修复自动下架功能，确保label字段正确设置为1

Reject.js

@@ -91,27 +91,54 @@ setInterval(async () => {
         console.log('检查需要自动下架的商品...');
         const connection = await pool.getConnection();
         
-        // 查找所有状态为published且autoOfflineTime已过的商品
         const currentTime = new Date();
-        const [productsToOffline] = await connection.query(
-            'SELECT id FROM products WHERE status = ? AND autoOfflineTime <= ? AND autoOfflineTime IS NOT NULL',
-            ['published', currentTime]
+        
+        // 查找所有状态为published的商品
+        const [publishedProducts] = await connection.query(
+            'SELECT id, autoOfflineTime, autoOfflineHours, created_at, updated_at FROM products WHERE status = ?',
+            ['published']
         );
         
+        const productsToOffline = [];
+        
+        // 检查每个商品是否需要自动下架
+        for (const product of publishedProducts) {
+            let shouldOffline = false;
+            
+            if (product.autoOfflineTime) {
+                // 情况1：有明确的autoOfflineTime
+                const autoOfflineTime = new Date(product.autoOfflineTime);
+                if (currentTime >= autoOfflineTime) {
+                    shouldOffline = true;
+                }
+            } else if (product.autoOfflineHours && !isNaN(product.autoOfflineHours) && product.autoOfflineHours > 0) {
+                // 情况2：只有autoOfflineHours，计算自动下架时间
+                const baseTime = product.updated_at ? new Date(product.updated_at) : new Date(product.created_at);
+                const offlineTime = new Date(baseTime.getTime() + product.autoOfflineHours * 60 * 60 * 1000);
+                if (currentTime >= offlineTime) {
+                    shouldOffline = true;
+                }
+            }
+            
+            if (shouldOffline) {
+                productsToOffline.push(product.id);
+            }
+        }
+        
         if (productsToOffline.length > 0) {
             console.log(`发现${productsToOffline.length}个商品需要自动下架`);
             
             // 批量更新商品状态为sold_out
-            for (const product of productsToOffline) {
+            for (const productId of productsToOffline) {
                 await connection.query(
                     'UPDATE products SET status = ?, label = 1, updated_at = NOW() WHERE id = ?',
-                    ['sold_out', product.id]
+                    ['sold_out', productId]
                 );
                 
                 // 发送WebSocket消息通知所有客户端
                 broadcastMessage({
                     type: 'supply_status_change',
-                    supplyId: product.id,
+                    supplyId: productId,
                     action: 'unpublish',
                     status: 'sold_out'
                 });