移除跟单最大仓位数量(maxPositionCount)配置

- 数据库：创建迁移文件 V26 删除 max_position_count 字段
- 后端：移除实体类、DTO、服务中的 maxPositionCount 相关代码
- 后端：移除 FilterResult 中的 FAILED_MAX_POSITION_COUNT 状态
- 后端：移除 CopyTradingFilterService 中的最大仓位数量检查逻辑
- 前端：移除类型定义、表单字段和国际化翻译
- 前端：移除过滤订单列表中的 MAX_POSITION_COUNT 类型
- 前端：修复编译错误（Spin 导入、Table fixed 类型、size 类型）

frontend/src/locales/en/common.json

@@ -718,9 +718,6 @@
     "maxPositionValue": "Max Position Value (USDC)",
     "maxPositionValueTooltip": "Limit the maximum position value for a single market. If the current position value + copy order amount exceeds this limit, the order will not be placed. Leave empty to disable",
     "maxPositionValuePlaceholder": "For example: 100 (optional, leave empty to disable)",
-    "maxPositionCount": "Max Position Count",
-    "maxPositionCountTooltip": "Limit the maximum position count for a single market. If the current position count reaches or exceeds this limit, the order will not be placed. Leave empty to disable",
-    "maxPositionCountPlaceholder": "For example: 10 (optional, leave empty to disable)",
     "supportSell": "Support Sell",
     "supportSellTooltip": "Whether to copy Leader's sell orders. Enabled: copy both Leader's buy and sell orders; Disabled: only copy Leader's buy orders, ignore sell orders.",
     "pushFilteredOrders": "Push Filtered Orders",
@@ -792,9 +789,6 @@
     "maxPositionValue": "Max Position Value (USDC)",
     "maxPositionValueTooltip": "Limit the maximum position value for a single market. If the current position value + copy order amount exceeds this limit, the order will not be placed. Leave empty to disable",
     "maxPositionValuePlaceholder": "For example: 100 (optional, leave empty to disable)",
-    "maxPositionCount": "Max Position Count",
-    "maxPositionCountTooltip": "Limit the maximum position count for a single market. If the current position count reaches or exceeds this limit, the order will not be placed. Leave empty to disable",
-    "maxPositionCountPlaceholder": "For example: 10 (optional, leave empty to disable)",
     "keywordFilter": "Keyword Filter",
     "keywordFilterMode": "Filter Mode",
     "keywordFilterModeTooltip": "Select keyword filter mode. Whitelist: only copy markets containing keywords; Blacklist: do not copy markets containing keywords; Disabled: no keyword filtering. Keyword matching is case-insensitive.",
@@ -905,9 +899,6 @@
     "maxPositionValue": "Max Position Value (USDC)",
     "maxPositionValueTooltip": "Limit the maximum position value for a single market. If the current position value + copy order amount exceeds this limit, the order will not be placed. Leave empty to disable",
     "maxPositionValuePlaceholder": "For example: 100 (optional, leave empty to disable)",
-    "maxPositionCount": "Max Position Count",
-    "maxPositionCountTooltip": "Limit the maximum position count for a single market. If the current position count reaches or exceeds this limit, the order will not be placed. Leave empty to disable",
-    "maxPositionCountPlaceholder": "For example: 10 (optional, leave empty to disable)",
     "keywordFilter": "Keyword Filter",
     "keywordFilterMode": "Filter Mode",
     "keywordFilterModeTooltip": "Select keyword filter mode. Whitelist: only copy markets containing keywords; Blacklist: do not copy markets containing keywords; Disabled: no keyword filtering. Keyword matching is case-insensitive.",
@@ -972,7 +963,6 @@
       "orderbookEmpty": "Orderbook Empty",
       "priceRange": "Price Range Mismatch",
       "maxPositionValue": "Exceeds Max Position Value",
-      "maxPositionCount": "Exceeds Max Position Count",
       "marketEndDate": "Market End Date Exceeds Limit",
       "unknown": "Unknown Reason"
     },

frontend/src/locales/zh-CN/common.json

@@ -718,9 +718,6 @@
     "maxPositionValue": "最大仓位金额 (USDC)",
     "maxPositionValueTooltip": "限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制",
     "maxPositionValuePlaceholder": "例如：100（可选，不填写表示不启用）",
-    "maxPositionCount": "最大仓位数量",
-    "maxPositionCountTooltip": "限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制",
-    "maxPositionCountPlaceholder": "例如：10（可选，不填写表示不启用）",
     "supportSell": "跟单卖出",
     "supportSellTooltip": "是否跟单 Leader 的卖出订单。开启：跟单 Leader 的买入和卖出订单；关闭：只跟单 Leader 的买入订单，忽略卖出订单。",
     "pushFilteredOrders": "推送已过滤订单",
@@ -806,9 +803,6 @@
     "maxPositionValue": "最大仓位金额 (USDC)",
     "maxPositionValueTooltip": "限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制",
     "maxPositionValuePlaceholder": "例如：100（可选，不填写表示不启用）",
-    "maxPositionCount": "最大仓位数量",
-    "maxPositionCountTooltip": "限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制",
-    "maxPositionCountPlaceholder": "例如：10（可选，不填写表示不启用）",
     "keywordFilter": "关键字过滤",
     "keywordFilterMode": "过滤模式",
     "keywordFilterModeTooltip": "选择关键字过滤模式。白名单：只跟单包含关键字的市场；黑名单：不跟单包含关键字的市场；不启用：不进行关键字过滤。关键字匹配不区分大小写。",
@@ -919,9 +913,6 @@
     "maxPositionValue": "最大仓位金额 (USDC)",
     "maxPositionValueTooltip": "限制单个市场的最大仓位金额。如果该市场的当前仓位金额 + 跟单金额超过此限制，则不会下单。不填写则不启用此限制",
     "maxPositionValuePlaceholder": "例如：100（可选，不填写表示不启用）",
-    "maxPositionCount": "最大仓位数量",
-    "maxPositionCountTooltip": "限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制",
-    "maxPositionCountPlaceholder": "例如：10（可选，不填写表示不启用）",
     "keywordFilter": "关键字过滤",
     "keywordFilterMode": "过滤模式",
     "keywordFilterModeTooltip": "选择关键字过滤模式。白名单：只跟单包含关键字的市场；黑名单：不跟单包含关键字的市场；不启用：不进行关键字过滤。关键字匹配不区分大小写。",
@@ -972,7 +963,6 @@
       "orderbookEmpty": "订单簿为空",
       "priceRange": "价格区间不符",
       "maxPositionValue": "超过最大仓位金额",
-      "maxPositionCount": "超过最大仓位数量",
       "marketEndDate": "市场截止时间超出限制",
       "unknown": "未知原因"
     },

frontend/src/locales/zh-TW/common.json

@@ -718,9 +718,6 @@
     "maxPositionValue": "最大倉位金額 (USDC)",
     "maxPositionValueTooltip": "限制單個市場的最大倉位金額。如果該市場的當前倉位金額 + 跟單金額超過此限制，則不會下單。不填寫則不啟用此限制",
     "maxPositionValuePlaceholder": "例如：100（可選，不填寫表示不啟用）",
-    "maxPositionCount": "最大倉位數量",
-    "maxPositionCountTooltip": "限制單個市場的最大倉位數量。如果該市場的當前倉位數量達到或超過此限制，則不會下單。不填寫則不啟用此限制",
-    "maxPositionCountPlaceholder": "例如：10（可選，不填寫表示不啟用）",
     "supportSell": "跟單賣出",
     "supportSellTooltip": "是否跟單 Leader 的賣出訂單。開啟：跟單 Leader 的買入和賣出訂單；關閉：只跟單 Leader 的買入訂單，忽略賣出訂單。",
     "pushFilteredOrders": "推送已過濾訂單",
@@ -792,9 +789,6 @@
     "maxPositionValue": "最大倉位金額 (USDC)",
     "maxPositionValueTooltip": "限制單個市場的最大倉位金額。如果該市場的當前倉位金額 + 跟單金額超過此限制，則不會下單。不填寫則不啟用此限制",
     "maxPositionValuePlaceholder": "例如：100（可選，不填寫表示不啟用）",
-    "maxPositionCount": "最大倉位數量",
-    "maxPositionCountTooltip": "限制單個市場的最大倉位數量。如果該市場的當前倉位數量達到或超過此限制，則不會下單。不填寫則不啟用此限制",
-    "maxPositionCountPlaceholder": "例如：10（可選，不填寫表示不啟用）",
     "keywordFilter": "關鍵字過濾",
     "keywordFilterMode": "過濾模式",
     "keywordFilterModeTooltip": "選擇關鍵字過濾模式。白名單：只跟單包含關鍵字的市場；黑名單：不跟單包含關鍵字的市場；不啟用：不進行關鍵字過濾。關鍵字匹配不區分大小寫。",
@@ -905,9 +899,6 @@
     "maxPositionValue": "最大倉位金額 (USDC)",
     "maxPositionValueTooltip": "限制單個市場的最大倉位金額。如果該市場的當前倉位金額 + 跟單金額超過此限制，則不會下單。不填寫則不啟用此限制",
     "maxPositionValuePlaceholder": "例如：100（可選，不填寫表示不啟用）",
-    "maxPositionCount": "最大倉位數量",
-    "maxPositionCountTooltip": "限制單個市場的最大倉位數量。如果該市場的當前倉位數量達到或超過此限制，則不會下單。不填寫則不啟用此限制",
-    "maxPositionCountPlaceholder": "例如：10（可選，不填寫表示不啟用）",
     "keywordFilter": "關鍵字過濾",
     "keywordFilterMode": "過濾模式",
     "keywordFilterModeTooltip": "選擇關鍵字過濾模式。白名單：只跟單包含關鍵字的市場；黑名單：不跟單包含關鍵字的市場；不啟用：不進行關鍵字過濾。關鍵字匹配不區分大小寫。",
@@ -972,7 +963,6 @@
       "orderbookEmpty": "訂單簿為空",
       "priceRange": "價格區間不符",
       "maxPositionValue": "超過最大倉位金額",
-      "maxPositionCount": "超過最大倉位數量",
       "marketEndDate": "市場截止時間超出限制",
       "unknown": "未知原因"
     },

frontend/src/pages/CopyTradingOrders/AddModal.tsx

@@ -1,5 +1,5 @@
 import React, { useEffect, useState, useRef } from 'react'
-import { Modal, Form, Button, Switch, message, Space, Radio, InputNumber, Table, Select, Divider, Input, Tag, InputRef, Card, Row, Col, Statistic } from 'antd'
+import { Modal, Form, Button, Switch, message, Space, Radio, InputNumber, Table, Select, Divider, Input, Tag, InputRef, Card, Row, Col, Statistic, Spin } from 'antd'
 import { SaveOutlined, FileTextOutlined, PlusOutlined } from '@ant-design/icons'
 import { apiService } from '../../services/api'
 import { useAccountStore } from '../../store/accountStore'
@@ -122,7 +122,6 @@ const AddModal: React.FC<AddModalProps> = ({
       minPrice: template.minPrice ? parseFloat(template.minPrice) : undefined,
       maxPrice: template.maxPrice ? parseFloat(template.maxPrice) : undefined,
       maxPositionValue: (template as any).maxPositionValue ? parseFloat((template as any).maxPositionValue) : undefined,
-      maxPositionCount: (template as any).maxPositionCount,
       pushFilteredOrders: template.pushFilteredOrders ?? false
     })
     setCopyMode(template.copyMode)
@@ -277,7 +276,6 @@ const AddModal: React.FC<AddModalProps> = ({
         minPrice: values.minPrice?.toString(),
         maxPrice: values.maxPrice?.toString(),
         maxPositionValue: values.maxPositionValue?.toString(),
-        maxPositionCount: values.maxPositionCount,
         keywordFilterMode: values.keywordFilterMode || 'DISABLED',
         keywords: (values.keywordFilterMode === 'WHITELIST' || values.keywordFilterMode === 'BLACKLIST') 
           ? keywords 
@@ -800,19 +798,6 @@ const AddModal: React.FC<AddModalProps> = ({
             />
           </Form.Item>
           
-          <Form.Item
-            label={t('copyTradingAdd.maxPositionCount') || '最大仓位数量'}
-            name="maxPositionCount"
-            tooltip={t('copyTradingAdd.maxPositionCountTooltip') || '限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制'}
-          >
-            <InputNumber
-              min={1}
-              step={1}
-              style={{ width: '100%' }}
-              placeholder={t('copyTradingAdd.maxPositionCountPlaceholder') || '例如：10（可选，不填写表示不启用）'}
-            />
-          </Form.Item>
-          
           <Divider>{t('copyTradingAdd.keywordFilter') || '关键字过滤'}</Divider>
           
           <Form.Item

frontend/src/pages/CopyTradingOrders/EditModal.tsx

@@ -91,7 +91,6 @@ const EditModal: React.FC<EditModalProps> = ({
             minPrice: found.minPrice ? parseFloat(found.minPrice) : undefined,
             maxPrice: found.maxPrice ? parseFloat(found.maxPrice) : undefined,
             maxPositionValue: found.maxPositionValue ? parseFloat(found.maxPositionValue) : undefined,
-            maxPositionCount: found.maxPositionCount,
             keywordFilterMode: found.keywordFilterMode || 'DISABLED',
             configName: found.configName || '',
             pushFailedOrders: found.pushFailedOrders ?? false,
@@ -237,8 +236,6 @@ const EditModal: React.FC<EditModalProps> = ({
         minPrice: values.minPrice != null ? values.minPrice.toString() : '',
         maxPrice: values.maxPrice != null ? values.maxPrice.toString() : '',
         maxPositionValue: values.maxPositionValue != null ? values.maxPositionValue.toString() : '',
-        // 对于 maxPositionCount，如果值为 null/undefined，传 -1 表示要清空（后端会识别并设置为 null）
-        maxPositionCount: values.maxPositionCount != null ? values.maxPositionCount : -1,
         keywordFilterMode: values.keywordFilterMode || 'DISABLED',
         keywords: (values.keywordFilterMode === 'WHITELIST' || values.keywordFilterMode === 'BLACKLIST') 
           ? keywords 
@@ -722,19 +719,6 @@ const EditModal: React.FC<EditModalProps> = ({
             />
           </Form.Item>
           
-          <Form.Item
-            label={t('copyTradingEdit.maxPositionCount') || '最大仓位数量'}
-            name="maxPositionCount"
-            tooltip={t('copyTradingEdit.maxPositionCountTooltip') || '限制单个市场的最大仓位数量。如果该市场的当前仓位数量达到或超过此限制，则不会下单。不填写则不启用此限制'}
-          >
-            <InputNumber
-              min={1}
-              step={1}
-              style={{ width: '100%' }}
-              placeholder={t('copyTradingEdit.maxPositionCountPlaceholder') || '例如：10（可选，不填写表示不启用）'}
-            />
-          </Form.Item>
-          
           {/* 关键字过滤 */}
           <Divider>{t('copyTradingEdit.keywordFilter') || t('copyTradingAdd.keywordFilter') || '关键字过滤'}</Divider>
           

frontend/src/pages/CopyTradingOrders/FilteredOrdersModal.tsx

@@ -69,7 +69,6 @@ const FilteredOrdersModal: React.FC<FilteredOrdersModalProps> = ({
       ORDERBOOK_EMPTY: { color: 'default', text: t('filteredOrdersList.filterTypes.orderbookEmpty') || '订单簿为空' },
       PRICE_RANGE: { color: 'purple', text: t('filteredOrdersList.filterTypes.priceRange') || '价格区间不符' },
       MAX_POSITION_VALUE: { color: 'volcano', text: t('filteredOrdersList.filterTypes.maxPositionValue') || '超过最大仓位金额' },
-      MAX_POSITION_COUNT: { color: 'volcano', text: t('filteredOrdersList.filterTypes.maxPositionCount') || '超过最大仓位数量' },
       MARKET_END_DATE: { color: 'cyan', text: t('filteredOrdersList.filterTypes.marketEndDate') || '市场截止时间超出限制' },
       KEYWORD_FILTER: { color: 'geekblue', text: t('filteredOrdersList.filterTypes.keywordFilter') || '关键字过滤' }
     }

frontend/src/pages/FilteredOrdersList.tsx

@@ -66,7 +66,6 @@ const FilteredOrdersList: React.FC = () => {
       'ORDERBOOK_EMPTY': { color: 'default', label: t('filteredOrdersList.filterTypes.orderbookEmpty') || '订单簿为空' },
       'PRICE_RANGE': { color: 'purple', label: t('filteredOrdersList.filterTypes.priceRange') || '价格区间不符' },
       'MAX_POSITION_VALUE': { color: 'volcano', label: t('filteredOrdersList.filterTypes.maxPositionValue') || '超过最大仓位金额' },
-      'MAX_POSITION_COUNT': { color: 'volcano', label: t('filteredOrdersList.filterTypes.maxPositionCount') || '超过最大仓位数量' },
       'MARKET_END_DATE': { color: 'cyan', label: t('filteredOrdersList.filterTypes.marketEndDate') || '市场截止时间超出限制' },
       'KEYWORD_FILTER': { color: 'geekblue', label: t('filteredOrdersList.filterTypes.keywordFilter') || '关键字过滤' },
       'UNKNOWN': { color: 'default', label: t('filteredOrdersList.filterTypes.unknown') || '未知原因' }

frontend/src/pages/LeaderList.tsx

@@ -266,7 +266,7 @@ const LeaderList: React.FC = () => {
       title: t('common.actions'),
       key: 'action',
       width: isMobile ? 180 : 250,
-      fixed: 'right',
+      fixed: 'right' as const,
       render: (_: any, record: Leader) => (
         <Space size="small" wrap>
           <Button type="link" size="small" icon={<EyeOutlined />} onClick={() => handleShowDetail(record)}>
@@ -530,7 +530,7 @@ const LeaderList: React.FC = () => {
                     rowKey={(record, index) => `${record.title}-${record.side}-${index}`}
                     pagination={{ pageSize: 10, showSizeChanger: !isMobile }}
                     scroll={{ x: isMobile ? 800 : 'auto' }}
-                    size={isMobile ? 'small' : 'default'}
+                    size={isMobile ? 'small' : 'middle'}
                   />
                 ) : (
                   <Empty description={t('leaderDetail.noPositions')} />

frontend/src/types/index.ts

@@ -257,7 +257,6 @@ export interface CopyTrading {
   maxPrice?: string  // 最高价格（可选），NULL表示不限制最高价
   // 最大仓位配置
   maxPositionValue?: string  // 最大仓位金额（USDC），NULL表示不启用
-  maxPositionCount?: number  // 最大仓位数量，NULL表示不启用
   // 关键字过滤配置
   keywordFilterMode?: 'DISABLED' | 'WHITELIST' | 'BLACKLIST'  // 关键字过滤模式
   keywords?: string[]  // 关键字列表，当keywordFilterMode为DISABLED时为null
@@ -307,7 +306,6 @@ export interface CopyTradingCreateRequest {
   maxPrice?: string  // 最高价格（可选），NULL表示不限制最高价
   // 最大仓位配置
   maxPositionValue?: string  // 最大仓位金额（USDC），NULL表示不启用
-  maxPositionCount?: number  // 最大仓位数量，NULL表示不启用
   // 关键字过滤配置
   keywordFilterMode?: 'DISABLED' | 'WHITELIST' | 'BLACKLIST'  // 关键字过滤模式
   keywords?: string[]  // 关键字列表，当keywordFilterMode为DISABLED时为null
@@ -346,7 +344,6 @@ export interface CopyTradingUpdateRequest {
   maxPrice?: string  // 最高价格（可选），NULL表示不限制最高价
   // 最大仓位配置
   maxPositionValue?: string  // 最大仓位金额（USDC），NULL表示不启用
-  maxPositionCount?: number  // 最大仓位数量，NULL表示不启用
   // 关键字过滤配置
   keywordFilterMode?: 'DISABLED' | 'WHITELIST' | 'BLACKLIST'  // 关键字过滤模式
   keywords?: string[]  // 关键字列表，当keywordFilterMode为DISABLED时为null