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/PlatformStatCard.vue

@@ -0,0 +1,19 @@
+<script setup lang="ts">
+defineProps<{ label: string; value: string | number; suffix?: string; trend?: string; loading?: boolean }>()
+</script>
+
+<template>
+  <div class="bg-white rounded-2xl p-6 shadow-sm border border-gray-100">
+    <div v-if="loading" class="animate-pulse space-y-3">
+      <div class="h-4 bg-gray-200 rounded w-16" />
+      <div class="h-8 bg-gray-200 rounded w-24" />
+    </div>
+    <template v-else>
+      <p class="text-sm text-text-secondary mb-2">{{ label }}</p>
+      <p class="text-3xl font-bold font-mono text-primary">
+        {{ value }}<span v-if="suffix" class="text-lg text-text-secondary ml-1">{{ suffix }}</span>
+      </p>
+      <p v-if="trend" class="text-xs text-accent mt-1">{{ trend }}</p>
+    </template>
+  </div>
+</template>