+    componentProps: {
+      api: fetchOptions,
+      class: 'w-full',
+      filterOption: (input: string, option: Recordable<any>) => {
+        return option.label.toLowerCase().includes(input.toLowerCase());
+      },
+      labelField: 'name',
+      showSearch: true,
+      valueField: 'id',
+    },
+    fieldName: `field${i}`,
+    label: `Select ${i}`,
+  });
+}
+
+const [Form] = useVbenForm({
+  schema,
+  showDefaultActions: false,
+});
+</script>
+<template>
+  <div>
+    <div class="mb-2 flex gap-2">
+      <div>以下{{ count }}个组件共用一个数据源。</div>
+      <div>缓存更新时间：{{ new Date(dataUpdatedAt).toLocaleString() }}</div>
+    </div>
+    <Form />
+  </div>
+</template>