refactor: 重构 Community 目录，将公共组件迁移到 src/components/

- 迁移 klineDataCache.js 到 src/utils/stock/（被 StockChart 使用）
- 迁移 InvestmentCalendar 到 src/components/InvestmentCalendar/（被 Navbar、Dashboard 使用）
- 迁移 DynamicNewsDetail 到 src/components/EventDetailPanel/（被 EventDetail 使用）
- 更新所有相关导入路径，使用路径别名
- 保持 Community 目录其余结构不变

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

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

src/components/StockChart/TimelineChartModal.tsx

@@ -19,7 +19,7 @@ import {
 } from '@chakra-ui/react';
 import * as echarts from 'echarts';
 import dayjs from 'dayjs';
-import { klineDataCache, getCacheKey, fetchKlineData } from '@views/Community/components/StockDetailPanel/utils/klineDataCache';
+import { klineDataCache, getCacheKey, fetchKlineData } from '@utils/stock/klineDataCache';
 import { selectIsMobile } from '@store/slices/deviceSlice';
 import { StockInfo } from './types';