PDF需求全面修复 - v1.15

## 后端
1. 数据概览改为从API获取真实用户/订单数
2. 提现API增加容错和withdrawals表自动创建

## 小程序
1. 设置页：去掉支付宝，微信号直接输入
2. 我的页面：优先显示微信号
3. 找伙伴-资源对接：新增三项填写（能帮到什么/需要什么/擅长什么）

## 部署配置
- 更新为小型宝塔 42.194.232.22

app/admin/page.tsx

@@ -3,22 +3,39 @@
 import { useState, useEffect } from "react"
 import { useRouter } from "next/navigation"
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
-import { useStore } from "@/lib/store"
 import { Users, BookOpen, ShoppingBag, TrendingUp, RefreshCw, ChevronRight } from "lucide-react"
 
 export default function AdminDashboard() {
   const router = useRouter()
-  const { getAllUsers, getAllPurchases } = useStore()
   const [mounted, setMounted] = useState(false)
   const [users, setUsers] = useState<any[]>([])
   const [purchases, setPurchases] = useState<any[]>([])
 
+  // 从API获取数据
+  async function loadData() {
+    try {
+      // 获取用户数据
+      const usersRes = await fetch('/api/db/users')
+      const usersData = await usersRes.json()
+      if (usersData.success && usersData.users) {
+        setUsers(usersData.users)
+      }
+      
+      // 获取订单数据
+      const ordersRes = await fetch('/api/orders')
+      const ordersData = await ordersRes.json()
+      if (ordersData.success && ordersData.orders) {
+        setPurchases(ordersData.orders)
+      }
+    } catch (e) {
+      console.log('加载数据失败', e)
+    }
+  }
+
   useEffect(() => {
     setMounted(true)
-    // 客户端加载数据
-    setUsers(getAllUsers())
-    setPurchases(getAllPurchases())
-  }, [getAllUsers, getAllPurchases])
+    loadData()
+  }, [])
 
   // 防止Hydration错误：服务端渲染时显示加载状态
   if (!mounted) {