fix(mp): Phase 0 基础设施修复 — secureGet 解密 + Storage 一致性

- secureGet: 移除错误的 startsWith 条件，始终尝试 XOR 解密
- request.ts: current_patient_id 读取改用 safeGet，清理改用 secureRemove
- health.ts: getTodaySummary 使用 getCachedPatientId 替代直接 Storage
- auth.ts: analytics_queue 清理改用明文 Taro.removeStorageSync

apps/miniprogram/src/services/health.ts

@@ -1,5 +1,5 @@
 import Taro from '@tarojs/taro';
-import { api } from './request';
+import { api, getCachedPatientId } from './request';
 
 export interface VitalSignInput {
   indicator_type: string;
@@ -17,7 +17,7 @@ export interface TodaySummary {
 }
 
 export async function getTodaySummary(patientId?: string) {
-  const pid = patientId || Taro.getStorageSync('current_patient_id') || '';
+  const pid = patientId || getCachedPatientId() || '';
   const params: Record<string, string> = {};
   if (pid) params.patient_id = pid;
   return api.get<TodaySummary>('/health/vital-signs/today', params);

apps/miniprogram/src/services/request.ts

@@ -146,7 +146,7 @@ function refreshHeadersCache(): void {
   cachedToken = safeGet('access_token');
   cachedTenantId = safeGet('tenant_id');
   if (!responseCache.getPatientId()) {
-    responseCache.setPatientId(Taro.getStorageSync('current_patient_id') || '');
+    responseCache.setPatientId(safeGet('current_patient_id') || '');
   }
   headersCacheTs = Date.now();
 }
@@ -214,8 +214,8 @@ async function doRefresh(): Promise<boolean> {
   secureRemove('user_roles');
   secureRemove('tenant_id');
   secureRemove('wechat_openid');
-  Taro.removeStorageSync('current_patient');
-  Taro.removeStorageSync('current_patient_id');
+  secureRemove('current_patient');
+  secureRemove('current_patient_id');
   clearRequestCache();
   responseCache.setPatientId('');
   headersCacheTs = 0;

apps/miniprogram/src/stores/auth.ts

@@ -263,7 +263,8 @@ export const useAuthStore = create<AuthState>((set, get) => ({
     secureRemove('wechat_openid');
     secureRemove('current_patient');
     secureRemove('current_patient_id');
-    secureRemove('analytics_queue');
+    // analytics_queue 使用明文存储（analytics.ts STORAGE_KEY = 'analytics_queue'）
+    Taro.removeStorageSync('analytics_queue');
     secureRemove('edit_patient');
     secureRemove('ai_chat_history');
     // 清理 BLE DataBuffer 缓存（key 格式：ble_buffer_{patientId}_{bucket}）

apps/miniprogram/src/utils/secure-storage.ts

@@ -57,16 +57,17 @@ export function secureGet(key: string): string {
   const raw = Taro.getStorageSync(prefixedKey);
   if (!raw || typeof raw !== 'string') return '';
 
-  if (raw.startsWith('{') || raw.startsWith('eyJ')) {
-    try {
-      const decoded = fromBase64(raw);
-      if (decoded) {
-        return xorEncrypt(decoded, ENCRYPTION_KEY);
-      }
-    } catch {
-      // fallthrough
+  // 始终尝试 base64 解码 + XOR 解密（secureSet 的写入格式）
+  try {
+    const decoded = fromBase64(raw);
+    if (decoded) {
+      return xorEncrypt(decoded, ENCRYPTION_KEY);
     }
+  } catch {
+    // fallthrough — 可能是未加密的旧数据
   }
+
+  // fallback: 兼容未加密的旧数据（明文 JSON/JWT 或其他值）
   return raw;
 }