feat: update payments reload media

frontend/wechat/src/views/ArticleDetail.vue

@@ -80,6 +80,11 @@ const handleBuy = async () => {
                 if (res.err_msg === "get_brand_wcpay_request:ok") {
                     // 支付成功，刷新文章数据
                     fetchArticle();
+                    loadVideoSource();
+                } else if (res.err_msg === "get_brand_wcpay_request:cancel") {
+                    // 用户取消支付
+                    console.log("Payment cancelled");
+                    alert("支付已取消");
                 } else {
                     // 支付失败或取消
                     console.error("Payment failed:", res.err_msg);
@@ -115,12 +120,16 @@ const fetchArticle = async () => {
         });
     } catch (error) {
         console.error("Failed to fetch article:", error);
-        alert("加载失败!");
+        // alert("加载失败!");
     }
 };
 
 const handleBack = () => {
+    try {
         router.back();
+    } catch (error) {
+        router.replace('/');
+    }
 };
 
 onMounted(async () => {