搜索功能增强 + 设置页自动提现 + 部署规则

## 小程序
1. 搜索页面：添加热门章节推荐
2. 我的页面：点击ID可复制
3. 设置页面：添加自动提现开关

## 后台
1. 新增热门章节API (/api/book/hot)
2. 章节保存时自动去掉Markdown标题

## 规则
1. .cursorrules添加完整部署流程

miniprogram/pages/settings/settings.js

@@ -16,6 +16,9 @@ Page({
     wechatId: '',
     alipayAccount: '',
     
+    // 自动提现
+    autoWithdrawEnabled: false,
+    
     // 绑定弹窗
     showBindModal: false,
     bindType: '', // phone | wechat | alipay
@@ -43,16 +46,66 @@ 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
       
       this.setData({
         isLoggedIn: true,
         userInfo,
         phoneNumber,
         wechatId,
-        alipayAccount
+        alipayAccount,
+        autoWithdrawEnabled
       })
     }
   },
+  
+  // 切换自动提现
+  async toggleAutoWithdraw(e) {
+    const enabled = e.detail.value
+    
+    // 检查是否绑定了支付方式
+    if (enabled && !this.data.wechatId && !this.data.alipayAccount) {
+      wx.showToast({ title: '请先绑定微信号或支付宝', icon: 'none' })
+      this.setData({ autoWithdrawEnabled: false })
+      return
+    }
+    
+    // 开启时需要确认
+    if (enabled) {
+      wx.showModal({
+        title: '开启自动提现',
+        content: `收益将自动打款到您的${this.data.alipayAccount ? '支付宝' : '微信'}账户，确认开启吗？`,
+        success: async (res) => {
+          if (res.confirm) {
+            this.setData({ autoWithdrawEnabled: true })
+            wx.setStorageSync('auto_withdraw_enabled', true)
+            
+            // 同步到服务器
+            try {
+              await app.request('/api/user/update', {
+                method: 'POST',
+                data: {
+                  userId: app.globalData.userInfo?.id,
+                  autoWithdraw: true,
+                  withdrawAccount: this.data.alipayAccount || this.data.wechatId
+                }
+              })
+            } catch (e) {
+              console.log('同步自动提现设置失败', e)
+            }
+            
+            wx.showToast({ title: '已开启自动提现', icon: 'success' })
+          } else {
+            this.setData({ autoWithdrawEnabled: false })
+          }
+        }
+      })
+    } else {
+      this.setData({ autoWithdrawEnabled: false })
+      wx.setStorageSync('auto_withdraw_enabled', false)
+      wx.showToast({ title: '已关闭自动提现', icon: 'success' })
+    }
+  },
 
   // 绑定手机号
   bindPhone() {