feat(docs): 解除 archived-components 注释并创建 scheduled-tasks 组件

- 解锁 29 个归档组件 (Project Architecture, Rate Limiting, Search Engines, File Storage, Async Task Queues, Scheduled Tasks, Computer Fundamentals)
- 修复 RateLimitAlgorithmDemo build 卡住问题 (移除末尾 reset() 调用)
- 修复 RuntimeEnvironmentDemo eval 安全警告
- 添加 Vite build chunkSizeWarningLimit 配置
- 添加 Vue 组件开发规范文档 (VUE_COMPONENT_RULES.md)

docs/.vitepress/theme/components/appendix/scheduled-tasks/RetryMechanismDemo.vue

@@ -0,0 +1,101 @@
+<template>
+  <div class="retry-demo">
+    <div class="header">
+      <div class="title">重试机制演示</div>
+      <div class="subtitle">观察指数退避重试策略</div>
+    </div>
+    <div class="controls">
+      <button @click="execute" class="execute-btn" :disabled="running">执行任务</button>
+      <button @click="reset" class="reset-btn">重置</button>
+    </div>
+    <div class="config">
+      <div class="config-item">
+        <span class="label">最大重试次数：</span>
+        <span class="value">{{ maxRetries }}</span>
+      </div>
+      <div class="config-item">
+        <span class="label">基础延迟：</span>
+        <span class="value">{{ baseDelay }}ms</span>
+      </div>
+    </div>
+    <div class="attempts">
+      <div class="attempt-label">重试次数：{{ attempts.length }}</div>
+      <div class="attempt-list">
+        <div v-for="(a, i) in attempts" :key="i" :class="['attempt-item', a.success ? 'success' : 'fail']">
+          <span class="attempt-num">第 {{ i + 1 }} 次</span>
+          <span class="attempt-delay" v-if="a.delay">延迟 {{ a.delay }}ms</span>
+          <span class="attempt-status">{{ a.success ? '成功' : '失败' }}</span>
+        </div>
+      </div>
+    </div>
+    <div class="log-area">
+      <div v-for="(log, i) in logs" :key="i" class="log-item">{{ log }}</div>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref } from 'vue'
+
+const running = ref(false)
+const maxRetries = 3
+const baseDelay = 1000
+const attempts = ref([])
+const logs = ref([])
+
+async function execute() {
+  if (running.value) return
+  running.value = true
+  attempts.value = []
+  logs.value = []
+  
+  for (let i = 0; i <= maxRetries; i++) {
+    const delay = Math.min(baseDelay * Math.pow(2, i), 10000)
+    const success = Math.random() > 0.3 || i === maxRetries
+    
+    attempts.value.push({ success, delay: i > 0 ? delay : 0 })
+    logs.value.unshift(`尝试 ${i + 1}/${maxRetries + 1}: ${success ? '成功' : '失败'}${i > 0 ? ` (延迟 ${delay}ms)` : ''}`)
+    
+    if (success) {
+      logs.value.unshift('任务执行成功！')
+      break
+    }
+    if (i < maxRetries) {
+      await new Promise(r => setTimeout(r, 50))
+    }
+  }
+  running.value = false
+}
+
+function reset() {
+  attempts.value = []
+  logs.value = []
+}
+</script>
+
+<style scoped>
+.retry-demo { border: 1px solid var(--vp-c-divider); background: var(--vp-c-bg-soft); border-radius: 12px; padding: 1.5rem; margin: 1.5rem 0; }
+.header { margin-bottom: 1rem; }
+.title { font-weight: 700; font-size: 1.1rem; }
+.subtitle { color: var(--vp-c-text-2); font-size: 0.9rem; }
+.controls { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
+.execute-btn, .reset-btn { padding: 0.4rem 0.8rem; border-radius: 6px; border: 1px solid var(--vp-c-divider); background: var(--vp-c-bg); cursor: pointer; font-size: 0.85rem; }
+.execute-btn { background: var(--vp-c-brand); color: #fff; border-color: var(--vp-c-brand); }
+.execute-btn:disabled { opacity: 0.5; }
+.config { display: flex; gap: 2rem; margin-bottom: 1rem; padding: 0.75rem; background: var(--vp-c-bg); border-radius: 8px; }
+.config-item { display: flex; gap: 0.5rem; }
+.label { color: var(--vp-c-text-2); font-size: 0.85rem; }
+.value { font-weight: 600; }
+.attempts { margin-bottom: 1rem; }
+.attempt-label { font-weight: 600; font-size: 0.9rem; margin-bottom: 0.5rem; }
+.attempt-list { display: flex; gap: 0.5rem; flex-wrap: wrap; }
+.attempt-item { display: flex; flex-direction: column; align-items: center; padding: 0.5rem 0.75rem; border-radius: 6px; min-width: 60px; }
+.attempt-item.success { background: #dcfce7; }
+.attempt-item.fail { background: #fee2e2; }
+.attempt-num { font-size: 0.8rem; font-weight: 600; }
+.attempt-delay { font-size: 0.7rem; color: var(--vp-c-text-2); }
+.attempt-status { font-size: 0.75rem; }
+.log-area { background: var(--vp-c-bg); border-radius: 8px; padding: 0.75rem; max-height: 100px; overflow-y: auto; }
+.log-item { font-size: 0.8rem; padding: 0.25rem 0; border-bottom: 1px solid var(--vp-c-divider); }
+.log-item:last-child { border-bottom: none; }
+</style>