feat(web/miniapp): 高发病天气预警展示（#12）

miniapp/src/api/weather.ts

@@ -0,0 +1,12 @@
+import { get } from './request';
+
+export interface WeatherAlert {
+  id: string;
+  disease: string;
+  level: string;
+  reason: string;
+  createdAt?: string;
+}
+
+export const getWeatherAlerts = (limit = 5) =>
+  get<WeatherAlert[]>('/weather/alerts', { limit });

miniapp/src/pages/alerts/index.module.scss

@@ -6,6 +6,47 @@
   padding-bottom: $spacing-xl;
 }
 
+.weatherWrap {
+  display: flex;
+  flex-direction: column;
+  gap: $spacing-sm;
+  margin: $spacing-md $spacing-lg 0;
+}
+
+.weatherCard {
+  background: rgba(255, 125, 0, 0.08);
+  border-radius: $radius-md;
+  padding: $spacing-md;
+}
+
+.weatherHeader {
+  display: flex;
+  align-items: center;
+  gap: $spacing-sm;
+  margin-bottom: 4rpx;
+}
+
+.weatherBadge {
+  font-size: $font-size-xs;
+  color: $color-warning;
+  background: rgba(255, 125, 0, 0.15);
+  padding: 4rpx $spacing-sm;
+  border-radius: $radius-round;
+  flex-shrink: 0;
+}
+
+.weatherDisease {
+  font-size: $font-size-md;
+  font-weight: $font-weight-medium;
+  color: $color-text-primary;
+}
+
+.weatherReason {
+  font-size: $font-size-xs;
+  color: $color-text-secondary;
+  line-height: $line-height-normal;
+}
+
 .filterBar {
   display: flex;
   background: $color-bg-card;

miniapp/src/pages/alerts/index.tsx

@@ -3,6 +3,7 @@ import { View, Text } from '@tarojs/components';
 import Taro, { useDidShow, usePullDownRefresh } from '@tarojs/taro';
 import styles from './index.module.scss';
 import { getAlarms, acknowledgeAlarm, getAlarmClip } from '@/api/alarms';
+import { getWeatherAlerts, type WeatherAlert } from '@/api/weather';
 import {
   formatDateTime,
   formatRelativeTime,
@@ -16,6 +17,7 @@ import type { Alarm } from '@/types';
 
 const AlertsPage: React.FC = () => {
   const [alarms, setAlarms] = useState<Alarm[]>([]);
+  const [weatherAlerts, setWeatherAlerts] = useState<WeatherAlert[]>([]);
   const [filterOpen, setFilterOpen] = useState(true);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState('');
@@ -25,6 +27,8 @@ const AlertsPage: React.FC = () => {
       setError('');
       const res = await getAlarms({ openOnly: filterOpen }).catch(() => [] as Alarm[]);
       setAlarms(res);
+      const weatherRes = await getWeatherAlerts(5).catch(() => [] as WeatherAlert[]);
+      setWeatherAlerts(weatherRes);
     } catch (err) {
       console.error('[Alerts] 数据加载失败:', err);
       setError(err instanceof Error ? err.message : '数据加载失败');
@@ -147,6 +151,23 @@ const AlertsPage: React.FC = () => {
         </View>
       </View>
 
+      {/* 高发病天气预警 */}
+      {weatherAlerts.length > 0 ? (
+        <View className={styles.weatherWrap}>
+          {weatherAlerts.map((w) => (
+            <View key={w.id} className={styles.weatherCard}>
+              <View className={styles.weatherHeader}>
+                <Text className={styles.weatherBadge}>
+                  {w.level === 'orange' ? '高风险' : w.level === 'red' ? '极高风险' : '注意'}
+                </Text>
+                <Text className={styles.weatherDisease}>{w.disease}</Text>
+              </View>
+              <Text className={styles.weatherReason}>{w.reason}</Text>
+            </View>
+          ))}
+        </View>
+      ) : null}
+
       {alarms.length === 0 ? (
         <View className={styles.emptyWrap}>
           <Text className={styles.emptyIcon}>{filterOpen ? '✅' : '🔔'}</Text>

web/src/dal/weather.ts

@@ -0,0 +1,12 @@
+import { get } from '../api/http';
+
+export interface WeatherAlert {
+  id: string;
+  disease: string;
+  level: string;
+  reason: string;
+  createdAt?: string;
+}
+
+export const listWeatherAlerts = (limit = 5) =>
+  get<WeatherAlert[]>('/weather/alerts', { params: { limit } });

web/src/pages/Alert.tsx

@@ -1,9 +1,10 @@
-import { Button, Tag, message } from 'antd';
+import { Button, Card, Space, Tag, message } from 'antd';
 import { CheckOutlined } from '@ant-design/icons';
 import { ProTable, type ProColumns } from '@ant-design/pro-components';
-import { useState } from 'react';
+import { useEffect, useState } from 'react';
 import dayjs from 'dayjs';
 import { getAlertClip, listAlerts, markAlertRead, markAllRead, type Alert } from '../dal/alert';
+import { listWeatherAlerts, type WeatherAlert } from '../dal/weather';
 
 const LEVEL_MAP: Record<string, { color: string; text: string }> = {
   info: { color: 'blue', text: '提示' },
@@ -19,6 +20,37 @@ const LEVEL_MAP: Record<string, { color: string; text: string }> = {
 const levelOf = (alert: Alert) => alert.level || alert.severity || 'info';
 const isRead = (alert: Alert) => alert.read ?? alert.acknowledged ?? false;
 
+const WEATHER_LEVEL_COLORS: Record<string, string> = {
+  yellow: 'gold',
+  orange: 'orange',
+  red: 'red',
+};
+
+function WeatherAlertsBlock() {
+  const [alerts, setAlerts] = useState<WeatherAlert[]>([]);
+  useEffect(() => {
+    listWeatherAlerts(5)
+      .then(setAlerts)
+      .catch(() => {});
+  }, []);
+  if (alerts.length === 0) return null;
+  return (
+    <Card title="高发病天气预警" size="small" style={{ marginBottom: 16 }}>
+      <Space direction="vertical" style={{ width: '100%' }}>
+        {alerts.map((a) => (
+          <div key={a.id}>
+            <Tag color={WEATHER_LEVEL_COLORS[a.level] || 'gold'}>
+              {a.level === 'orange' ? '高风险' : a.level === 'red' ? '极高风险' : '注意'}
+            </Tag>
+            <b>{a.disease}</b>
+            <span style={{ marginLeft: 8, color: '#666' }}>{a.reason}</span>
+          </div>
+        ))}
+      </Space>
+    </Card>
+  );
+}
+
 export default function AlertPage() {
   const [, setTick] = useState(0);
 
@@ -89,6 +121,8 @@ export default function AlertPage() {
   ];
 
   return (
+    <>
+      <WeatherAlertsBlock />
       <ProTable<Alert>
       rowKey="id"
       columns={columns}
@@ -110,5 +144,6 @@ export default function AlertPage() {
         </Button>,
       ]}
       />
+    </>
   );
 }