feat(miniprogram): 用药提醒从 localStorage 迁移到服务端 API

- 新增 medication-reminder.ts service（list/create/update/delete）
- 重写 medication/index.tsx 页面，通过后端 API 持久化数据
- 支持乐观锁（version）、患者 ID 关联、提醒时间数组
- 移除旧的 localStorage 读写逻辑

apps/miniprogram/src/pages/pkg-profile/medication/index.tsx

@@ -1,111 +1,136 @@
-import React, { useState, useEffect } from 'react';
+import React, { useState, useEffect, useCallback } from 'react';
 import { View, Text, Input, Picker } from '@tarojs/components';
 import Taro from '@tarojs/taro';
 import EmptyState from '../../../components/EmptyState';
+import {
+  listReminders,
+  createReminder,
+  updateReminder,
+  deleteReminder,
+  type MedicationReminder,
+} from '../../../services/medication-reminder';
 import './index.scss';
 
-interface MedicationReminder {
-  id: string;
-  name: string;
-  dosage: string;
-  time: string;
-  enabled: boolean;
-}
-
-const STORAGE_KEY = 'medication_reminders';
-
-function loadReminders(): MedicationReminder[] {
-  return Taro.getStorageSync(STORAGE_KEY) || [];
-}
-
-function saveReminders(reminders: MedicationReminder[]) {
-  Taro.setStorageSync(STORAGE_KEY, reminders);
-}
-
 export default function MedicationReminder() {
   const [reminders, setReminders] = useState<MedicationReminder[]>([]);
+  const [loading, setLoading] = useState(true);
   const [showForm, setShowForm] = useState(false);
   const [formName, setFormName] = useState('');
   const [formDosage, setFormDosage] = useState('');
   const [formTime, setFormTime] = useState('08:00');
 
-  useEffect(() => {
-    setReminders(loadReminders());
+  const fetchReminders = useCallback(async () => {
+    try {
+      const res = await listReminders();
+      setReminders(res.data ?? []);
+    } catch {
+      Taro.showToast({ title: '加载失败', icon: 'none' });
+    } finally {
+      setLoading(false);
+    }
   }, []);
 
-  const updateReminders = (updated: MedicationReminder[]) => {
-    setReminders(updated);
-    saveReminders(updated);
+  useEffect(() => { fetchReminders(); }, [fetchReminders]);
+
+  const handleToggle = async (r: MedicationReminder) => {
+    try {
+      await updateReminder(r.id, {
+        is_active: !r.is_active,
+        version: r.version,
+      });
+      fetchReminders();
+    } catch {
+      Taro.showToast({ title: '操作失败', icon: 'none' });
+    }
   };
 
-  const handleToggle = (id: string) => {
-    const updated = reminders.map((r) =>
-      r.id === id ? { ...r, enabled: !r.enabled } : r
-    );
-    updateReminders(updated);
-  };
-
-  const handleDelete = (id: string) => {
+  const handleDelete = (r: MedicationReminder) => {
     Taro.showModal({
       title: '确认删除',
       content: '确定要删除这个提醒吗？',
-    }).then((res) => {
+    }).then(async (res) => {
       if (res.confirm) {
-        updateReminders(reminders.filter((r) => r.id !== id));
+        try {
+          await deleteReminder(r.id, r.version);
+          Taro.showToast({ title: '已删除', icon: 'success' });
+          fetchReminders();
+        } catch {
+          Taro.showToast({ title: '删除失败', icon: 'none' });
+        }
       }
     });
   };
 
-  const handleAdd = () => {
+  const handleAdd = async () => {
     if (!formName.trim()) {
       Taro.showToast({ title: '请输入药品名称', icon: 'none' });
       return;
     }
-    const newReminder: MedicationReminder = {
-      id: Date.now().toString(),
-      name: formName.trim(),
-      dosage: formDosage.trim(),
-      time: formTime,
-      enabled: true,
-    };
-    updateReminders([...reminders, newReminder]);
-    setFormName('');
-    setFormDosage('');
-    setFormTime('08:00');
-    setShowForm(false);
-    Taro.showToast({ title: '添加成功', icon: 'success' });
+    const patientId = Taro.getStorageSync('current_patient_id');
+    if (!patientId) {
+      Taro.showToast({ title: '请先绑定患者档案', icon: 'none' });
+      return;
+    }
+    try {
+      await createReminder({
+        patient_id: patientId,
+        medication_name: formName.trim(),
+        dosage: formDosage.trim() || undefined,
+        reminder_times: [formTime],
+        is_active: true,
+      });
+      setFormName('');
+      setFormDosage('');
+      setFormTime('08:00');
+      setShowForm(false);
+      Taro.showToast({ title: '添加成功', icon: 'success' });
+      fetchReminders();
+    } catch {
+      Taro.showToast({ title: '添加失败', icon: 'none' });
+    }
   };
 
   const nameInitial = (name: string) => {
     return name ? name.charAt(0) : '药';
   };
 
+  if (loading) {
+    return (
+      <View className='medication-page'>
+        <Text className='page-title'>用药提醒</Text>
+        <View style={{ padding: '40px 0', textAlign: 'center' }}>
+          <Text style={{ color: '#94A3B8', fontSize: '28px' }}>加载中...</Text>
+        </View>
+      </View>
+    );
+  }
+
   return (
     <View className='medication-page'>
       <Text className='page-title'>用药提醒</Text>
 
       <View className='reminder-list'>
         {reminders.map((r) => (
-          <View className={`reminder-card ${!r.enabled ? 'disabled' : ''}`} key={r.id}>
+          <View className={`reminder-card ${!r.is_active ? 'disabled' : ''}`} key={r.id}>
             <View className='reminder-avatar'>
-              <Text className='reminder-avatar-text'>{nameInitial(r.name)}</Text>
+              <Text className='reminder-avatar-text'>{nameInitial(r.medication_name)}</Text>
             </View>
             <View className='reminder-info'>
-              <Text className='reminder-name'>{r.name}</Text>
+              <Text className='reminder-name'>{r.medication_name}</Text>
               <Text className='reminder-dosage'>
-                {r.dosage} | {r.time}
+                {r.dosage || '-'} | {r.reminder_times?.join(', ') || '-'}
               </Text>
             </View>
             <View className='reminder-actions'>
               <View
-                className={`toggle ${r.enabled ? 'on' : 'off'}`}
-                onClick={() => handleToggle(r.id)}
+                className={`toggle ${r.is_active ? 'on' : 'off'}`}
+                onClick={() => handleToggle(r)}
               >
                 <View className='toggle-dot' />
               </View>
               <Text
                 className='delete-btn'
-                onClick={() => handleDelete(r.id)}
+                onClick={() => handleDelete(r)}
               >
                 删除
               </Text>

apps/miniprogram/src/services/medication-reminder.ts

@@ -0,0 +1,68 @@
+import Taro from '@tarojs/taro';
+import { api } from './request';
+
+export interface MedicationReminder {
+  id: string;
+  patient_id: string;
+  medication_name: string;
+  dosage?: string;
+  frequency?: string;
+  reminder_times: string[];
+  start_date?: string;
+  end_date?: string;
+  is_active: boolean;
+  notes?: string;
+  version: number;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface CreateReminderReq {
+  patient_id: string;
+  medication_name: string;
+  dosage?: string;
+  frequency?: string;
+  reminder_times: string[];
+  start_date?: string;
+  end_date?: string;
+  is_active?: boolean;
+  notes?: string;
+}
+
+export interface UpdateReminderReq {
+  medication_name?: string;
+  dosage?: string;
+  frequency?: string;
+  reminder_times?: string[];
+  start_date?: string;
+  end_date?: string;
+  is_active?: boolean;
+  notes?: string;
+  version: number;
+}
+
+function getPatientId(): string {
+  return Taro.getStorageSync('current_patient_id') || '';
+}
+
+export async function listReminders() {
+  const patientId = getPatientId();
+  if (!patientId) return { data: [] as MedicationReminder[], total: 0 };
+  return api.get<{ data: MedicationReminder[]; total: number }>(
+    `/health/patients/${patientId}/medication-reminders`,
+    { page: 1, page_size: 100 },
+    0,
+  );
+}
+
+export async function createReminder(req: CreateReminderReq) {
+  return api.post<MedicationReminder>('/health/medication-reminders', req);
+}
+
+export async function updateReminder(id: string, req: UpdateReminderReq) {
+  return api.put<MedicationReminder>(`/health/medication-reminders/${id}`, req);
+}
+
+export async function deleteReminder(id: string, version: number) {
+  return api.delete<void>(`/health/medication-reminders/${id}`, { version });
+}