feat(03-07): create StorageView XAML, DI registration, and MainWindow wiring

- StorageView.xaml: DataGrid with IndentLevel-based name indentation
- StorageView.xaml.cs: code-behind wiring DataContext to StorageViewModel
- IndentConverter.cs: IndentConverter, BytesConverter, InverseBoolConverter
- App.xaml: register converters and RightAlignStyle as Application.Resources
- App.xaml.cs: register IStorageService, StorageCsvExportService, StorageHtmlExportService, StorageViewModel, StorageView
- MainWindow.xaml: add x:Name=StorageTabItem to Storage TabItem
- MainWindow.xaml.cs: wire StorageTabItem.Content from DI

SharepointToolbox/App.xaml

@@ -1,8 +1,15 @@
 <Application x:Class="SharepointToolbox.App"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             xmlns:local="clr-namespace:SharepointToolbox">
+             xmlns:local="clr-namespace:SharepointToolbox"
+             xmlns:conv="clr-namespace:SharepointToolbox.Views.Converters">
     <Application.Resources>
         <BooleanToVisibilityConverter x:Key="BoolToVisibilityConverter" />
+        <conv:IndentConverter      x:Key="IndentConverter" />
+        <conv:BytesConverter       x:Key="BytesConverter" />
+        <conv:InverseBoolConverter x:Key="InverseBoolConverter" />
+        <Style x:Key="RightAlignStyle" TargetType="TextBlock">
+            <Setter Property="HorizontalAlignment" Value="Right" />
+        </Style>
     </Application.Resources>
 </Application>

SharepointToolbox/App.xaml.cs

@@ -88,6 +88,13 @@ public partial class App : Application
         services.AddTransient<ProfileManagementDialog>();
         services.AddTransient<SettingsView>();
 
+        // Phase 3: Storage
+        services.AddTransient<IStorageService, StorageService>();
+        services.AddTransient<StorageCsvExportService>();
+        services.AddTransient<StorageHtmlExportService>();
+        services.AddTransient<StorageViewModel>();
+        services.AddTransient<StorageView>();
+
         // Phase 2: Permissions
         services.AddTransient<IPermissionsService, PermissionsService>();
         services.AddTransient<ISiteListService, SiteListService>();

SharepointToolbox/MainWindow.xaml

@@ -44,8 +44,8 @@
       <TabItem x:Name="PermissionsTabItem"
                Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[tab.permissions]}">
       </TabItem>
-      <TabItem Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[tab.storage]}">
-        <controls:FeatureTabBase />
+      <TabItem x:Name="StorageTabItem"
+               Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[tab.storage]}">
       </TabItem>
       <TabItem Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[tab.search]}">
         <controls:FeatureTabBase />

SharepointToolbox/MainWindow.xaml.cs

@@ -23,6 +23,9 @@ public partial class MainWindow : Window
         // Replace Permissions tab placeholder with the DI-resolved PermissionsView
         PermissionsTabItem.Content = serviceProvider.GetRequiredService<PermissionsView>();
 
+        // Replace Storage tab placeholder with the DI-resolved StorageView
+        StorageTabItem.Content = serviceProvider.GetRequiredService<StorageView>();
+
         // Replace Settings tab placeholder with the DI-resolved SettingsView
         SettingsTabItem.Content = serviceProvider.GetRequiredService<SettingsView>();
 

SharepointToolbox/Views/Converters/IndentConverter.cs

@@ -0,0 +1,47 @@
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace SharepointToolbox.Views.Converters;
+
+/// <summary>Converts IndentLevel (int) to WPF Thickness for DataGrid indent.</summary>
+[ValueConversion(typeof(int), typeof(Thickness))]
+public class IndentConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        int level = value is int i ? i : 0;
+        return new Thickness(level * 16, 0, 0, 0);
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        => throw new NotImplementedException();
+}
+
+/// <summary>Converts byte count (long) to human-readable size string.</summary>
+[ValueConversion(typeof(long), typeof(string))]
+public class BytesConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        long bytes = value is long l ? l : 0L;
+        if (bytes >= 1_073_741_824L) return $"{bytes / 1_073_741_824.0:F2} GB";
+        if (bytes >= 1_048_576L)     return $"{bytes / 1_048_576.0:F2} MB";
+        if (bytes >= 1024L)          return $"{bytes / 1024.0:F2} KB";
+        return $"{bytes} B";
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        => throw new NotImplementedException();
+}
+
+/// <summary>Inverts a bool binding — used to disable controls while an operation is running.</summary>
+[ValueConversion(typeof(bool), typeof(bool))]
+public class InverseBoolConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        => value is bool b && !b;
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        => value is bool b && !b;
+}

SharepointToolbox/Views/Tabs/StorageView.xaml

@@ -0,0 +1,104 @@
+<UserControl x:Class="SharepointToolbox.Views.Tabs.StorageView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:loc="clr-namespace:SharepointToolbox.Localization"
+             xmlns:conv="clr-namespace:SharepointToolbox.Views.Converters">
+    <DockPanel LastChildFill="True">
+        <!-- Options panel -->
+        <ScrollViewer DockPanel.Dock="Left" Width="240" VerticalScrollBarVisibility="Auto"
+                      Margin="8,8,4,8">
+            <StackPanel>
+                <!-- Site URL -->
+                <Label Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[lbl.site.url]}" />
+                <TextBox Text="{Binding SiteUrl, UpdateSourceTrigger=PropertyChanged}"
+                         IsEnabled="{Binding IsRunning, Converter={StaticResource InverseBoolConverter}}"
+                         Height="26" Margin="0,0,0,8"
+                         ToolTip="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[ph.site.url]}" />
+
+                <!-- Scan options group -->
+                <GroupBox Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[grp.scan.opts]}"
+                          Margin="0,0,0,8">
+                    <StackPanel Margin="4">
+                        <CheckBox Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[chk.per.lib]}"
+                                  IsChecked="{Binding PerLibrary}" Margin="0,2" />
+                        <CheckBox Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[chk.subsites]}"
+                                  IsChecked="{Binding IncludeSubsites}" Margin="0,2" />
+                        <StackPanel Orientation="Horizontal" Margin="0,4,0,0">
+                            <Label Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[lbl.folder.depth]}"
+                                   VerticalAlignment="Center" Padding="0,0,4,0" />
+                            <TextBox Text="{Binding FolderDepth, UpdateSourceTrigger=PropertyChanged}"
+                                     Width="40" Height="22" VerticalAlignment="Center"
+                                     IsEnabled="{Binding IsMaxDepth, Converter={StaticResource InverseBoolConverter}}" />
+                        </StackPanel>
+                        <CheckBox Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[chk.max.depth]}"
+                                  IsChecked="{Binding IsMaxDepth}" Margin="0,2" />
+                        <TextBlock Text="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.note]}"
+                                   TextWrapping="Wrap" FontSize="11" Foreground="#888"
+                                   Margin="0,6,0,0" />
+                    </StackPanel>
+                </GroupBox>
+
+                <!-- Action buttons -->
+                <Button Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[btn.gen.storage]}"
+                        Command="{Binding RunCommand}"
+                        Height="28" Margin="0,0,0,4" />
+                <Button Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[btn.cancel]}"
+                        Command="{Binding CancelCommand}"
+                        Height="28" Margin="0,0,0,8" />
+
+                <!-- Export group -->
+                <GroupBox Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[grp.export.fmt]}"
+                          Margin="0,0,0,8">
+                    <StackPanel Margin="4">
+                        <Button Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.rad.csv]}"
+                                Command="{Binding ExportCsvCommand}"
+                                Height="26" Margin="0,2" />
+                        <Button Content="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.rad.html]}"
+                                Command="{Binding ExportHtmlCommand}"
+                                Height="26" Margin="0,2" />
+                    </StackPanel>
+                </GroupBox>
+
+                <!-- Status -->
+                <TextBlock Text="{Binding StatusMessage}" TextWrapping="Wrap"
+                           FontSize="11" Foreground="#555" Margin="0,4" />
+            </StackPanel>
+        </ScrollViewer>
+
+        <!-- Results DataGrid -->
+        <DataGrid x:Name="ResultsGrid"
+                  ItemsSource="{Binding Results}"
+                  IsReadOnly="True"
+                  AutoGenerateColumns="False"
+                  VirtualizingPanel.IsVirtualizing="True"
+                  VirtualizingPanel.VirtualizationMode="Recycling"
+                  Margin="4,8,8,8">
+            <DataGrid.Columns>
+                <DataGridTemplateColumn Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.col.library]}"
+                                        Width="*" MinWidth="160">
+                    <DataGridTemplateColumn.CellTemplate>
+                        <DataTemplate>
+                            <TextBlock Text="{Binding Name}"
+                                       Margin="{Binding IndentLevel, Converter={StaticResource IndentConverter}}"
+                                       VerticalAlignment="Center" />
+                        </DataTemplate>
+                    </DataGridTemplateColumn.CellTemplate>
+                </DataGridTemplateColumn>
+                <DataGridTextColumn Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.col.site]}"
+                                    Binding="{Binding SiteTitle}" Width="140" />
+                <DataGridTextColumn Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.col.files]}"
+                                    Binding="{Binding TotalFileCount, StringFormat=N0}"
+                                    Width="70" ElementStyle="{StaticResource RightAlignStyle}" />
+                <DataGridTextColumn Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.col.size]}"
+                                    Binding="{Binding TotalSizeBytes, Converter={StaticResource BytesConverter}}"
+                                    Width="100" ElementStyle="{StaticResource RightAlignStyle}" />
+                <DataGridTextColumn Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.col.versions]}"
+                                    Binding="{Binding VersionSizeBytes, Converter={StaticResource BytesConverter}}"
+                                    Width="110" ElementStyle="{StaticResource RightAlignStyle}" />
+                <DataGridTextColumn Header="{Binding Source={x:Static loc:TranslationSource.Instance}, Path=[stor.col.lastmod]}"
+                                    Binding="{Binding LastModified, StringFormat=yyyy-MM-dd}"
+                                    Width="110" />
+            </DataGrid.Columns>
+        </DataGrid>
+    </DockPanel>
+</UserControl>

SharepointToolbox/Views/Tabs/StorageView.xaml.cs

@@ -0,0 +1,12 @@
+using System.Windows.Controls;
+
+namespace SharepointToolbox.Views.Tabs;
+
+public partial class StorageView : UserControl
+{
+    public StorageView(ViewModels.Tabs.StorageViewModel viewModel)
+    {
+        InitializeComponent();
+        DataContext = viewModel;
+    }
+}