perf: 优化各 Tab 数据加载为按需请求

MarketDataView (股票行情):
- 初始只加载 summary + tradeData（2个接口）
- funding/bigDeal/unusual/pledge 数据在切换 Tab 时按需加载
- 新增 loadDataByType 方法支持懒加载

FinancialPanorama (财务全景):
- 初始只加载 stockInfo + metrics + comparison + mainBusiness（4个接口）
- 从9个接口优化到4个接口

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

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

src/views/Company/components/MarketDataView/index.tsx

@@ -68,8 +68,25 @@ const MarketDataView: React.FC<MarketDataViewProps> = ({ stockCode: propStockCod
     analysisMap,
     refetch,
     loadMinuteData,
+    loadDataByType,
   } = useMarketData(stockCode, selectedPeriod);
 
+  // Tab 切换时按需加载数据
+  const handleTabChange = useCallback((index: number) => {
+    setActiveTab(index);
+    // 根据 tab index 加载对应数据
+    const tabDataMap: Record<number, 'funding' | 'bigDeal' | 'unusual' | 'pledge'> = {
+      0: 'funding',
+      1: 'bigDeal',
+      2: 'unusual',
+      3: 'pledge',
+    };
+    const dataType = tabDataMap[index];
+    if (dataType) {
+      loadDataByType(dataType);
+    }
+  }, [loadDataByType]);
+
   // 监听 props 中的 stockCode 变化
   useEffect(() => {
     if (propStockCode && propStockCode !== stockCode) {
@@ -173,7 +190,7 @@ const MarketDataView: React.FC<MarketDataViewProps> = ({ stockCode: propStockCod
               componentProps={componentProps}
               themePreset="blackGold"
               index={activeTab}
-              onTabChange={(index) => setActiveTab(index)}
+              onTabChange={handleTabChange}
               isLazy
             />
           )}