refactor: 替换为统一搜索组件导入

- 移除旧组件导入: EventFilters, SearchBox, PopularKeywords, ImportanceLegend, InvestmentCalendar
- 添加 UnifiedSearchBox 组件导入（整合了多个组件功能）
- 移除未使用的 Chakra UI Link 组件导入
- 添加注释说明 Antd 组件占位符

为后续 JSX 布局重构做准备

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

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

src/views/Community/index.js

@@ -47,7 +47,6 @@ import {
   Image,
   Divider,
   useColorModeValue,
-  Link,
 } from '@chakra-ui/react';
 import {
   RepeatIcon,
@@ -63,21 +62,20 @@ import {
 
 // 导入组件
 import MidjourneyHeroSection from './components/MidjourneyHeroSection';
-import EventFilters from './components/EventFilters';
 import EventList from './components/EventList';
 import EventDetailModal from './components/EventDetailModal';
 import StockDetailPanel from './components/StockDetailPanel';
-import SearchBox from './components/SearchBox';
-import PopularKeywords from './components/PopularKeywords';
 import HotEvents from './components/HotEvents';
-import ImportanceLegend from './components/ImportanceLegend';
+import UnifiedSearchBox from './components/UnifiedSearchBox'; // 已整合 SearchBox、PopularKeywords、IndustryCascader
-import InvestmentCalendar from './components/InvestmentCalendar';
 import { eventService } from '../../services/eventService';
 import { logger } from '../../utils/logger';
 import { useNotification } from '../../contexts/NotificationContext';
 
 // 导航栏已由 MainLayout 提供，无需在此导入
 
+// const { RangePicker } = DatePicker;
+// const { Option } = AntSelect;
+
 const filterLabelMap = {
   date_range: v => v ? `日期: ${v}` : '',
   sort: v => v ? `排序: ${v === 'new' ? '最新' : v === 'hot' ? '热门' : v === 'returns' ? '收益率' : v}` : '',