refactor(StockOverview): 迁移毛玻璃效果到统一配置 - 批次4

- index.js: 使用 GLASS_BLUR.lg 替代 blur(20px)
- glassTheme.js: 从全局 glassConfig 导入配置
- FlexScreen/index.tsx: 使用 GLASS_BLUR.lg
- QuoteTile.tsx: 使用 GLASS_BLUR.sm
- AlertDetailDrawer.js: 使用 GLASS_BLUR.xs/lg

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

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

src/views/StockOverview/index.js

@@ -57,6 +57,7 @@ import { echarts } from '@lib/echarts';
 import { logger } from '../../utils/logger';
 import tradingDays from '../../data/tradingDays.json';
 import { useStockOverviewEvents } from './hooks/useStockOverviewEvents';
+import { GLASS_BLUR } from '@/constants/glassConfig';
 
 // 交易日 Set，用于快速查找
 const tradingDaysSet = new Set(tradingDays);
@@ -894,7 +895,7 @@ const StockOverview = () => {
           ) : (
             <Card
               bg={cardBg}
-              backdropFilter="blur(20px)"
+              backdropFilter={GLASS_BLUR.lg}
               borderWidth="1px"
               borderColor={borderColor}
               borderRadius="24px"