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/composables/useApi.ts

@@ -0,0 +1,54 @@
+type ApiResponse<T> = {
+  code: number | string
+  message: string
+  data: T
+  requestId?: string
+  timestamp?: number
+}
+
+const BASE = typeof window !== 'undefined'
+  ? window.location.protocol + '//' + window.location.host + '/api/hss'
+  : '/api/hss'
+
+export function useApi() {
+  function headers(extra?: Record<string, string>): Record<string, string> {
+    const h: Record<string, string> = { 'Content-Type': 'application/json', 'X-Tenant-Id': '1', 'X-Org-Id': '1' }
+    if (typeof window !== 'undefined') {
+      const stored = localStorage.getItem('hss_platform_user')
+      if (stored) {
+        try {
+          const u = JSON.parse(stored)
+          h['X-User-Id'] = u.userId
+          h['X-User-Role'] = u.userRole
+          h['X-Tenant-Id'] = u.tenantId
+          h['X-Org-Id'] = u.orgId
+        } catch {}
+      }
+    }
+    return { ...h, ...extra }
+  }
+
+  async function get<T>(path: string): Promise<T> {
+    const res = await $fetch<ApiResponse<T>>(BASE + path, { headers: headers() })
+    if (typeof res.code === 'string' ? (res.code !== '200' && res.code !== 'SUCCESS') : res.code !== 200) {
+      throw new Error(res.message || 'API error')
+    }
+    return res.data
+  }
+
+  async function post<T>(path: string, body?: any): Promise<T> {
+    const h = headers()
+    if (body) h['Idempotency-Key'] = 'web-' + Date.now() + '-' + Math.random().toString(36).slice(2, 8)
+    const res = await $fetch<ApiResponse<T>>(BASE + path, { method: 'POST', headers: h, body: body ? JSON.stringify(body) : undefined })
+    if (typeof res.code === 'string' ? (res.code !== '200' && res.code !== 'SUCCESS') : res.code !== 200) {
+      throw new Error(res.message || 'API error')
+    }
+    return res.data
+  }
+
+  async function rawGet<T>(path: string): Promise<ApiResponse<T>> {
+    return await $fetch<ApiResponse<T>>(BASE + path, { headers: headers() })
+  }
+
+  return { get, post, rawGet }
+}