feat(StockQuoteCard): 新增内部数据获取 hooks

- useStockQuoteData: 合并行情数据和基本信息获取
- useStockCompare: 股票对比逻辑封装
- 为数据下沉优化做准备

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

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

src/views/Company/components/StockQuoteCard/hooks/useStockCompare.ts

@@ -0,0 +1,91 @@
+/**
+ * useStockCompare - 股票对比逻辑 Hook
+ *
+ * 管理股票对比所需的数据获取和状态
+ */
+
+import { useState, useEffect, useCallback } from 'react';
+import { useToast } from '@chakra-ui/react';
+import { financialService } from '@services/financialService';
+import { logger } from '@utils/logger';
+import type { StockInfo } from '../../FinancialPanorama/types';
+
+interface UseStockCompareResult {
+  currentStockInfo: StockInfo | null;
+  compareStockInfo: StockInfo | null;
+  isCompareLoading: boolean;
+  handleCompare: (compareCode: string) => Promise<void>;
+  clearCompare: () => void;
+}
+
+/**
+ * 股票对比 Hook
+ *
+ * @param stockCode - 当前股票代码
+ */
+export const useStockCompare = (stockCode?: string): UseStockCompareResult => {
+  const toast = useToast();
+  const [currentStockInfo, setCurrentStockInfo] = useState<StockInfo | null>(null);
+  const [compareStockInfo, setCompareStockInfo] = useState<StockInfo | null>(null);
+  const [isCompareLoading, setIsCompareLoading] = useState(false);
+
+  // 加载当前股票财务信息（用于对比）
+  useEffect(() => {
+    const loadCurrentStockInfo = async () => {
+      if (!stockCode) {
+        setCurrentStockInfo(null);
+        return;
+      }
+
+      try {
+        const res = await financialService.getStockInfo(stockCode);
+        setCurrentStockInfo(res.data);
+      } catch (error) {
+        logger.error('useStockCompare', 'loadCurrentStockInfo', error, { stockCode });
+      }
+    };
+
+    loadCurrentStockInfo();
+    // 股票代码变化时清除对比数据
+    setCompareStockInfo(null);
+  }, [stockCode]);
+
+  // 处理股票对比
+  const handleCompare = useCallback(async (compareCode: string) => {
+    if (!compareCode) return;
+
+    logger.debug('useStockCompare', '开始加载对比数据', { stockCode, compareCode });
+    setIsCompareLoading(true);
+
+    try {
+      const res = await financialService.getStockInfo(compareCode);
+      setCompareStockInfo(res.data);
+      logger.info('useStockCompare', '对比数据加载成功', { stockCode, compareCode });
+    } catch (error) {
+      logger.error('useStockCompare', 'handleCompare', error, { stockCode, compareCode });
+      toast({
+        title: '加载对比数据失败',
+        description: '请检查股票代码是否正确',
+        status: 'error',
+        duration: 3000,
+      });
+    } finally {
+      setIsCompareLoading(false);
+    }
+  }, [stockCode, toast]);
+
+  // 清除对比数据
+  const clearCompare = useCallback(() => {
+    setCompareStockInfo(null);
+  }, []);
+
+  return {
+    currentStockInfo,
+    compareStockInfo,
+    isCompareLoading,
+    handleCompare,
+    clearCompare,
+  };
+};
+
+export default useStockCompare;