部分自动优化

lib/pages/battery_health_page.dart

@@ -2,9 +2,7 @@ import 'dart:async';
 import 'dart:developer' as dev;
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:flutter_svg/flutter_svg.dart';
 import 'package:device_info_plus/device_info_plus.dart';
-import 'package:shared_preferences/shared_preferences.dart';
 
 // 检查这些导入是否正确
 import '../models/device_matching.dart'; // ✅ 存在