fix: Complete i18n implementation for English language display

This commit addresses the issue where switching to English still showed Chinese text in many UI elements.

Changes made:
- Added 40+ missing translation keys to translations.ts for both English and Chinese
- Updated App.tsx to use t() function for all hardcoded text (logout button, loading message)
- Updated AITradersPage.tsx extensively:
  - Replaced all alert/confirm messages with translation keys
  - Updated status labels (inUse, enabled, configured)
  - Updated all modal components (SignalSource, ModelConfig, ExchangeConfig)
  - Added language prop to all modal components
  - Replaced all Chinese UI text with translation function calls

The implementation now properly supports language switching between English and Chinese throughout the entire application.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

web/src/i18n/translations.ts

@@ -8,8 +8,13 @@ export const translations = {
     aiTraders: 'AI Traders',
     details: 'Details',
     tradingPanel: 'Trading Panel',
+    competition: 'Competition',
     running: 'RUNNING',
     stopped: 'STOPPED',
+    adminMode: 'Admin Mode',
+    logout: 'Logout',
+    switchTrader: 'Switch Trader:',
+    view: 'View',
 
     // Footer
     footerTitle: 'NOFX - AI Trading System',
@@ -75,11 +80,14 @@ export const translations = {
     aiCompetition: 'AI Competition',
     traders: 'traders',
     liveBattle: 'Live Battle',
+    realTimeBattle: 'Real-time Battle',
     leader: 'Leader',
     leaderboard: 'Leaderboard',
     live: 'LIVE',
+    realTime: 'LIVE',
     performanceComparison: 'Performance Comparison',
     realTimePnL: 'Real-time PnL %',
+    realTimePnLPercent: 'Real-time PnL %',
     headToHead: 'Head-to-Head Battle',
     leadingBy: 'Leading by {gap}%',
     behindBy: 'Behind by {gap}%',
@@ -190,6 +198,59 @@ export const translations = {
     loading: 'Loading...',
     loadingError: '⚠️ Failed to load AI learning data',
     noCompleteData: 'No complete trading data (needs to complete open → close cycle)',
+
+    // AI Traders Page - Additional
+    inUse: 'In Use',
+    noModelsConfigured: 'No configured AI models',
+    noExchangesConfigured: 'No configured exchanges',
+    signalSource: 'Signal Source',
+    signalSourceConfig: 'Signal Source Configuration',
+    coinPoolDescription: 'API endpoint for coin pool data, leave blank to disable this signal source',
+    oiTopDescription: 'API endpoint for open interest rankings, leave blank to disable this signal source',
+    information: 'Information',
+    signalSourceInfo1: '• Signal source configuration is per-user, each user can set their own URLs',
+    signalSourceInfo2: '• When creating traders, you can choose whether to use these signal sources',
+    signalSourceInfo3: '• Configured URLs will be used to fetch market data and trading signals',
+    editAIModel: 'Edit AI Model',
+    addAIModel: 'Add AI Model',
+    confirmDeleteModel: 'Are you sure you want to delete this AI model configuration?',
+    selectModel: 'Select AI Model',
+    pleaseSelectModel: 'Please select a model',
+    customBaseURL: 'Base URL (Optional)',
+    customBaseURLPlaceholder: 'Custom API base URL, e.g.: https://api.openai.com/v1',
+    leaveBlankForDefault: 'Leave blank to use default API address',
+    modelConfigInfo1: '• API Key will be encrypted and stored, please ensure it is valid',
+    modelConfigInfo2: '• Base URL is used for custom API server address',
+    modelConfigInfo3: '• After deleting configuration, traders using this model will not work properly',
+    saveConfig: 'Save Configuration',
+    editExchange: 'Edit Exchange',
+    addExchange: 'Add Exchange',
+    confirmDeleteExchange: 'Are you sure you want to delete this exchange configuration?',
+    selectExchange: 'Select Exchange',
+    pleaseSelectExchange: 'Please select an exchange',
+    enterSecretKey: 'Enter secret key',
+    enterPassphrase: 'Enter Passphrase (Required for OKX)',
+    testnetDescription: 'Enable to connect to exchange test environment for simulated trading',
+    securityWarning: 'Security Warning',
+    exchangeConfigWarning1: '• API keys will be encrypted, recommend using read-only or futures trading permissions',
+    exchangeConfigWarning2: '• Do not grant withdrawal permissions to ensure fund security',
+    exchangeConfigWarning3: '• After deleting configuration, related traders will not be able to trade',
+    edit: 'Edit',
+
+    // Error Messages
+    createTraderFailed: 'Failed to create trader',
+    getTraderConfigFailed: 'Failed to get trader configuration',
+    modelConfigNotExist: 'Model configuration does not exist or is not enabled',
+    exchangeConfigNotExist: 'Exchange configuration does not exist or is not enabled',
+    updateTraderFailed: 'Failed to update trader',
+    deleteTraderFailed: 'Failed to delete trader',
+    operationFailed: 'Operation failed',
+    deleteConfigFailed: 'Failed to delete configuration',
+    modelNotExist: 'Model does not exist',
+    saveConfigFailed: 'Failed to save configuration',
+    exchangeNotExist: 'Exchange does not exist',
+    deleteExchangeConfigFailed: 'Failed to delete exchange configuration',
+    saveSignalSourceFailed: 'Failed to save signal source configuration',
     
     // Login & Register
     login: 'Sign In',
@@ -250,8 +311,13 @@ export const translations = {
     aiTraders: 'AI交易员',
     details: '详情',
     tradingPanel: '交易面板',
+    competition: '竞赛',
     running: '运行中',
     stopped: '已停止',
+    adminMode: '管理员模式',
+    logout: '退出',
+    switchTrader: '切换交易员:',
+    view: '查看',
 
     // Footer
     footerTitle: 'NOFX - AI交易系统',
@@ -317,11 +383,14 @@ export const translations = {
     aiCompetition: 'AI竞赛',
     traders: '交易员',
     liveBattle: '实时对战',
+    realTimeBattle: '实时对战',
     leader: '领先者',
     leaderboard: '排行榜',
     live: '实时',
+    realTime: '实时',
     performanceComparison: '表现对比',
     realTimePnL: '实时收益率',
+    realTimePnLPercent: '实时收益率',
     headToHead: '正面对决',
     leadingBy: '领先 {gap}%',
     behindBy: '落后 {gap}%',
@@ -432,6 +501,59 @@ export const translations = {
     loading: '加载中...',
     loadingError: '⚠️ 加载AI学习数据失败',
     noCompleteData: '暂无完整交易数据（需要完成开仓→平仓的完整周期）',
+
+    // AI Traders Page - Additional
+    inUse: '正在使用',
+    noModelsConfigured: '暂无已配置的AI模型',
+    noExchangesConfigured: '暂无已配置的交易所',
+    signalSource: '信号源',
+    signalSourceConfig: '信号源配置',
+    coinPoolDescription: '用于获取币种池数据的API地址，留空则不使用此信号源',
+    oiTopDescription: '用于获取持仓量排行数据的API地址，留空则不使用此信号源',
+    information: '说明',
+    signalSourceInfo1: '• 信号源配置为用户级别，每个用户可以设置自己的信号源URL',
+    signalSourceInfo2: '• 在创建交易员时可以选择是否使用这些信号源',
+    signalSourceInfo3: '• 配置的URL将用于获取市场数据和交易信号',
+    editAIModel: '编辑AI模型',
+    addAIModel: '添加AI模型',
+    confirmDeleteModel: '确定要删除此AI模型配置吗？',
+    selectModel: '选择AI模型',
+    pleaseSelectModel: '请选择模型',
+    customBaseURL: 'Base URL (可选)',
+    customBaseURLPlaceholder: '自定义API基础URL，如: https://api.openai.com/v1',
+    leaveBlankForDefault: '留空则使用默认API地址',
+    modelConfigInfo1: '• API Key将被加密存储，请确保密钥有效',
+    modelConfigInfo2: '• Base URL用于自定义API服务器地址',
+    modelConfigInfo3: '• 删除配置后，使用此模型的交易员将无法正常工作',
+    saveConfig: '保存配置',
+    editExchange: '编辑交易所',
+    addExchange: '添加交易所',
+    confirmDeleteExchange: '确定要删除此交易所配置吗？',
+    selectExchange: '选择交易所',
+    pleaseSelectExchange: '请选择交易所',
+    enterSecretKey: '输入密钥',
+    enterPassphrase: '输入Passphrase (OKX必填)',
+    testnetDescription: '启用后将连接到交易所测试环境，用于模拟交易',
+    securityWarning: '安全提示',
+    exchangeConfigWarning1: '• API密钥将被加密存储，建议使用只读或期货交易权限',
+    exchangeConfigWarning2: '• 不要授予提现权限，确保资金安全',
+    exchangeConfigWarning3: '• 删除配置后，相关交易员将无法正常交易',
+    edit: '编辑',
+
+    // Error Messages
+    createTraderFailed: '创建交易员失败',
+    getTraderConfigFailed: '获取交易员配置失败',
+    modelConfigNotExist: 'AI模型配置不存在或未启用',
+    exchangeConfigNotExist: '交易所配置不存在或未启用',
+    updateTraderFailed: '更新交易员失败',
+    deleteTraderFailed: '删除交易员失败',
+    operationFailed: '操作失败',
+    deleteConfigFailed: '删除配置失败',
+    modelNotExist: '模型不存在',
+    saveConfigFailed: '保存配置失败',
+    exchangeNotExist: '交易所不存在',
+    deleteExchangeConfigFailed: '删除交易所配置失败',
+    saveSignalSourceFailed: '保存信号源配置失败',
     
     // Login & Register
     login: '登录',