feat: 历史事件添加涨幅字段

src/views/EventDetail/components/HistoricalEvents.js

@@ -282,6 +282,14 @@ const HistoricalEvents = ({
                                             重要性: {event.importance}
                                         </Badge>
                                     )}
+                                    {event.avg_change_pct !== undefined && event.avg_change_pct !== null && (
+                                        <Badge
+                                            colorScheme={event.avg_change_pct > 0 ? 'red' : event.avg_change_pct < 0 ? 'green' : 'gray'}
+                                            size="sm"
+                                        >
+                                            涨幅: {event.avg_change_pct > 0 ? '+' : ''}{event.avg_change_pct.toFixed(2)}%
+                                        </Badge>
+                                    )}
                                 </HStack>
 
                                 {/* 事件描述 */}