Add dedicated desktop management pages

README.md

@@ -122,7 +122,7 @@ In the application, generate or copy the monitoring SSH key, add the Hub profile
 
 `v0.1.0-alpha.4` is an early testing release, not a production security appliance. Windows and Linux builds, control-plane tests, Bash syntax checks, self-contained `linux-x64`/`linux-arm64` artifacts, and checksums are automated in GitHub Actions.
 
-The current development branch implements Windows SSH monitoring, the Hub/Node WireGuard installer, directional Links, one-time enrollment, separate mTLS Agent, Operator, and source-scoped Automation identities, certificate revocation/re-enrollment, SQLite control state, audit, authenticated event streaming, Windows Control API integration, and a bounded durable Agent buffer with downsampling.
+The current development branch implements dedicated Windows pages for Servers, Links, Sessions, and Settings; SSH monitoring; the Hub/Node WireGuard installer; directional Links; one-time enrollment; separate mTLS Agent, Operator, and source-scoped Automation identities; certificate revocation/re-enrollment; SQLite control state; audit; authenticated event streaming; Windows Control API integration; and a bounded durable Agent buffer with downsampling.
 
 Reconnect reconciliation is implemented with a durable SQLite marker: after a Node returns, the Hub reapplies the latest effective disabled policies and clears the marker only after the firewall confirms success. Linux CI exercises the real Control-to-helper process boundary, including a helper failure and Control process reconstruction over the same SQLite database. CI also runs a 100-Node concurrent heartbeat and replay scenario against one Hub store. Still planned: end-to-end nftables and host-reboot tests with the installer, a signed Windows installer, and desktop/mobile clients for additional platforms.
 

docs/roadmap.md

@@ -20,7 +20,7 @@
 - [x] собрать и реально запустить x64-приложение;
 - [x] редактирование и удаление серверов;
 - [x] единственный изменяемый Hub;
-- [ ] настоящие страницы Servers, Links, Sessions и Settings.
+- [x] настоящие страницы Servers, Links, Sessions и Settings.
 
 ## Этап 2 — установщик Hub/Node
 

src/ServerMonitorManager.Desktop/MainPage.xaml

@@ -61,6 +61,7 @@
                         Text="SSH monitoring · серверы ещё не добавлены" />
                 </StackPanel>
                 <CommandBar
+                    x:Name="OverviewCommandBar"
                     Grid.Column="1"
                     Background="Transparent"
                     DefaultLabelPosition="Right">
@@ -425,22 +426,11 @@
                 </Grid>
             </ScrollViewer>
 
-            <StackPanel
+            <ContentPresenter
-                x:Name="NavigationPlaceholder"
+                x:Name="NavigationPageHost"
                 Grid.Row="3"
-                Margin="0,36,0,0"
+                Margin="0,20,0,0"
-                HorizontalAlignment="Center"
+                Visibility="Collapsed" />
-                VerticalAlignment="Top"
-                MaxWidth="560"
-                Spacing="12"
-                Visibility="Collapsed">
-                <TextBlock x:Name="PlaceholderTitle" HorizontalAlignment="Center" Style="{StaticResource TitleTextBlockStyle}" />
-                <TextBlock
-                    x:Name="PlaceholderDescription"
-                    Foreground="{ThemeResource TextFillColorSecondaryBrush}"
-                    TextAlignment="Center"
-                    TextWrapping="Wrap" />
-            </StackPanel>
         </Grid>
     </NavigationView>
 </Page>

src/ServerMonitorManager.Desktop/MainPage.xaml.cs

@@ -22,6 +22,10 @@ public sealed partial class MainPage : Page
     private readonly DispatcherTimer _refreshTimer = new() { Interval = TimeSpan.FromSeconds(30) };
     private readonly SemaphoreSlim _refreshLock = new(1, 1);
     private readonly CancellationTokenSource _controlCancellation = new();
+    private ServersPage? _serversPage;
+    private LinksPage? _linksPage;
+    private SessionsPage? _sessionsPage;
+    private SettingsPage? _settingsPage;
     private bool _loaded;
     private bool _controlListening;
 
@@ -38,6 +42,62 @@ public sealed partial class MainPage : Page
     public ObservableCollection<MeshNodeViewModel> MeshNodes { get; } = [];
     public ObservableCollection<MeshLinkViewModel> MeshLinks { get; } = [];
 
+    internal bool IsControlConfigured => _control.IsConfigured;
+
+    internal void AddServerFromPage() => AddServerButton_Click(this, new RoutedEventArgs());
+
+    internal void EditServerFromPage(ServerViewModel? server)
+    {
+        ServerList.SelectedItem = server;
+        EditServerButton_Click(this, new RoutedEventArgs());
+    }
+
+    internal void DeleteServerFromPage(ServerViewModel? server)
+    {
+        ServerList.SelectedItem = server;
+        DeleteServerButton_Click(this, new RoutedEventArgs());
+    }
+
+    internal void OpenTerminalFromPage(ServerViewModel? server)
+    {
+        ServerList.SelectedItem = server;
+        TerminalButton_Click(this, new RoutedEventArgs());
+    }
+
+    internal async Task RefreshServersFromPageAsync()
+        => await RefreshAllAsync();
+
+    internal async Task RefreshLinksFromPageAsync()
+        => await RefreshMeshAsync();
+
+    internal async Task ChangeLinkFromPageAsync(
+        MeshNodeViewModel? source,
+        MeshNodeViewModel? target,
+        string protocol,
+        int port,
+        int ttlMinutes,
+        bool enable)
+    {
+        SourceNodeBox.SelectedItem = source;
+        TargetNodeBox.SelectedItem = target;
+        LinkProtocolBox.SelectedIndex = string.Equals(protocol, "udp", StringComparison.OrdinalIgnoreCase) ? 1 : 0;
+        LinkPortBox.Value = port;
+        LinkTtlBox.Value = ttlMinutes;
+        await ChangeLinkAsync(enable);
+    }
+
+    internal void ReenrollNodeFromPage(MeshNodeViewModel? source)
+    {
+        SourceNodeBox.SelectedItem = source;
+        ReenrollNodeButton_Click(this, new RoutedEventArgs());
+    }
+
+    internal void ShowSshKeyFromPage() => SshKeyButton_Click(this, new RoutedEventArgs());
+
+    internal void ConnectControlHubFromPage() => ControlHubButton_Click(this, new RoutedEventArgs());
+
+    internal void ExportDiagnosticsFromPage() => ExportDiagnosticsButton_Click(this, new RoutedEventArgs());
+
     private async void MainPage_Loaded(object sender, RoutedEventArgs e)
     {
         if (_loaded)
@@ -1083,57 +1143,62 @@ public sealed partial class MainPage : Page
     {
         if (args.IsSettingsSelected)
         {
-            ShowPlaceholder(
+            _settingsPage ??= new SettingsPage(this);
-                "Настройки",
+            ShowNavigationPage(_settingsPage);
-                "Профили серверов хранятся локально. Настройки ключей, интервалов обновления и подтверждений будут добавляться здесь.");
             return;
         }
 
         var tag = (args.SelectedItem as NavigationViewItem)?.Tag?.ToString() ?? "overview";
-        NavigationPlaceholder.Visibility = Visibility.Collapsed;
+        switch (tag)
+        {
+            case "servers":
+                _serversPage ??= new ServersPage(this);
+                ShowNavigationPage(_serversPage);
+                break;
+            case "links":
+                _linksPage ??= new LinksPage(this);
+                ShowNavigationPage(_linksPage);
+                break;
+            case "sessions":
+                _sessionsPage ??= new SessionsPage(this);
+                ShowNavigationPage(_sessionsPage);
+                break;
+            default:
+                ShowOverview();
+                break;
+        }
+    }
+
+    private void ShowOverview()
+    {
+        NavigationPageHost.Visibility = Visibility.Collapsed;
+        NavigationPageHost.Content = null;
+        OverviewCommandBar.Visibility = Visibility.Visible;
         OverviewSummary.Visibility = Visibility.Visible;
         WorkspaceScroll.Visibility = Visibility.Visible;
-        ServerWorkspace.Visibility = tag is "overview" or "servers" ? Visibility.Visible : Visibility.Collapsed;
+        ServerWorkspace.Visibility = Visibility.Visible;
-        LinkInspector.Visibility = tag is "overview" or "links" ? Visibility.Visible : Visibility.Collapsed;
+        LinkInspector.Visibility = Visibility.Visible;
-        InspectorColumn.Width = tag == "overview" && ActualWidth >= 1080
-            ? new GridLength(360)
-            : new GridLength(0);
-
-        if (tag == "links")
-        {
-            Grid.SetRow(LinkInspector, 0);
-            Grid.SetColumn(LinkInspector, 0);
-            Grid.SetColumnSpan(LinkInspector, 2);
-        }
-        else
-        {
         Grid.SetColumnSpan(LinkInspector, 1);
         if (ActualWidth >= 1080)
         {
             Grid.SetRow(LinkInspector, 0);
             Grid.SetColumn(LinkInspector, 1);
+            InspectorColumn.Width = new GridLength(360);
         }
         else
         {
             Grid.SetRow(LinkInspector, 1);
             Grid.SetColumn(LinkInspector, 0);
+            InspectorColumn.Width = new GridLength(0);
         }
     }
 
-        if (tag == "sessions")
+    private void ShowNavigationPage(Page page)
-        {
-            ShowPlaceholder(
-                "SSH-сессии",
-                "Интерактивные терминалы будут использовать отдельную identity и не получат ключ мониторинга или права Mesh Hub.");
-        }
-    }
-
-    private void ShowPlaceholder(string title, string description)
     {
+        OverviewCommandBar.Visibility = Visibility.Collapsed;
         OverviewSummary.Visibility = Visibility.Collapsed;
         WorkspaceScroll.Visibility = Visibility.Collapsed;
-        PlaceholderTitle.Text = title;
+        NavigationPageHost.Content = page;
-        PlaceholderDescription.Text = description;
+        NavigationPageHost.Visibility = Visibility.Visible;
-        NavigationPlaceholder.Visibility = Visibility.Visible;
     }
 }

src/ServerMonitorManager.Desktop/Pages/LinksPage.xaml

@@ -0,0 +1,104 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Page
+    x:Class="ServerMonitorManager_Desktop.LinksPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:ServerMonitorManager_Desktop">
+
+    <Grid RowSpacing="16">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+        <Grid ColumnSpacing="12">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+            </Grid.ColumnDefinitions>
+            <StackPanel Spacing="3">
+                <TextBlock Style="{StaticResource TitleTextBlockStyle}" Text="Связи серверов" />
+                <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="Направленные разрешения source → destination с ручным kill switch" />
+            </StackPanel>
+            <CommandBar Grid.Column="1" Background="Transparent" DefaultLabelPosition="Right">
+                <AppBarButton AutomationProperties.Name="Обновить узлы и связи" Click="RefreshButton_Click" Icon="Refresh" Label="Обновить" />
+                <AppBarButton AutomationProperties.Name="Перерегистрировать выбранный исходный Node" Click="ReenrollButton_Click" Label="Перерегистрировать">
+                    <AppBarButton.Icon><FontIcon Glyph="&#xE8D7;" /></AppBarButton.Icon>
+                </AppBarButton>
+            </CommandBar>
+        </Grid>
+
+        <Grid x:Name="LinksWorkspace" Grid.Row="1" ColumnSpacing="20" RowSpacing="20">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition x:Name="EditorColumn" Width="*" />
+                <ColumnDefinition x:Name="ListColumn" Width="0" />
+            </Grid.ColumnDefinitions>
+            <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="*" />
+            </Grid.RowDefinitions>
+
+            <Border
+                x:Name="LinkEditor"
+                Padding="18"
+                Background="{ThemeResource CardBackgroundFillColorDefaultBrush}"
+                BorderBrush="{ThemeResource CardStrokeColorDefaultBrush}"
+                BorderThickness="1"
+                CornerRadius="8">
+                <StackPanel Spacing="14">
+                    <TextBlock Style="{StaticResource SubtitleTextBlockStyle}" Text="Управление доступом" />
+                    <ComboBox x:Name="SourceNodeBox" AutomationProperties.Name="Источник связи" DisplayMemberPath="Label" Header="Источник доступа" ItemsSource="{x:Bind Nodes}" />
+                    <ComboBox x:Name="TargetNodeBox" AutomationProperties.Name="Цель связи" DisplayMemberPath="Label" Header="Целевой сервер" ItemsSource="{x:Bind Nodes}" />
+                    <Grid ColumnSpacing="10">
+                        <Grid.ColumnDefinitions><ColumnDefinition Width="*" /><ColumnDefinition Width="*" /></Grid.ColumnDefinitions>
+                        <ComboBox x:Name="ProtocolBox" Header="Протокол" SelectedIndex="0">
+                            <ComboBoxItem Content="TCP" Tag="tcp" />
+                            <ComboBoxItem Content="UDP" Tag="udp" />
+                        </ComboBox>
+                        <NumberBox x:Name="PortBox" Grid.Column="1" Header="Порт" Maximum="65535" Minimum="1" SpinButtonPlacementMode="Compact" Value="22" />
+                    </Grid>
+                    <NumberBox x:Name="TtlBox" Header="TTL, минут (0 — вручную)" Maximum="525600" Minimum="0" SpinButtonPlacementMode="Compact" Value="120" />
+                    <Grid ColumnSpacing="10">
+                        <Grid.ColumnDefinitions><ColumnDefinition Width="*" /><ColumnDefinition Width="*" /></Grid.ColumnDefinitions>
+                        <Button HorizontalAlignment="Stretch" HorizontalContentAlignment="Center" Click="ConnectButton_Click" Content="Разрешить" Style="{StaticResource AccentButtonStyle}" />
+                        <Button Grid.Column="1" HorizontalAlignment="Stretch" HorizontalContentAlignment="Center" Click="DisconnectButton_Click" Content="Отключить" />
+                    </Grid>
+                    <InfoBar IsClosable="False" IsOpen="True" Message="Обратное направление не включается автоматически. Отключение Link удаляет разрешение nftables на Hub." Severity="Informational" />
+                </StackPanel>
+            </Border>
+
+            <Grid x:Name="LinksListPanel" Grid.Row="1" RowSpacing="10">
+                <Grid.RowDefinitions><RowDefinition Height="Auto" /><RowDefinition Height="*" /></Grid.RowDefinitions>
+                <TextBlock Style="{StaticResource SubtitleTextBlockStyle}" Text="Разрешённые направления" />
+                <ListView x:Name="LinksList" Grid.Row="1" AutomationProperties.Name="Список связей" ItemsSource="{x:Bind Links}" SelectionMode="Single">
+                    <ListView.ItemTemplate>
+                        <DataTemplate x:DataType="local:MeshLinkViewModel">
+                            <Grid MinHeight="62" ColumnSpacing="12">
+                                <Grid.ColumnDefinitions><ColumnDefinition Width="*" /><ColumnDefinition Width="Auto" /></Grid.ColumnDefinitions>
+                                <StackPanel VerticalAlignment="Center">
+                                    <TextBlock FontWeight="SemiBold" Text="{x:Bind Label}" TextWrapping="Wrap" />
+                                    <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="Направленная политика доступа" />
+                                </StackPanel>
+                                <FontIcon Grid.Column="1" VerticalAlignment="Center" Glyph="&#xE72A;" />
+                            </Grid>
+                        </DataTemplate>
+                    </ListView.ItemTemplate>
+                </ListView>
+            </Grid>
+
+            <VisualStateManager.VisualStateGroups>
+                <VisualStateGroup>
+                    <VisualState x:Name="NarrowState" />
+                    <VisualState x:Name="WideState">
+                        <VisualState.StateTriggers><AdaptiveTrigger MinWindowWidth="820" /></VisualState.StateTriggers>
+                        <VisualState.Setters>
+                            <Setter Target="EditorColumn.Width" Value="360" />
+                            <Setter Target="ListColumn.Width" Value="*" />
+                            <Setter Target="LinksListPanel.(Grid.Row)" Value="0" />
+                            <Setter Target="LinksListPanel.(Grid.Column)" Value="1" />
+                        </VisualState.Setters>
+                    </VisualState>
+                </VisualStateGroup>
+            </VisualStateManager.VisualStateGroups>
+        </Grid>
+    </Grid>
+</Page>

src/ServerMonitorManager.Desktop/Pages/LinksPage.xaml.cs

@@ -0,0 +1,44 @@
+using System.Collections.ObjectModel;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+
+namespace ServerMonitorManager_Desktop;
+
+public sealed partial class LinksPage : Page
+{
+    private readonly MainPage _host;
+
+    internal LinksPage(MainPage host)
+    {
+        _host = host;
+        InitializeComponent();
+    }
+
+    public ObservableCollection<MeshNodeViewModel> Nodes => _host.MeshNodes;
+
+    public ObservableCollection<MeshLinkViewModel> Links => _host.MeshLinks;
+
+    private async void RefreshButton_Click(object sender, RoutedEventArgs e)
+        => await _host.RefreshLinksFromPageAsync();
+
+    private async void ConnectButton_Click(object sender, RoutedEventArgs e)
+        => await ChangeLinkAsync(enable: true);
+
+    private async void DisconnectButton_Click(object sender, RoutedEventArgs e)
+        => await ChangeLinkAsync(enable: false);
+
+    private void ReenrollButton_Click(object sender, RoutedEventArgs e)
+        => _host.ReenrollNodeFromPage(SourceNodeBox.SelectedItem as MeshNodeViewModel);
+
+    private async Task ChangeLinkAsync(bool enable)
+    {
+        var protocol = (ProtocolBox.SelectedItem as ComboBoxItem)?.Tag?.ToString() ?? "tcp";
+        await _host.ChangeLinkFromPageAsync(
+            SourceNodeBox.SelectedItem as MeshNodeViewModel,
+            TargetNodeBox.SelectedItem as MeshNodeViewModel,
+            protocol,
+            double.IsNaN(PortBox.Value) ? 0 : checked((int)PortBox.Value),
+            double.IsNaN(TtlBox.Value) ? 0 : checked((int)TtlBox.Value),
+            enable);
+    }
+}

src/ServerMonitorManager.Desktop/Pages/ServersPage.xaml

@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Page
+    x:Class="ServerMonitorManager_Desktop.ServersPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:ServerMonitorManager_Desktop">
+
+    <Grid RowSpacing="12">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+
+        <Grid ColumnSpacing="12">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+            </Grid.ColumnDefinitions>
+            <StackPanel Spacing="3">
+                <TextBlock Style="{StaticResource TitleTextBlockStyle}" Text="Серверы" />
+                <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="Локальные SSH-профили и текущее состояние ресурсов" />
+            </StackPanel>
+            <CommandBar Grid.Column="1" Background="Transparent" DefaultLabelPosition="Right">
+                <AppBarButton AutomationProperties.Name="Обновить все серверы" Click="RefreshButton_Click" Icon="Refresh" Label="Обновить" />
+                <AppBarButton AutomationProperties.Name="Добавить сервер" Click="AddButton_Click" Icon="Add" Label="Добавить" />
+                <AppBarButton AutomationProperties.Name="Изменить выбранный сервер" Click="EditButton_Click" Icon="Edit" Label="Изменить" />
+                <AppBarButton AutomationProperties.Name="Удалить выбранный сервер" Click="DeleteButton_Click" Icon="Delete" Label="Удалить" />
+            </CommandBar>
+        </Grid>
+
+        <InfoBar
+            x:Name="EmptyServersInfo"
+            Grid.Row="1"
+            IsClosable="False"
+            Message="Добавьте первый сервер. Пароли не сохраняются; мониторинг использует отдельный ограниченный SSH-ключ."
+            Severity="Informational"
+            Title="Список серверов пуст" />
+
+        <ListView
+            x:Name="ServerList"
+            Grid.Row="2"
+            AutomationProperties.Name="Список серверов"
+            ItemsSource="{x:Bind Servers}"
+            SelectionMode="Single">
+            <ListView.ItemTemplate>
+                <DataTemplate x:DataType="local:ServerViewModel">
+                    <Grid MinHeight="88" Padding="4" ColumnSpacing="18">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="2*" />
+                            <ColumnDefinition Width="*" />
+                            <ColumnDefinition Width="*" />
+                            <ColumnDefinition Width="Auto" />
+                        </Grid.ColumnDefinitions>
+                        <StackPanel VerticalAlignment="Center" Spacing="2">
+                            <TextBlock FontWeight="SemiBold" Text="{x:Bind Name}" />
+                            <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="{x:Bind Endpoint}" />
+                            <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="{x:Bind Status, Mode=OneWay}" />
+                        </StackPanel>
+                        <StackPanel Grid.Column="1" VerticalAlignment="Center" Spacing="6">
+                            <TextBlock Text="{x:Bind CpuText, Mode=OneWay}" />
+                            <ProgressBar Maximum="100" Value="{x:Bind CpuPercent, Mode=OneWay}" />
+                        </StackPanel>
+                        <StackPanel Grid.Column="2" VerticalAlignment="Center" Spacing="2">
+                            <TextBlock Text="{x:Bind MemoryText, Mode=OneWay}" />
+                            <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="{x:Bind DiskText, Mode=OneWay}" />
+                            <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="{x:Bind HealthText, Mode=OneWay}" />
+                        </StackPanel>
+                        <TextBlock Grid.Column="3" VerticalAlignment="Center" Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="{x:Bind LatencyText, Mode=OneWay}" />
+                    </Grid>
+                </DataTemplate>
+            </ListView.ItemTemplate>
+        </ListView>
+    </Grid>
+</Page>

src/ServerMonitorManager.Desktop/Pages/ServersPage.xaml.cs

@@ -0,0 +1,33 @@
+using System.Collections.ObjectModel;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+
+namespace ServerMonitorManager_Desktop;
+
+public sealed partial class ServersPage : Page
+{
+    private readonly MainPage _host;
+
+    internal ServersPage(MainPage host)
+    {
+        _host = host;
+        InitializeComponent();
+        Servers.CollectionChanged += (_, _) => UpdateEmptyState();
+        Loaded += (_, _) => UpdateEmptyState();
+    }
+
+    public ObservableCollection<ServerViewModel> Servers => _host.Servers;
+
+    private ServerViewModel? SelectedServer => ServerList.SelectedItem as ServerViewModel;
+
+    private void AddButton_Click(object sender, RoutedEventArgs e) => _host.AddServerFromPage();
+
+    private void EditButton_Click(object sender, RoutedEventArgs e) => _host.EditServerFromPage(SelectedServer);
+
+    private void DeleteButton_Click(object sender, RoutedEventArgs e) => _host.DeleteServerFromPage(SelectedServer);
+
+    private async void RefreshButton_Click(object sender, RoutedEventArgs e)
+        => await _host.RefreshServersFromPageAsync();
+
+    private void UpdateEmptyState() => EmptyServersInfo.IsOpen = Servers.Count == 0;
+}

src/ServerMonitorManager.Desktop/Pages/SessionsPage.xaml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Page
+    x:Class="ServerMonitorManager_Desktop.SessionsPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:ServerMonitorManager_Desktop">
+
+    <Grid RowSpacing="16">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+        <Grid ColumnSpacing="12">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+            </Grid.ColumnDefinitions>
+            <StackPanel Spacing="3">
+                <TextBlock Style="{StaticResource TitleTextBlockStyle}" Text="SSH-сессии" />
+                <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="Прямые интерактивные подключения через системный OpenSSH" />
+            </StackPanel>
+            <CommandBar Grid.Column="1" Background="Transparent" DefaultLabelPosition="Right">
+                <AppBarButton AutomationProperties.Name="Открыть SSH-терминал для выбранного сервера" Click="OpenTerminalButton_Click" Icon="OpenFile" Label="Открыть терминал" />
+            </CommandBar>
+        </Grid>
+        <InfoBar
+            Grid.Row="1"
+            IsClosable="False"
+            IsOpen="True"
+            Message="Интерактивный терминал использует ваши обычные SSH-ключи. Ограниченный ключ мониторинга, Operator-сертификат и Automation identity в терминал не передаются."
+            Severity="Informational"
+            Title="Разделение полномочий" />
+        <ListView
+            x:Name="SessionTargetsList"
+            Grid.Row="2"
+            AutomationProperties.Name="Серверы для SSH-сессии"
+            ItemsSource="{x:Bind Servers}"
+            SelectionMode="Single">
+            <ListView.ItemTemplate>
+                <DataTemplate x:DataType="local:ServerViewModel">
+                    <Grid MinHeight="68" ColumnSpacing="16">
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="2*" />
+                            <ColumnDefinition Width="*" />
+                            <ColumnDefinition Width="Auto" />
+                        </Grid.ColumnDefinitions>
+                        <StackPanel VerticalAlignment="Center">
+                            <TextBlock FontWeight="SemiBold" Text="{x:Bind Name}" />
+                            <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="{x:Bind Endpoint}" />
+                        </StackPanel>
+                        <TextBlock Grid.Column="1" VerticalAlignment="Center" Text="{x:Bind Status, Mode=OneWay}" />
+                        <FontIcon Grid.Column="2" VerticalAlignment="Center" Glyph="&#xE756;" />
+                    </Grid>
+                </DataTemplate>
+            </ListView.ItemTemplate>
+        </ListView>
+    </Grid>
+</Page>

src/ServerMonitorManager.Desktop/Pages/SessionsPage.xaml.cs

@@ -0,0 +1,21 @@
+using System.Collections.ObjectModel;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+
+namespace ServerMonitorManager_Desktop;
+
+public sealed partial class SessionsPage : Page
+{
+    private readonly MainPage _host;
+
+    internal SessionsPage(MainPage host)
+    {
+        _host = host;
+        InitializeComponent();
+    }
+
+    public ObservableCollection<ServerViewModel> Servers => _host.Servers;
+
+    private void OpenTerminalButton_Click(object sender, RoutedEventArgs e)
+        => _host.OpenTerminalFromPage(SessionTargetsList.SelectedItem as ServerViewModel);
+}

src/ServerMonitorManager.Desktop/Pages/SettingsPage.xaml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Page
+    x:Class="ServerMonitorManager_Desktop.SettingsPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+
+    <ScrollViewer>
+        <StackPanel MaxWidth="840" HorizontalAlignment="Left" Spacing="20">
+            <StackPanel Spacing="3">
+                <TextBlock Style="{StaticResource TitleTextBlockStyle}" Text="Настройки" />
+                <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="Подключения, локальные ключи и обслуживание приложения" />
+            </StackPanel>
+
+            <Grid ColumnSpacing="16" RowSpacing="16">
+                <Grid.ColumnDefinitions><ColumnDefinition Width="*" /><ColumnDefinition Width="*" /></Grid.ColumnDefinitions>
+                <Grid.RowDefinitions><RowDefinition Height="Auto" /><RowDefinition Height="Auto" /></Grid.RowDefinitions>
+
+                <Border Padding="18" Background="{ThemeResource CardBackgroundFillColorDefaultBrush}" BorderBrush="{ThemeResource CardStrokeColorDefaultBrush}" BorderThickness="1" CornerRadius="8">
+                    <StackPanel Spacing="12">
+                        <TextBlock Style="{StaticResource SubtitleTextBlockStyle}" Text="Control Hub" />
+                        <TextBlock x:Name="ControlStatusText" Foreground="{ThemeResource TextFillColorSecondaryBrush}" TextWrapping="Wrap" />
+                        <Button HorizontalAlignment="Left" Click="ConnectControlButton_Click" Content="Подключить по SMMDEV1" Style="{StaticResource AccentButtonStyle}" />
+                    </StackPanel>
+                </Border>
+
+                <Border Grid.Column="1" Padding="18" Background="{ThemeResource CardBackgroundFillColorDefaultBrush}" BorderBrush="{ThemeResource CardStrokeColorDefaultBrush}" BorderThickness="1" CornerRadius="8">
+                    <StackPanel Spacing="12">
+                        <TextBlock Style="{StaticResource SubtitleTextBlockStyle}" Text="SSH-ключ мониторинга" />
+                        <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="Ed25519 private key защищён Windows DPAPI и не передаётся Hub." TextWrapping="Wrap" />
+                        <Button HorizontalAlignment="Left" Click="ShowSshKeyButton_Click" Content="Показать публичный ключ" />
+                    </StackPanel>
+                </Border>
+
+                <Border Grid.Row="1" Padding="18" Background="{ThemeResource CardBackgroundFillColorDefaultBrush}" BorderBrush="{ThemeResource CardStrokeColorDefaultBrush}" BorderThickness="1" CornerRadius="8">
+                    <StackPanel Spacing="12">
+                        <TextBlock Style="{StaticResource SubtitleTextBlockStyle}" Text="Мониторинг" />
+                        <TextBlock Text="Интервал обновления: 30 секунд" />
+                        <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="История: до 240 точек на сервер. Старые offline-точки уплотняются Linux Agent." TextWrapping="Wrap" />
+                    </StackPanel>
+                </Border>
+
+                <Border Grid.Row="1" Grid.Column="1" Padding="18" Background="{ThemeResource CardBackgroundFillColorDefaultBrush}" BorderBrush="{ThemeResource CardStrokeColorDefaultBrush}" BorderThickness="1" CornerRadius="8">
+                    <StackPanel Spacing="12">
+                        <TextBlock Style="{StaticResource SubtitleTextBlockStyle}" Text="Диагностика" />
+                        <TextBlock Foreground="{ThemeResource TextFillColorSecondaryBrush}" Text="Экспорт не содержит адресов, пользователей, ключей, сертификатов или токенов." TextWrapping="Wrap" />
+                        <Button HorizontalAlignment="Left" Click="ExportDiagnosticsButton_Click" Content="Экспортировать JSON" />
+                    </StackPanel>
+                </Border>
+            </Grid>
+
+            <InfoBar IsClosable="False" IsOpen="True" Message="Agent, Operator, terminal и Automation используют разные identities. Изменять Links может только Operator." Severity="Informational" Title="Безопасность" />
+        </StackPanel>
+    </ScrollViewer>
+</Page>

src/ServerMonitorManager.Desktop/Pages/SettingsPage.xaml.cs

@@ -0,0 +1,33 @@
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+
+namespace ServerMonitorManager_Desktop;
+
+public sealed partial class SettingsPage : Page
+{
+    private readonly MainPage _host;
+
+    internal SettingsPage(MainPage host)
+    {
+        _host = host;
+        InitializeComponent();
+        Loaded += (_, _) => UpdateStatus();
+    }
+
+    private void ConnectControlButton_Click(object sender, RoutedEventArgs e)
+    {
+        _host.ConnectControlHubFromPage();
+        UpdateStatus();
+    }
+
+    private void ShowSshKeyButton_Click(object sender, RoutedEventArgs e)
+        => _host.ShowSshKeyFromPage();
+
+    private void ExportDiagnosticsButton_Click(object sender, RoutedEventArgs e)
+        => _host.ExportDiagnosticsFromPage();
+
+    private void UpdateStatus()
+        => ControlStatusText.Text = _host.IsControlConfigured
+            ? "Operator-сертификат установлен и защищён Windows DPAPI."
+            : "Control Hub ещё не подключён. Создайте одноразовый device code на Hub.";
+}

src/ServerMonitorManager.Desktop/ServerMonitorManager.Desktop.csproj

@@ -73,7 +73,8 @@
   <PropertyGroup>
     <PublishReadyToRun Condition="'$(Configuration)' == 'Debug'">False</PublishReadyToRun>
     <PublishReadyToRun Condition="'$(Configuration)' != 'Debug'">True</PublishReadyToRun>
-    <PublishTrimmed Condition="'$(Configuration)' == 'Debug'">False</PublishTrimmed>
+    <!-- WinUI pages are activated through generated XAML metadata. Keep trimming disabled
-    <PublishTrimmed Condition="'$(Configuration)' != 'Debug'">True</PublishTrimmed>
+         until every desktop serialization and activation path has an explicit trim contract. -->
+    <PublishTrimmed>False</PublishTrimmed>
   </PropertyGroup>
 </Project>