解决报名支付

miniprogram/src/pages/order/detail.tsx

@@ -74,7 +74,7 @@ export default function OrderDetail() {
             <View className='section-title'>商品信息</View>
             <View className='info-row'>
                 <Text className='label'>商品名称</Text>
-                <Text className='value'>{order.config_name || order.course_title}</Text>
+                <Text className='value'>{order.config_name || order.course_title || (order.activity_title ? `报名活动：${order.activity_title}` : '未知商品')}</Text>
             </View>
             <View className='info-row'>
                 <Text className='label'>数量</Text>

miniprogram/src/pages/order/list.tsx

@@ -40,7 +40,9 @@ export default function OrderList() {
              <View className='body'>
                 <Image src={order.config_image || 'https://via.placeholder.com/80'} className='img' mode='aspectFill' />
                 <View className='info'>
-                    <Text className='name'>{order.config_name}</Text>
+                    <Text className='name'>
+                      {order.config_name || order.course_title || (order.activity_title ? `报名活动：${order.activity_title}` : '未知商品')}
+                    </Text>
                     <Text className='qty'>x {order.quantity}</Text>
                 </View>
                 <View className='price'>

miniprogram/src/subpackages/forum/activity/detail.tsx

@@ -145,7 +145,16 @@ const ActivityDetail = () => {
 
   const isFull = activity.max_participants > 0 && (activity.current_signups || 0) >= activity.max_participants
   const isEnded = new Date(activity.end_time) < new Date()
-  const canSignup = activity.is_active && !isFull && !isEnded && !activity.has_signed_up
+  
+  const hasConfirmed = activity.has_signed_up
+  const isPending = activity.my_signup_status === 'pending'
+  const isPaid = activity.is_paid
+
+  const canSignup = activity.is_active && !isEnded && 
+    (
+        (!hasConfirmed && !isPending && !isFull) || 
+        (isPending && isPaid)
+    )
 
   return (
     <View className='activity-detail-page'>
@@ -223,9 +232,11 @@ const ActivityDetail = () => {
             onClick={handleSignup}
         >
             {submitting ? '提交中...' : (
-                activity.has_signed_up ? '您已报名' : (
-                    isEnded ? '活动已结束' : (
-                        isFull ? '名额已满' : '立即报名'
+                hasConfirmed ? '您已报名' : (
+                    isPending ? (isPaid ? '去支付' : '审核中') : (
+                        isEnded ? '活动已结束' : (
+                            isFull ? '名额已满' : '立即报名'
+                        )
                     )
                 )
             )}