fix：优化和对齐版本

lib/common/services/device_header_service.dart

@@ -3,7 +3,7 @@ import 'dart:io' show Platform;
 import 'package:android_id/android_id.dart';
 import 'package:android_oaid/android_oaid.dart';
 import 'package:device_info_plus/device_info_plus.dart';
-import 'package:flutter/foundation.dart' show kIsWeb;
+import 'package:flutter/foundation.dart' show defaultTargetPlatform, kIsWeb;
 import 'package:flutter_paid/flutter_paid.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:package_info_plus/package_info_plus.dart';
@@ -12,6 +12,7 @@ import 'package:uuid/uuid.dart';
 
 import '../storage/storage_keys.dart';
 import '../storage/storage_service.dart';
+import '../privacy/privacy_gate.dart';
 
 /// 请求公共 + 平台身份 header 来源（完全对齐研值契约）。
 /// AuthInterceptor 每个请求注入 commonHeaders() + platformIdentityHeaders()，
@@ -52,9 +53,11 @@ class DeviceHeaderService {
 
     // Align with tradingagents-flutter-app: Android only initializes device
     // information after the user has accepted the privacy policy.
-    if (!kIsWeb &&
-        Platform.isAndroid &&
-        !StorageService.to.getBool(storagePrivacyAgreed)) {
+    if (requiresAndroidPrivacyConsent(
+      isWeb: kIsWeb,
+      platform: defaultTargetPlatform,
+      privacyAgreed: StorageService.to.getBool(storagePrivacyAgreed),
+    )) {
       return;
     }
 
@@ -184,10 +187,11 @@ class DeviceHeaderService {
 
   /// 是否需要首启隐私合规确认。**仅 Android**（合规要求：同意前不得采集设备
   /// 标识）。由 go_router redirect 调用，未同意则强制跳隐私页。
-  bool get privacyConsentRequired =>
-      !kIsWeb &&
-      Platform.isAndroid &&
-      !StorageService.to.getBool(storagePrivacyAgreed);
+  bool get privacyConsentRequired => requiresAndroidPrivacyConsent(
+    isWeb: kIsWeb,
+    platform: defaultTargetPlatform,
+    privacyAgreed: StorageService.to.getBool(storagePrivacyAgreed),
+  );
 
   /// iOS 首次启动页：仅在首次安装后展示一次。
   bool get iosStartupRequired =>