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/views/EventDetail/index.js

@@ -12,7 +12,7 @@ import {
 } from '@chakra-ui/react';
 import { decodeEventId } from '@/utils/idEncoder';
 import { eventService } from '@/services/eventService';
-import { DynamicNewsDetailPanel } from '@/views/Community/components/DynamicNewsDetail';
+import { DynamicNewsDetailPanel } from '@components/EventDetailPanel';
 import { logger } from '@/utils/logger';
 import ErrorPage from '@/components/ErrorPage';