perf(MarketDataView): 优化数据映射性能和请求管理

- useMarketData: 使用 Map 替代 findIndex，O(n*m) → O(n+m) 性能优化
- useMarketData: 修复 React StrictMode 下请求被意外取消的问题
- config.ts: 添加 CompanyOverview 和 DynamicTracking 的骨架屏 fallback

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

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

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

@@ -4,6 +4,8 @@
 import React, { useState, useEffect, ReactNode, useMemo, useCallback, memo } from 'react';
 import {
   Box,
+  Card,
+  CardBody,
   Container,
   VStack,
   useDisclosure,
@@ -87,6 +89,14 @@ const MarketDataView: React.FC<MarketDataViewProps> = ({ stockCode: propStockCod
     }
   }, [propStockCode, stockCode]);
 
+  // 首次渲染时加载默认 Tab（融资融券）的数据
+  useEffect(() => {
+    // 默认 Tab 是融资融券（index 0）
+    if (activeTab === 0) {
+      loadDataByType('funding');
+    }
+  }, [loadDataByType, activeTab]);
+
   // 处理图表点击事件
   const handleChartClick = useCallback(
     (params: { seriesName?: string; data?: [number, number] }) => {
@@ -146,15 +156,19 @@ const MarketDataView: React.FC<MarketDataViewProps> = ({ stockCode: propStockCod
           />
 
           {/* 主要内容区域 - Tab */}
-          <SubTabContainer
-            tabs={tabConfigs}
-            componentProps={componentProps}
-            themePreset="blackGold"
-            index={activeTab}
-            onTabChange={handleTabChange}
-            isLazy
-            size="sm"
-          />
+          <Card bg="gray.900" shadow="md" border="1px solid" borderColor="rgba(212, 175, 55, 0.3)">
+            <CardBody p={0}>
+              <SubTabContainer
+                tabs={tabConfigs}
+                componentProps={componentProps}
+                themePreset="blackGold"
+                index={activeTab}
+                onTabChange={handleTabChange}
+                isLazy
+                size="sm"
+              />
+            </CardBody>
+          </Card>
         </VStack>
       </Container>