feat: 初始化居家上门服务系统完整项目代码

- Spring Boot 后端服务 (hss-home-service)
- delivery-miniapp 配送小程序
- website 官网 (Nuxt)
- docs 架构设计文档
- Docker 容器化部署配置

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

hss-home-service/website/components/ValueMetrics.vue

@@ -0,0 +1,14 @@
+<script setup lang="ts">
+import { metrics } from '~/data/siteContent'
+</script>
+
+<template>
+  <div class="grid grid-cols-2 lg:grid-cols-4 gap-6">
+    <div v-for="m in metrics" :key="m.label"
+      class="bg-white rounded-2xl p-8 text-center shadow-sm border border-gray-100">
+      <div class="text-4xl font-bold font-mono text-primary mb-3">{{ m.value }}</div>
+      <div class="font-semibold text-text-primary mb-1">{{ m.label }}</div>
+      <div class="text-xs text-text-secondary">{{ m.desc }}</div>
+    </div>
+  </div>
+</template>