add device info collector

README.md

@@ -51,6 +51,34 @@ JS 全局对象：
 
 所有方法都使用 Cordova callback 风格，适合在 OutSystems client action 中封装。
 
+```js
+BluememeUtils.getDeviceInfo(function (info) {
+  console.log(info.deviceKey);
+}, error);
+```
+
+`getDeviceInfo` 返回：
+
+```json
+{
+  "deviceKey": "generated-and-persisted-uuid",
+  "platform": "Android",
+  "appIdentifier": "com.company.app",
+  "appVersion": "1.0.0",
+  "buildNumber": "1",
+  "osVersion": "15",
+  "sdkVersion": 35,
+  "deviceModel": "Google Pixel 8",
+  "manufacturer": "Google",
+  "brand": "google",
+  "model": "Pixel 8",
+  "locale": "ja-JP",
+  "timeZone": "Asia/Tokyo"
+}
+```
+
+`deviceKey` 首次调用时生成并保存在本地，用于标识当前 App 安装实例。App 卸载或清除数据后会重新生成。iOS 不返回 `sdkVersion`、`manufacturer`、`brand`，但会返回 `systemName`。
+
 ```js
 BluememeUtils.requestWifiPermission(success, error);