feat: 使用 showToast 和 showSuccessToast 替换 toastController，简化提示逻辑

src/views/product/components/subscribe.vue

@@ -43,20 +43,12 @@ async function confirmSubscribe() {
   }
 
   if (!paymentPassword.value) {
-    toastController.create({
-      message: "请输入交易密码",
-      duration: 2000,
-      position: "top",
-    }).then(toast => toast.present());
+    showToast("请输入交易密码");
     return;
   }
 
   if (!currentWallet.value || Number(currentWallet.value?.available) < Number(product.value.price)) {
-    toastController.create({
-      message: "所选钱包余额不足，请选择其他钱包或充值",
-      duration: 2000,
-      position: "top",
-    }).then(toast => toast.present());
+    showToast("所选钱包余额不足，请选择其他钱包或充值");
     return;
   }
 
@@ -65,17 +57,10 @@ async function confirmSubscribe() {
     walletTypeId: selectedWallet.value,
     tradePassword: paymentPassword.value,
   }));
-  const toast = await toastController.create({
-    message: "产品申购成功！",
-    duration: 2000,
-    position: "bottom",
-    color: "success",
-  });
-  await toast.present();
+  showSuccessToast("产品申购成功！");
   setTimeout(() => {
-    toast.dismiss();
     emit("success");
-  }, 2000);
+  }, 1000);
 }
 </script>