perf(Company): 优化渲染性能和 API 请求

- StockQuoteCard: 添加 memo 包装减少重渲染
- Company/index: componentProps 使用 useMemo 缓存
- useCompanyEvents: 页面浏览事件只触发一次，避免重复追踪
- useCompanyData: 自选股状态改用单股票查询接口，减少数据传输
- CompanyHeader: inputCode 状态下移到 SearchActions，减少父组件重渲染
- CompanyHeader: 移除重复环境光效果，由全局 AmbientGlow 统一处理

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

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

src/views/Company/hooks/useCompanyEvents.js

@@ -1,7 +1,7 @@
 // src/views/Company/hooks/useCompanyEvents.js
 // 公司详情页面事件追踪 Hook
 
-import { useCallback, useEffect } from 'react';
+import { useCallback, useEffect, useRef } from 'react';
 import { usePostHogTrack } from '../../../hooks/usePostHogRedux';
 import { RETENTION_EVENTS } from '../../../lib/constants';
 import { logger } from '../../../utils/logger';
@@ -14,9 +14,13 @@ import { logger } from '../../../utils/logger';
  */
 export const useCompanyEvents = ({ stockCode } = {}) => {
   const { track } = usePostHogTrack();
+  const hasTrackedPageView = useRef(false);
 
-  // 🎯 页面浏览事件 - 页面加载时触发
+  // 🎯 页面浏览事件 - 仅页面首次加载时触发一次
   useEffect(() => {
+    if (hasTrackedPageView.current) return;
+    hasTrackedPageView.current = true;
+
     track(RETENTION_EVENTS.COMPANY_PAGE_VIEWED, {
       timestamp: new Date().toISOString(),
       stock_code: stockCode || null,