feat(projects): add alova examples (#647)

* feat: optimistic subpackage `@sa/alova`

* feat: add alova examples

src/views/alova/scenes/modules/polling-request.vue

@@ -0,0 +1,41 @@
+<script setup lang="ts">
+import { actionDelegationMiddleware, useAutoRequest } from '@sa/alova/client';
+import { ref } from 'vue';
+import { alova } from '@/serviceAlova/request';
+
+const getLastTime = alova.Get<{ time: string }>('/mock/getLastTime', { cacheFor: null });
+const isStop = ref(false);
+const { loading, data } = useAutoRequest(getLastTime, {
+  pollingTime: 3000,
+  initialData: {
+    time: ''
+  },
+  async middleware(_, next) {
+    await actionDelegationMiddleware('autoRequest:3')(_, () => Promise.resolve());
+    if (!isStop.value) {
+      next();
+    }
+  }
+});
+
+const toggleStop = () => {
+  isStop.value = !isStop.value;
+};
+</script>
+
+<template>
+  <NSpace vertical>
+    <NAlert type="info">
+      {{ $t('page.alova.scenes.pollingRequestTips') }}
+    </NAlert>
+    <NButton type="primary" @click="toggleStop">
+      <icon-carbon-play v-if="isStop" class="mr-2" />
+      <icon-carbon-stop v-else class="mr-2" />
+      {{ isStop ? $t('page.alova.scenes.startRequest') : $t('page.alova.scenes.stopRequest') }}
+    </NButton>
+    <NSpace align="center">
+      <span>{{ $t('page.alova.scenes.refreshTime') }}: {{ data.time || '--' }}</span>
+      <NSpin v-if="loading" :size="12" />
+    </NSpace>
+  </NSpace>
+</template>