bugfix dashboard empty state

web/src/App.tsx

@@ -101,11 +101,12 @@ function App() {
   // };
 
   // 获取trader列表（仅在用户登录时）
-  const { data: traders } = useSWR<TraderInfo[]>(
+  const { data: traders, error: tradersError } = useSWR<TraderInfo[]>(
     user && token ? 'traders' : null,
     api.getTraders,
     {
       refreshInterval: 10000,
+      shouldRetryOnError: false, // 避免在后端未运行时无限重试
     }
   )
 
@@ -371,8 +372,14 @@ function App() {
             lastUpdate={lastUpdate}
             language={language}
             traders={traders}
+            tradersError={tradersError}
             selectedTraderId={selectedTraderId}
             onTraderSelect={setSelectedTraderId}
+            onNavigateToTraders={() => {
+              window.history.pushState({}, '', '/traders')
+              setRoute('/traders')
+              setCurrentPage('traders')
+            }}
           />
         )}
       </main>
@@ -437,13 +444,17 @@ function TraderDetailsPage({
   lastUpdate,
   language,
   traders,
+  tradersError,
   selectedTraderId,
   onTraderSelect,
+  onNavigateToTraders,
 }: {
   selectedTrader?: TraderInfo
   traders?: TraderInfo[]
+  tradersError?: Error
   selectedTraderId?: string
   onTraderSelect: (traderId: string) => void
+  onNavigateToTraders: () => void
   status?: SystemStatus
   account?: AccountInfo
   positions?: Position[]
@@ -452,6 +463,119 @@ function TraderDetailsPage({
   lastUpdate: string
   language: Language
 }) {
+  // If API failed with error, show empty state (likely backend not running)
+  if (tradersError) {
+    return (
+      <div className="flex items-center justify-center min-h-[60vh]">
+        <div className="text-center max-w-md mx-auto px-6">
+          {/* Icon */}
+          <div
+            className="w-24 h-24 mx-auto mb-6 rounded-full flex items-center justify-center"
+            style={{
+              background: 'rgba(240, 185, 11, 0.1)',
+              border: '2px solid rgba(240, 185, 11, 0.3)',
+            }}
+          >
+            <svg
+              className="w-12 h-12"
+              style={{ color: '#F0B90B' }}
+              fill="none"
+              viewBox="0 0 24 24"
+              stroke="currentColor"
+            >
+              <path
+                strokeLinecap="round"
+                strokeLinejoin="round"
+                strokeWidth={2}
+                d="M9.75 17L9 20l-1 1h8l-1-1-.75-3M3 13h18M5 17h14a2 2 0 002-2V5a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"
+              />
+            </svg>
+          </div>
+
+          {/* Title */}
+          <h2 className="text-2xl font-bold mb-3" style={{ color: '#EAECEF' }}>
+            {t('dashboardEmptyTitle', language)}
+          </h2>
+
+          {/* Description */}
+          <p className="text-base mb-6" style={{ color: '#848E9C' }}>
+            {t('dashboardEmptyDescription', language)}
+          </p>
+
+          {/* CTA Button */}
+          <button
+            onClick={onNavigateToTraders}
+            className="px-6 py-3 rounded-lg font-semibold transition-all hover:scale-105 active:scale-95"
+            style={{
+              background: 'linear-gradient(135deg, #F0B90B 0%, #FCD535 100%)',
+              color: '#0B0E11',
+              boxShadow: '0 4px 12px rgba(240, 185, 11, 0.3)',
+            }}
+          >
+            {t('goToTradersPage', language)}
+          </button>
+        </div>
+      </div>
+    )
+  }
+
+  // If traders is loaded and empty, show empty state
+  if (traders && traders.length === 0) {
+    return (
+      <div className="flex items-center justify-center min-h-[60vh]">
+        <div className="text-center max-w-md mx-auto px-6">
+          {/* Icon */}
+          <div
+            className="w-24 h-24 mx-auto mb-6 rounded-full flex items-center justify-center"
+            style={{
+              background: 'rgba(240, 185, 11, 0.1)',
+              border: '2px solid rgba(240, 185, 11, 0.3)',
+            }}
+          >
+            <svg
+              className="w-12 h-12"
+              style={{ color: '#F0B90B' }}
+              fill="none"
+              viewBox="0 0 24 24"
+              stroke="currentColor"
+            >
+              <path
+                strokeLinecap="round"
+                strokeLinejoin="round"
+                strokeWidth={2}
+                d="M9.75 17L9 20l-1 1h8l-1-1-.75-3M3 13h18M5 17h14a2 2 0 002-2V5a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"
+              />
+            </svg>
+          </div>
+
+          {/* Title */}
+          <h2 className="text-2xl font-bold mb-3" style={{ color: '#EAECEF' }}>
+            {t('dashboardEmptyTitle', language)}
+          </h2>
+
+          {/* Description */}
+          <p className="text-base mb-6" style={{ color: '#848E9C' }}>
+            {t('dashboardEmptyDescription', language)}
+          </p>
+
+          {/* CTA Button */}
+          <button
+            onClick={onNavigateToTraders}
+            className="px-6 py-3 rounded-lg font-semibold transition-all hover:scale-105 active:scale-95"
+            style={{
+              background: 'linear-gradient(135deg, #F0B90B 0%, #FCD535 100%)',
+              color: '#0B0E11',
+              boxShadow: '0 4px 12px rgba(240, 185, 11, 0.3)',
+            }}
+          >
+            {t('goToTradersPage', language)}
+          </button>
+        </div>
+      </div>
+    )
+  }
+
+  // If traders is still loading or selectedTrader is not ready, show skeleton
   if (!selectedTrader) {
     return (
       <div className="space-y-6">

web/src/components/AITradersPage.tsx

@@ -24,6 +24,7 @@ import {
   AlertTriangle,
   BookOpen,
   HelpCircle,
+  Radio,
 } from 'lucide-react'
 
 // 获取友好的AI模型名称
@@ -691,7 +692,7 @@ export function AITradersPage({ onTraderSelect }: AITradersPageProps) {
           </div>
         </div>
 
-        <div className="flex gap-2 md:gap-3 w-full md:w-auto overflow-x-auto flex-wrap md:flex-nowrap">
+        <div className="flex gap-2 md:gap-3 w-full md:w-auto overflow-hidden flex-wrap md:flex-nowrap">
           <button
             onClick={handleAddModel}
             className="px-3 md:px-4 py-2 rounded text-xs md:text-sm font-semibold transition-all hover:scale-105 flex items-center gap-1 md:gap-2 whitespace-nowrap"
@@ -720,14 +721,15 @@ export function AITradersPage({ onTraderSelect }: AITradersPageProps) {
 
           <button
             onClick={() => setShowSignalSourceModal(true)}
-            className="px-3 md:px-4 py-2 rounded text-xs md:text-sm font-semibold transition-all hover:scale-105 whitespace-nowrap"
+            className="px-3 md:px-4 py-2 rounded text-xs md:text-sm font-semibold transition-all hover:scale-105 flex items-center gap-1 md:gap-2 whitespace-nowrap"
             style={{
               background: '#2B3139',
               color: '#EAECEF',
               border: '1px solid #474D57',
             }}
           >
-            📡 {t('signalSource', language)}
+            <Radio className="w-3 h-3 md:w-4 md:h-4" />
+            {t('signalSource', language)}
           </button>
 
           <button
@@ -782,7 +784,7 @@ export function AITradersPage({ onTraderSelect }: AITradersPageProps) {
                   <strong>{t('solutions', language)}</strong>
                 </p>
                 <ul className="list-disc list-inside space-y-1 ml-2 mt-1">
-                  <li>点击"📡 {t('signalSource', language)}"按钮配置API地址</li>
+                  <li>点击"{t('signalSource', language)}"按钮配置API地址</li>
                   <li>或在交易员配置中禁用"使用币种池"和"使用OI Top"</li>
                   <li>或在交易员配置中设置自定义币种列表</li>
                 </ul>
@@ -1281,7 +1283,7 @@ function SignalSourceModal({
         style={{ background: '#1E2329' }}
       >
         <h3 className="text-xl font-bold mb-4" style={{ color: '#EAECEF' }}>
-          📡 {t('signalSourceConfig', language)}
+          {t('signalSourceConfig', language)}
         </h3>
 
         <form onSubmit={handleSubmit} className="space-y-4">

web/src/i18n/translations.ts

@@ -146,6 +146,10 @@ export const translations = {
     currentTraders: 'Current Traders',
     noTraders: 'No AI Traders',
     createFirstTrader: 'Create your first AI trader to get started',
+    dashboardEmptyTitle: 'No Traders Configured',
+    dashboardEmptyDescription:
+      "You haven't created any AI traders yet. Create your first trader to start automated trading.",
+    goToTradersPage: 'Go to Traders Page',
     configureModelsFirst: 'Please configure AI models first',
     configureExchangesFirst: 'Please configure exchanges first',
     configureModelsAndExchangesFirst:
@@ -830,6 +834,10 @@ export const translations = {
     currentTraders: '当前交易员',
     noTraders: '暂无AI交易员',
     createFirstTrader: '创建您的第一个AI交易员开始使用',
+    dashboardEmptyTitle: '暂无交易员',
+    dashboardEmptyDescription:
+      '您还未创建任何AI交易员，创建您的第一个交易员以开始自动化交易。',
+    goToTradersPage: '前往交易员页面',
     configureModelsFirst: '请先配置AI模型',
     configureExchangesFirst: '请先配置交易所',
     configureModelsAndExchangesFirst: '请先配置AI模型和交易所',