fix: 更新金额输入字段的绑定方式，使用v-slot以支持双向数据绑定

src/views/withdraw/index.vue

@@ -212,16 +212,15 @@ async function onSubmit(values: GenericObject) {
           </Field>
 
           <div>
-            <Field name="amount">
+            <Field v-slot="{ value, handleChange }" name="amount">
-              <template #default="{ field }">
               <ui-input-label
-                  v-bind="field"
+                :model-value="value"
                 :label="t('withdraw.amount')"
                 :placeholder="t('withdraw.enterAmountMax', { amount: maxAmount })"
                 type="number"
                 inputmode="numeric"
+                @ion-input="(e: any) => handleChange(e.target.value)"
               />
-              </template>
             </Field>
             <ErrorMessage name="amount" class="text-red-500 text-xs mt-1" />
           </div>