chore: release client-v1.0.57

设备/状态管理屏（查看本店在线设备/会话，管理员可强制下线）、登录携带设备信息、
会话心跳（/auth/ping）、被踢下线/会话失效提示、顶栏精简 + 用户名移至左侧栏底部。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

client/lib/screens/auth/login_screen.dart

@@ -244,6 +244,17 @@ class _LoginScreenState extends ConsumerState<LoginScreen> {
 
   @override
   Widget build(BuildContext context) {
+    // 被踢下线 / 会话失效：登出后跳回登录页，弹一次提示并清空
+    ref.listen<String?>(sessionEndedMessageProvider, (prev, next) {
+      if (next != null && next.isNotEmpty) {
+        WidgetsBinding.instance.addPostFrameCallback((_) {
+          if (!mounted) return;
+          ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+              content: Text(next), backgroundColor: AppTheme.danger));
+          ref.read(sessionEndedMessageProvider.notifier).state = null;
+        });
+      }
+    });
     return Scaffold(
       backgroundColor: AppTheme.primaryDark,
       body: Stack(

client/lib/screens/devices/device_management_screen.dart

@@ -0,0 +1,237 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:intl/intl.dart';
+
+import '../../core/auth/auth_state.dart';
+import '../../core/theme/app_theme.dart';
+import '../../models/session.dart';
+import '../../providers/session_provider.dart';
+import '../../widgets/data_table_card.dart';
+import '../../widgets/mobile_list_card.dart';
+
+/// 设备 / 状态管理：本店在线设备/会话列表。
+/// 所有登录用户只读；管理员/超级管理员可「强制下线」其他登录者。
+class DeviceManagementScreen extends ConsumerWidget {
+  const DeviceManagementScreen({super.key});
+
+  static final _fmt = DateFormat('MM-dd HH:mm');
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final asyncSessions = ref.watch(sessionListProvider);
+    final role = ref.watch(authStateProvider.select((s) => s.user?.role));
+    final canKick = role == 'admin' || role == 'superadmin';
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Padding(
+          padding: const EdgeInsets.fromLTRB(24, 20, 24, 8),
+          child: Row(
+            children: [
+              const Text('设备 / 状态管理',
+                  style:
+                      TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
+              const SizedBox(width: 12),
+              Text(
+                canKick ? '管理员可强制下线其他登录设备' : '仅查看，无操作权限',
+                style: const TextStyle(
+                    fontSize: 12, color: AppTheme.textSecondary),
+              ),
+              const Spacer(),
+              IconButton(
+                tooltip: '刷新',
+                icon: const Icon(Icons.refresh, size: 20),
+                onPressed: () =>
+                    ref.read(sessionListProvider.notifier).reload(),
+              ),
+            ],
+          ),
+        ),
+        Expanded(
+          child: asyncSessions.when(
+            loading: () =>
+                const Center(child: CircularProgressIndicator()),
+            error: (e, _) => Center(
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  const Icon(Icons.error_outline,
+                      size: 40, color: AppTheme.textSecondary),
+                  const SizedBox(height: 12),
+                  Text('加载失败：$e',
+                      style:
+                          const TextStyle(color: AppTheme.textSecondary)),
+                  const SizedBox(height: 12),
+                  ElevatedButton(
+                    onPressed: () =>
+                        ref.read(sessionListProvider.notifier).reload(),
+                    child: const Text('重试'),
+                  ),
+                ],
+              ),
+            ),
+            data: (sessions) =>
+                _buildTable(context, ref, sessions, canKick),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildTable(BuildContext context, WidgetRef ref,
+      List<DeviceSession> sessions, bool canKick) {
+    Widget onlineBadge(bool online) => Row(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Icon(Icons.circle,
+                size: 9,
+                color: online ? AppTheme.success : AppTheme.textSecondary),
+            const SizedBox(width: 4),
+            Text(online ? '在线' : '离线',
+                style: TextStyle(
+                    fontSize: 13,
+                    color:
+                        online ? AppTheme.success : AppTheme.textSecondary)),
+          ],
+        );
+
+    String fmt(DateTime? t) => t == null ? '-' : _fmt.format(t);
+
+    Widget? kickButton(DeviceSession s, {bool dense = false}) {
+      if (!canKick) return null;
+      if (s.isCurrent) {
+        return const Text('当前设备',
+            style: TextStyle(fontSize: 12, color: AppTheme.textSecondary));
+      }
+      return TextButton(
+        key: Key('btn_kick_${s.id}'),
+        onPressed: () => _confirmKick(context, ref, s),
+        child: Text('强制下线',
+            style: TextStyle(
+                fontSize: dense ? 13 : 12, color: AppTheme.danger)),
+      );
+    }
+
+    Widget sessionCard(DeviceSession s) {
+      final action = kickButton(s, dense: true);
+      return MobileListCard(
+        title: Text(s.username.isEmpty ? '用户#${s.userId}' : s.username),
+        subtitle: Text('${s.platformLabel} · ${s.platformClassLabel}'),
+        trailing: onlineBadge(s.online),
+        fields: [
+          if (s.deviceName.isNotEmpty) MobileCardField('设备', s.deviceName),
+          if (s.ip.isNotEmpty) MobileCardField('IP', s.ip),
+          MobileCardField('登录时间', fmt(s.createdAt)),
+          MobileCardField('最近活跃', fmt(s.lastSeenAt)),
+          if (s.isCurrent) const MobileCardField('备注', '当前设备'),
+        ],
+        actions: action == null ? null : [action],
+      );
+    }
+
+    return DataTableCard(
+      mobileCards: sessions.map(sessionCard).toList(),
+      columns: const [
+        DataColumn(label: Text('用户')),
+        DataColumn(label: Text('平台')),
+        DataColumn(label: Text('设备')),
+        DataColumn(label: Text('IP')),
+        DataColumn(label: Text('登录时间')),
+        DataColumn(label: Text('最近活跃')),
+        DataColumn(label: Text('状态')),
+        DataColumn(label: Text('操作')),
+      ],
+      rows: sessions.isEmpty
+          ? [
+              const DataRow(cells: [
+                DataCell(Text('暂无在线设备',
+                    style: TextStyle(color: AppTheme.textSecondary))),
+                DataCell(SizedBox()),
+                DataCell(SizedBox()),
+                DataCell(SizedBox()),
+                DataCell(SizedBox()),
+                DataCell(SizedBox()),
+                DataCell(SizedBox()),
+                DataCell(SizedBox()),
+              ])
+            ]
+          : sessions.map((s) {
+              return DataRow(cells: [
+                DataCell(Row(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    Text(s.username.isEmpty ? '用户#${s.userId}' : s.username,
+                        style:
+                            const TextStyle(fontWeight: FontWeight.w500)),
+                    if (s.isCurrent) ...[
+                      const SizedBox(width: 6),
+                      Container(
+                        padding: const EdgeInsets.symmetric(
+                            horizontal: 6, vertical: 1),
+                        decoration: BoxDecoration(
+                          color: AppTheme.primary.withAlpha(26),
+                          borderRadius: BorderRadius.circular(4),
+                        ),
+                        child: const Text('本机',
+                            style: TextStyle(
+                                fontSize: 11, color: AppTheme.primary)),
+                      ),
+                    ],
+                  ],
+                )),
+                DataCell(Text('${s.platformLabel} · ${s.platformClassLabel}')),
+                DataCell(Text(s.deviceName.isEmpty ? '-' : s.deviceName)),
+                DataCell(Text(s.ip.isEmpty ? '-' : s.ip,
+                    style: const TextStyle(
+                        fontFamily: 'monospace',
+                        fontSize: 12,
+                        color: AppTheme.textSecondary))),
+                DataCell(Text(fmt(s.createdAt))),
+                DataCell(Text(fmt(s.lastSeenAt))),
+                DataCell(onlineBadge(s.online)),
+                DataCell(kickButton(s) ?? const SizedBox()),
+              ]);
+            }).toList(),
+    );
+  }
+
+  Future<void> _confirmKick(
+      BuildContext context, WidgetRef ref, DeviceSession s) async {
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: const Text('强制下线'),
+        content: Text(
+            '确认将「${s.username.isEmpty ? '用户#${s.userId}' : s.username}」的'
+            '${s.platformLabel}设备下线？该设备约 30 秒内退出登录。'),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(ctx).pop(false),
+            child: const Text('取消'),
+          ),
+          ElevatedButton(
+            onPressed: () => Navigator.of(ctx).pop(true),
+            style: ElevatedButton.styleFrom(
+                backgroundColor: AppTheme.danger,
+                foregroundColor: Colors.white),
+            child: const Text('强制下线'),
+          ),
+        ],
+      ),
+    );
+    if (confirmed != true) return;
+    try {
+      await ref.read(sessionListProvider.notifier).forceLogout(s.id);
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
+            content: Text('已下线'), backgroundColor: AppTheme.success));
+      }
+    } catch (e) {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+            content: Text('操作失败：$e'), backgroundColor: AppTheme.danger));
+      }
+    }
+  }
+}

client/lib/screens/shell/app_shell.dart

@@ -11,6 +11,7 @@ import '../../core/config/app_config.dart';
 import '../../core/responsive/responsive.dart';
 import '../../core/theme/app_theme.dart';
 import '../../providers/connectivity_provider.dart';
+import '../../providers/session_heartbeat.dart';
 import '../../providers/shop_provider.dart';
 import '../../providers/update_provider.dart';
 import '../../core/update/app_updater.dart';
@@ -72,6 +73,7 @@ class _AppShellState extends ConsumerState<AppShell> {
         path: '/finance'),
     _NavItem(icon: Icons.people, label: '往来单位', path: '/partners'),
     _NavItem(icon: Icons.category, label: '基础数据', path: '/products'),
+    _NavItem(icon: Icons.devices, label: '设备管理', path: '/devices'),
     _NavItem(icon: Icons.settings, label: '系统设置', path: '/settings'),
     _NavItem(icon: Icons.info_outline, label: '关于我们', path: '/about'),
   ];
@@ -166,6 +168,8 @@ class _AppShellState extends ConsumerState<AppShell> {
   @override
   Widget build(BuildContext context) {
     final user = ref.watch(authStateProvider).user;
+    // 登录态心跳：随 shell 挂载存活，~30s 一次，感知被踢下线
+    ref.watch(sessionHeartbeatProvider);
     final isOnline = ref.watch(connectivityProvider);
     final location = GoRouterState.of(context).matchedLocation;
     final isMobile = context.isMobile;
@@ -237,35 +241,7 @@ class _AppShellState extends ConsumerState<AppShell> {
                 ],
                 const Spacer(),
                 if (user != null) ...[
-                  // 窄屏隐藏门店号/用户名文字块，仅保留用户菜单，避免顶栏拥挤
-                  if (!isMobile) ...[
-                    MouseRegion(
-                      cursor: SystemMouseCursors.click,
-                      child: GestureDetector(
-                        onTap: () =>
-                            _showShopPanel(context, user, version: appVersion),
-                        child: Row(
-                          mainAxisSize: MainAxisSize.min,
-                          children: [
-                            const Icon(Icons.business,
-                                color: Colors.white70, size: 14),
-                            const SizedBox(width: 4),
-                            Text(user.shopNo,
-                                style: const TextStyle(
-                                    color: Colors.white70, fontSize: 13)),
-                          ],
-                        ),
-                      ),
-                    ),
-                    const SizedBox(width: 20),
-                    const Icon(Icons.person_outline,
-                        color: Colors.white70, size: 14),
-                    const SizedBox(width: 4),
-                    Text(user.username,
-                        style: const TextStyle(
-                            color: Colors.white70, fontSize: 13)),
-                    const SizedBox(width: 8),
-                  ],
+                  // 门店号已移除；用户名移到左侧栏底部。顶栏仅保留「个人设置」下拉。
                   PopupMenuButton<String>(
                     icon: const Icon(Icons.keyboard_arrow_down,
                         color: Colors.white70),
@@ -324,6 +300,53 @@ class _AppShellState extends ConsumerState<AppShell> {
                             }).toList(),
                           ),
                         ),
+                        // 当前登录账号（顶栏移下来的用户名）：点击弹门店/账号/版本面板
+                        if (user != null) ...[
+                          const Divider(height: 1, color: Colors.white24),
+                          SizedBox(
+                            height: 48,
+                            child: Material(
+                              color: Colors.transparent,
+                              child: InkWell(
+                                onTap: () => _showShopPanel(context, user,
+                                    version: appVersion),
+                                hoverColor: Colors.white.withAlpha(13),
+                                splashColor: Colors.white.withAlpha(26),
+                                child: Row(
+                                  children: [
+                                    SizedBox(
+                                        width: _sidebarExpanded ? 16 : 3),
+                                    Expanded(
+                                      child: Row(
+                                        mainAxisAlignment: _sidebarExpanded
+                                            ? MainAxisAlignment.start
+                                            : MainAxisAlignment.center,
+                                        children: [
+                                          const Icon(Icons.person_outline,
+                                              color: Colors.white60,
+                                              size: 20),
+                                          if (_sidebarExpanded) ...[
+                                            const SizedBox(width: 12),
+                                            Expanded(
+                                              child: Text(
+                                                user.username,
+                                                style: const TextStyle(
+                                                    color: Colors.white70,
+                                                    fontSize: 14),
+                                                overflow:
+                                                    TextOverflow.ellipsis,
+                                              ),
+                                            ),
+                                          ],
+                                        ],
+                                      ),
+                                    ),
+                                  ],
+                                ),
+                              ),
+                            ),
+                          ),
+                        ],
                         // 退出登录（侧栏底部常驻；统一为左侧导航唯一退出入口）
                         const Divider(height: 1, color: Colors.white24),
                         SizedBox(