consumer模块完成度95%，能编译在安卓端运行，在解决数据获取和页面布局问题

pages/mall/consumer/withdraw.uvue

@@ -4,10 +4,10 @@
       <view class="section-title">提现至</view>
       
       <view class="bank-selector" @click="openBankSelector">
-        <view class="bank-info" v-if="selectedBank">
-          <text class="bank-name">{{ selectedBank?.bank_name }}</text>
+        <view class="bank-info" v-if="selectedBank != null">
+          <text class="bank-name">{{ selectedBank.bank_name }}</text>
           <text class="card-type">储蓄卡</text>
-          <text class="card-no">尾号 {{ getTailNumber(selectedBank?.card_number) }}</text>
+          <text class="card-no">尾号 {{ getTailNumber(selectedBank.card_number) }}</text>
         </view>
         <view class="bank-info placeholder" v-else>
           <text>请选择到账银行卡</text>
@@ -34,7 +34,7 @@
 
       <button 
         class="submit-btn" 
-        :disabled="!isValid" 
+        :disabled="isValid === false" 
         :loading="loading"
         @click="submitWithdraw"
       >
@@ -60,7 +60,7 @@
                 <text class="bank-name-popup">{{ item.bank_name }}</text>
                 <text class="card-no-popup">({{ getTailNumber(item.card_number) }})</text>
             </view>
-            <text v-if="selectedBank?.id == item.id" class="check">✓</text>
+            <text v-if="selectedBank != null && selectedBank.id == item.id" class="check">✓</text>
           </view>
           <view class="add-card-btn" @click="navigateToAddCard">
             <text>+ 添加银行卡</text>
@@ -90,26 +90,21 @@ const showBankPopup = ref(false)
 
 const isValid = computed((): boolean => {
     const val = parseFloat(amount.value)
-    if (isNaN(val) || val <= 0) return false
+    // 检查 val 是否有效（替代 isNaN）
+    if (val == null || val <= 0) return false
     if (val > balance.value) return false
     if (selectedBank.value == null) return false
     return true
 })
 
-onMounted(() => {
-    loadData()
-})
-
-const loadData = async () => {
+const loadData = async (): Promise<void> => {
     try {
         const bal = await supabaseService.getUserBalance()
         balance.value = bal
         
-        // 获取银行卡
         const res = await supabaseService.getUserBankCards()
-        // 转换类型
-        const list: BankCard[] = []
-        for(let i=0; i<res.length; i++) {
+        const list: Array<BankCard> = []
+        for(let i: number = 0; i < res.length; i++) {
              const item = res[i]
              
              let id = ''
@@ -121,23 +116,19 @@ const loadData = async () => {
                  bankName = item.getString('bank_name') ?? ''
                  cardNum = item.getString('card_number') ?? ''
              } else {
-                 const m = item as Map<string, any>
-                 const idVal = m.get('id')
-                 id = idVal != null ? (idVal as string) : ''
-                 
-                 const nameVal = m.get('bank_name')
-                 bankName = nameVal != null ? (nameVal as string) : ''
-                 
-                 const numVal = m.get('card_number')
-                 cardNum = numVal != null ? (numVal as string) : ''
+                 const itemObj = item as UTSJSONObject
+                 id = itemObj.getString('id') ?? ''
+                 bankName = itemObj.getString('bank_name') ?? ''
+                 cardNum = itemObj.getString('card_number') ?? ''
              }
 
              if (id != '') {
-                 list.push({
+                 const card: BankCard = {
                      id: id,
                      bank_name: bankName,
                      card_number: cardNum
-                 })
+                 } as BankCard
+                 list.push(card)
              }
         }
         
@@ -150,6 +141,10 @@ const loadData = async () => {
     }
 }
 
+onMounted(() => {
+    loadData()
+})
+
 const getTailNumber = (cardNo: string | null): string => {
     if (cardNo == null) return ''
     if (cardNo.length <= 4) return cardNo
@@ -177,7 +172,7 @@ const navigateToAddCard = () => {
 }
 
 const submitWithdraw = async () => {
-    if (!isValid.value) return
+    if (isValid.value === false) return
     loading.value = true
     
     try {