修复API + 优化用户体验

## 新增API
1. /api/user/update - 用户信息更新
2. /api/withdraw - 提现功能

## 我的页面
1. 头像使用微信原生chooseAvatar
2. 昵称使用input type="nickname"一键获取
3. ID点击复制

## 设置页面
1. 新增收货地址一键获取
2. 自动提现默认开启

## 找伙伴
1. "创业合伙"改为"找伙伴"
2. 所有匹配类型都从数据库匹配

miniprogram/pages/settings/settings.js

@@ -15,9 +15,10 @@ Page({
     phoneNumber: '',
     wechatId: '',
     alipayAccount: '',
+    address: '',
     
-    // 自动提现
-    autoWithdrawEnabled: false,
+    // 自动提现（默认开启）
+    autoWithdrawEnabled: true,
     
     // 绑定弹窗
     showBindModal: false,
@@ -46,7 +47,9 @@ Page({
       const phoneNumber = wx.getStorageSync('user_phone') || userInfo.phone || ''
       const wechatId = wx.getStorageSync('user_wechat') || userInfo.wechat || ''
       const alipayAccount = wx.getStorageSync('user_alipay') || userInfo.alipay || ''
-      const autoWithdrawEnabled = wx.getStorageSync('auto_withdraw_enabled') || false
+      const address = wx.getStorageSync('user_address') || userInfo.address || ''
+      // 默认开启自动提现
+      const autoWithdrawEnabled = wx.getStorageSync('auto_withdraw_enabled') !== false
       
       this.setData({
         isLoggedIn: true,
@@ -54,11 +57,48 @@ Page({
         phoneNumber,
         wechatId,
         alipayAccount,
+        address,
         autoWithdrawEnabled
       })
     }
   },
   
+  // 一键获取收货地址
+  async getAddress() {
+    try {
+      const res = await wx.chooseAddress()
+      if (res) {
+        const fullAddress = `${res.provinceName}${res.cityName}${res.countyName}${res.detailInfo}`
+        
+        wx.setStorageSync('user_address', fullAddress)
+        this.setData({ address: fullAddress })
+        
+        // 更新用户信息
+        if (app.globalData.userInfo) {
+          app.globalData.userInfo.address = fullAddress
+          wx.setStorageSync('userInfo', app.globalData.userInfo)
+        }
+        
+        // 同步到服务器
+        this.syncProfileToServer()
+        
+        wx.showToast({ title: '地址已获取', icon: 'success' })
+      }
+    } catch (e) {
+      console.log('[Settings] 获取地址失败:', e)
+      if (e.errMsg?.includes('auth deny')) {
+        wx.showModal({
+          title: '需要授权',
+          content: '请允许获取收货地址',
+          confirmText: '去设置',
+          success: (res) => {
+            if (res.confirm) wx.openSetting()
+          }
+        })
+      }
+    }
+  },
+  
   // 切换自动提现
   async toggleAutoWithdraw(e) {
     const enabled = e.detail.value

miniprogram/pages/settings/settings.wxml

@@ -67,6 +67,21 @@
             <text class="bind-btn" wx:else>去绑定</text>
           </view>
         </view>
+        
+        <!-- 收货地址 - 微信一键获取 -->
+        <view class="bind-item" bindtap="getAddress">
+          <view class="bind-left">
+            <view class="bind-icon address-icon">📍</view>
+            <view class="bind-info">
+              <text class="bind-label">收货地址</text>
+              <text class="bind-value address-text">{{address || '未绑定'}}</text>
+            </view>
+          </view>
+          <view class="bind-right">
+            <text class="bind-check" wx:if="{{address}}">✓</text>
+            <text class="bind-btn" wx:else>一键获取</text>
+          </view>
+        </view>
       </view>
     </view>