完善下单逻辑及其ui展示，修复支付倒计时显示错误bug

pages/mall/consumer/payment-success.uvue

@@ -28,6 +28,27 @@ const orderId = ref('')
 const orderNo = ref('')
 const amount = ref(0)
 
+const getOptionString = (options: UTSJSONObject, key: string): string => {
+  try {
+    const value = options.getString(key)
+    if (value != null) {
+      return value
+    }
+  } catch (e) {
+  }
+
+  try {
+    const normalized = JSON.parse(JSON.stringify(options)) as UTSJSONObject
+    const value = normalized.getString(key)
+    if (value != null) {
+      return value
+    }
+  } catch (e) {
+  }
+
+  return ''
+}
+
 // 定义 loadOrderInfo 函数（必须在 onMounted 之前）
 const loadOrderInfo = async () => {
   try {
@@ -60,12 +81,12 @@ onLoad((options) => {
   if (options == null) return
 
   const optionsObj = options as UTSJSONObject
-  const orderIdValue = optionsObj.getString('orderId') ?? ''
+  const orderIdValue = getOptionString(optionsObj, 'orderId')
   if (orderIdValue != '') {
     orderId.value = orderIdValue
     orderNo.value = orderIdValue
 
-    const amountValue = optionsObj.getString('amount') ?? ''
+    const amountValue = getOptionString(optionsObj, 'amount')
     if (amountValue != '') {
         const amountStr = amountValue
         console.log('[payment-success] amountStr:', amountStr)