consumer模块完成度95%，检查消费者前端bug并修复

pages/mall/consumer/order-detail.uvue

@@ -746,21 +746,16 @@ const shareForFree = async () => {
 // 使用 onBackPress 拦截物理返回键和系统导航栏返回
 onBackPress((_): boolean => {
     const pages = getCurrentPages()
+    console.log('[order-detail onBackPress] pages count:', pages.length)
+    
     if (pages.length > 1) {
-        // @ts-ignore
-        const prevPage = pages[pages.length - 2]
-        // @ts-ignore
-        const prevRoute: string = prevPage.route ?? ''
-        
-        if (prevRoute.includes('product-detail') || prevRoute.includes('payment')) {
-            uni.redirectTo({ url: '/pages/mall/consumer/orders' })
-            return true
-        }
-    } else {
-        uni.redirectTo({ url: '/pages/mall/consumer/orders' })
-        return true
+        // 正常返回上一页
+        return false
     }
-    return false
+    
+    // 如果只有当前页面，跳转到 orders
+    uni.redirectTo({ url: '/pages/mall/consumer/orders' })
+    return true
 })
 
 // 生命周期 - 在所有函数定义之后