feat(权限): 改进蓝牙权限处理并优化权限组加载

添加动态获取蓝牙权限的功能，根据平台和Android版本返回不同的权限列表。将权限组加载改为异步方式，并使用FutureBuilder优化UI加载体验。移除不必要的ListView嵌套，改为SingleChildScrollView提升性能。

lib/modules/permissions/models/permission_group.dart

@@ -1,5 +1,7 @@
+import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:permission_handler/permission_handler.dart';
+import 'package:device_info_plus/device_info_plus.dart';
 
 class PermissionGroup {
   final String titleKey;
@@ -12,7 +14,37 @@ class PermissionGroup {
     required this.permissions,
   });
 
-  static List<PermissionGroup> getPlatformGroups() {
+  /// 获取蓝牙权限列表（根据平台和Android版本）
+  static Future<List<Permission>> _getBluetoothPermissions() async {
+    if (Platform.isAndroid) {
+      try {
+        final deviceInfo = DeviceInfoPlugin();
+        final androidInfo = await deviceInfo.androidInfo;
+        // Android 12+ (API 31+) 使用新的蓝牙权限
+        if (androidInfo.version.sdkInt >= 31) {
+          return [
+            Permission.bluetoothScan,
+            Permission.bluetoothConnect,
+          ];
+        }
+        // Android 12以下不显示蓝牙权限（因为会自动授予）
+        return [];
+      } catch (e) {
+        print('获取Android版本信息失败: $e');
+        return [];
+      }
+    } else if (Platform.isIOS) {
+      // iOS使用基本蓝牙权限
+      return [Permission.bluetooth];
+    }
+    return [];
+  }
+
+  /// 获取平台特定的权限组列表（异步方法）
+  static Future<List<PermissionGroup>> getPlatformGroups() async {
+    // 动态获取蓝牙权限列表
+    final bluetoothPermissions = await _getBluetoothPermissions();
+    
     return [
       // 通讯权限组 - 仅Android（包含联系人权限）
       const PermissionGroup(
@@ -20,11 +52,11 @@ class PermissionGroup {
         icon: Icons.phone_android,
         permissions: [Permission.phone, Permission.sms, Permission.contacts],
       ),
-      // 蓝牙权限组 - Android 12+
-      const PermissionGroup(
+      // 蓝牙权限组 - 根据平台动态获取权限
+      PermissionGroup(
         titleKey: 'bluetoothPermissions',
         icon: Icons.bluetooth,
-        permissions: [Permission.bluetoothScan, Permission.bluetoothConnect],
+        permissions: bluetoothPermissions,
       ),
       // 通知权限组
       const PermissionGroup(

lib/modules/permissions/views/permissions_view.dart

@@ -46,39 +46,52 @@ class PermissionsView extends GetView<PermissionsController> {
 
         return RefreshIndicator(
           onRefresh: controller.checkAllPermissions,
-          child: ListView(
+          child: SingleChildScrollView(
             padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 16.h),
-            children: _buildPermissionGroups(isDarkMode),
+            child: _buildPermissionGroups(isDarkMode),
           ),
         );
       }),
     );
   }
 
-  List<Widget> _buildPermissionGroups(bool isDarkMode) {
-    final groups = PermissionGroup.getPlatformGroups();
-    final List<Widget> widgets = [];
-
-    for (int i = 0; i < groups.length; i++) {
-      final group = groups[i];
-      
-      // 过滤平台特定权限
-      if (_shouldShowGroup(group)) {
-        widgets.add(_buildPermissionSection(
-          group.titleKey,
-          group.icon,
-          group.permissions,
-          controller.permissionStatuses,
-          isDarkMode,
-        ));
+  Widget _buildPermissionGroups(bool isDarkMode) {
+    return FutureBuilder<List<PermissionGroup>>(
+      future: PermissionGroup.getPlatformGroups(),
+      builder: (context, snapshot) {
+        if (snapshot.connectionState == ConnectionState.waiting) {
+          return const Center(child: CircularProgressIndicator());
+        }
         
-        if (i < groups.length - 1) {
-          widgets.add(SizedBox(height: 20.h));
+        if (snapshot.hasError) {
+          return Center(child: Text('加载权限组失败: ${snapshot.error}'));
         }
-      }
-    }
+        
+        final groups = snapshot.data ?? [];
+        final List<Widget> widgets = [];
 
-    return widgets;
+        for (int i = 0; i < groups.length; i++) {
+          final group = groups[i];
+          
+          // 过滤平台特定权限
+          if (_shouldShowGroup(group)) {
+            widgets.add(_buildPermissionSection(
+              group.titleKey,
+              group.icon,
+              group.permissions,
+              controller.permissionStatuses,
+              isDarkMode,
+            ));
+            
+            if (i < groups.length - 1) {
+              widgets.add(SizedBox(height: 20.h));
+            }
+          }
+        }
+        
+        return Column(children: widgets);
+       },
+     );
   }
 
   bool _shouldShowGroup(PermissionGroup group) {