feat: 优化系统配置和统计功能

- 系统配置支持显示完整的 Builder API Key（不再部分显示）
- Secret 和 Passphrase 使用密码输入框，支持眼睛图标切换显示/隐藏
- 移除已配置提示，简化用户界面
- 修复总卖出金额统计：使用 SellMatchDetail 计算，确保准确性
- 修复 matchSellOrder 中价格不一致问题：matchDetails 使用实际卖出价格
- 移动端 Leader 列表移除网站显示行
- 优化订单创建前订单簿匹配检查，避免 FAK 订单失败

frontend/src/pages/LeaderList.tsx

@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react'
 import { useNavigate } from 'react-router-dom'
 import { Card, Table, Button, Space, Tag, Popconfirm, message, List, Empty, Spin, Divider, Typography } from 'antd'
-import { PlusOutlined, EditOutlined, DeleteOutlined, LinkOutlined, GlobalOutlined } from '@ant-design/icons'
+import { PlusOutlined, EditOutlined, DeleteOutlined, GlobalOutlined } from '@ant-design/icons'
 import { useTranslation } from 'react-i18next'
 import { apiService } from '../services/api'
 import type { Leader } from '../types'
@@ -225,23 +225,6 @@ const LeaderList: React.FC = () => {
                         </div>
                       )}
                       
-                      {/* 网站 */}
-                      {leader.website && (
-                        <div style={{ marginBottom: '12px' }}>
-                          <Text type="secondary" style={{ fontSize: '12px' }}>
-                            {t('leaderList.website') || '网站'}：
-                          </Text>
-                          <a 
-                            href={leader.website} 
-                            target="_blank" 
-                            rel="noopener noreferrer"
-                            style={{ fontSize: '12px', marginLeft: '4px' }}
-                          >
-                            <LinkOutlined /> {leader.website}
-                          </a>
-                        </div>
-                      )}
-                      
                       <Divider style={{ margin: '12px 0' }} />
                       
                       {/* 跟单关系数 */}

frontend/src/pages/SystemSettings.tsx

@@ -348,10 +348,11 @@ const SystemSettings: React.FC = () => {
       if (response.data.code === 0 && response.data.data) {
         const config = response.data.data
         setSystemConfig(config)
+        // 将已配置的值填充到输入框中
         relayerForm.setFieldsValue({
-          builderApiKey: '',
-          builderSecret: '',
-          builderPassphrase: '',
+          builderApiKey: config.builderApiKeyDisplay || '',
+          builderSecret: config.builderSecretDisplay || '',
+          builderPassphrase: config.builderPassphraseDisplay || '',
         })
         autoRedeemForm.setFieldsValue({
           autoRedeemEnabled: config.autoRedeemEnabled
@@ -685,30 +686,32 @@ const SystemSettings: React.FC = () => {
             <Form.Item
               label={t('builderApiKey.apiKey')}
               name="builderApiKey"
-              help={systemConfig?.builderApiKeyConfigured ? t('builderApiKey.apiKeyHelp') : t('builderApiKey.apiKeyPlaceholder')}
             >
               <Input 
-                placeholder={systemConfig?.builderApiKeyConfigured ? t('builderApiKey.apiKeyHelp') : t('builderApiKey.apiKeyPlaceholder')}
+                placeholder={t('builderApiKey.apiKeyPlaceholder')}
+                style={{ fontFamily: 'monospace' }}
               />
             </Form.Item>
             
             <Form.Item
               label={t('builderApiKey.secret')}
               name="builderSecret"
-              help={systemConfig?.builderSecretConfigured ? t('builderApiKey.secretHelp') : t('builderApiKey.secretPlaceholder')}
             >
-              <Input 
-                placeholder={systemConfig?.builderSecretConfigured ? t('builderApiKey.secretHelp') : t('builderApiKey.secretPlaceholder')}
+              <Input.Password 
+                placeholder={t('builderApiKey.secretPlaceholder')}
+                style={{ fontFamily: 'monospace' }}
+                iconRender={(visible) => (visible ? <span>👁️</span> : <span>👁️‍🗨️</span>)}
               />
             </Form.Item>
             
             <Form.Item
               label={t('builderApiKey.passphrase')}
               name="builderPassphrase"
-              help={systemConfig?.builderPassphraseConfigured ? t('builderApiKey.passphraseHelp') : t('builderApiKey.passphrasePlaceholder')}
             >
-              <Input 
-                placeholder={systemConfig?.builderPassphraseConfigured ? t('builderApiKey.passphraseHelp') : t('builderApiKey.passphrasePlaceholder')}
+              <Input.Password 
+                placeholder={t('builderApiKey.passphrasePlaceholder')}
+                style={{ fontFamily: 'monospace' }}
+                iconRender={(visible) => (visible ? <span>👁️</span> : <span>👁️‍🗨️</span>)}
               />
             </Form.Item>
             

frontend/src/types/index.ts

@@ -770,6 +770,9 @@ export interface SystemConfig {
   builderApiKeyConfigured: boolean
   builderSecretConfigured: boolean
   builderPassphraseConfigured: boolean
+  builderApiKeyDisplay?: string  // Builder API Key 显示值（部分显示）
+  builderSecretDisplay?: string  // Builder Secret 显示值（部分显示）
+  builderPassphraseDisplay?: string  // Builder Passphrase 显示值（部分显示）
   autoRedeemEnabled: boolean  // 自动赎回（系统级别配置，默认开启）
 }