fix(withdraw): 限制单笔提现金额及调整快捷金额选项

- 添加单笔提现金额上限200元的提示和限制逻辑
- 修改快捷金额选项为50、100和200元
- 保证提现金额不超过可用余额的校验逻辑正常运行

src/dealer/withdraw/index.tsx

@@ -308,6 +308,13 @@ const DealerWithdraw: React.FC = () => {
       // return
     }
 
+    if (amount > 200) {
+      Taro.showToast({
+        title: '单笔最多提现200元',
+        icon: 'none'
+      })
+      return
+    }
     if (amount > available) {
       Taro.showToast({
         title: '提现金额超过可用余额',
@@ -413,7 +420,7 @@ const DealerWithdraw: React.FC = () => {
     }
   }
 
-  const quickAmounts = ['100', '300', '500', '1000']
+  const quickAmounts = ['50', '100', '200']
 
   const setQuickAmount = (amount: string) => {
     formRef.current?.setFieldsValue({amount})