refactor(miniprogram): 消灭全部 any 类型 — 32处 → 0 (E3-1)

- catch (err: any) → catch (err: unknown) + instanceof Error 类型缩窄（6 文件 13 处）
- BLE 回调类型提取 BLEScanResult/BLEConnectionChangeResult/BLECharacteristicChangeResult/BLEServiceItem
- BLEManager 7 处 any 注解替换为具体接口类型
- request.ts method as any → method as ValidMethod 字面量联合类型
- appointment ScheduleItem 接口定义替代 any[]
- Taro.requestSubscribeMessage 使用类型断言替代 as any
- globalThis.__hms 使用 Record<string, unknown>
- TrendChart Canvas/useRef 保留 eslint-disable（微信 API 限制）
- 0 TS 错误，119 测试通过

apps/miniprogram/src/app.tsx

@@ -22,12 +22,12 @@ function App({ children }: PropsWithChildren<Record<string, unknown>>) {
   // 暴露全局 bridge 供 MCP/自动化测试调用（仅 dev 模式）
   useEffect(() => {
     if (process.env.NODE_ENV === 'production') return;
-    (globalThis as any).__hms = {
+    (globalThis as Record<string, unknown>).__hms = {
       restoreAuth: () => { restoreAuth(); return useAuthStore.getState(); },
       restoreUI,
       getAuthState: () => useAuthStore.getState(),
     };
-    return () => { delete (globalThis as any).__hms; };
+    return () => { delete (globalThis as Record<string, unknown>).__hms; };
   }, []);
 
   // Analytics 定时器：仅在页面可见时运行，后台时暂停以节省资源