Add Git overlay, operation tools, and virtualized preview so large folders stay responsive.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/Explorer.App/OperationProfilesWindow.xaml

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+<Window x:Class="Explorer.App.OperationProfilesWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Operation profiles"
+        Icon="pack://application:,,,/Assets/explorer-workbench.ico"
+        Height="740" Width="980"
+        MinHeight="560" MinWidth="780"
+        WindowStartupLocation="CenterOwner"
+        Background="{DynamicResource Bg}" Foreground="{DynamicResource Fg}">
+  <DockPanel Margin="16">
+    <DockPanel DockPanel.Dock="Bottom" Margin="0,12,0,0">
+      <Button DockPanel.Dock="Right" Content="Close" MinWidth="88" Height="32" IsCancel="True" Margin="8,0,0,0"/>
+      <Button DockPanel.Dock="Right" Content="Queue" MinWidth="88" Height="32" IsDefault="True"
+              Command="{Binding QueueCommand}" IsEnabled="{Binding CanQueue}" Margin="8,0,0,0"/>
+      <Button DockPanel.Dock="Right" Content="Preview" MinWidth="88" Height="32"
+              Command="{Binding AnalyzeCommand}" Margin="8,0,0,0"/>
+      <TextBlock Text="{Binding Status}" VerticalAlignment="Center" Foreground="{DynamicResource FgMuted}" TextWrapping="Wrap"/>
+    </DockPanel>
+    <Grid>
+      <Grid.ColumnDefinitions>
+        <ColumnDefinition Width="220"/>
+        <ColumnDefinition Width="12"/>
+        <ColumnDefinition Width="320"/>
+        <ColumnDefinition Width="12"/>
+        <ColumnDefinition Width="*"/>
+      </Grid.ColumnDefinitions>
+      <DockPanel>
+        <TextBlock DockPanel.Dock="Bottom" TextWrapping="Wrap" FontSize="12" Margin="0,8,0,0"
+                   Foreground="{DynamicResource FgMuted}"
+                   Text="Drop files onto a profile to preview with those items."/>
+        <StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal" Margin="0,8,0,0">
+          <Button Content="New" MinWidth="56" Height="28" Command="{Binding NewProfileCommand}" Margin="0,0,8,0"/>
+          <Button Content="Duplicate" MinWidth="72" Height="28" Command="{Binding DuplicateCommand}" Margin="0,0,8,0"/>
+          <Button Content="Delete" MinWidth="56" Height="28" Command="{Binding DeleteCommand}"/>
+        </StackPanel>
+        <ListBox ItemsSource="{Binding Profiles}" SelectedItem="{Binding Selected}"
+                 DisplayMemberPath="Name"
+                 AllowDrop="True"
+                 DragOver="OnProfileDragOver"
+                 Drop="OnProfileDrop"
+                 Background="{DynamicResource Panel}" Foreground="{DynamicResource Fg}"/>
+      </DockPanel>
+      <ScrollViewer Grid.Column="2" VerticalScrollBarVisibility="Auto">
+        <StackPanel>
+          <TextBlock Text="Name" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,4"/>
+          <TextBox Text="{Binding Name, UpdateSourceTrigger=PropertyChanged}" Margin="0,0,0,8"/>
+          <TextBlock Text="Source" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,4"/>
+          <DockPanel Margin="0,0,0,8">
+            <Button DockPanel.Dock="Right" Content="Browse…" MinWidth="80" Height="28" Click="OnBrowseSource" Margin="8,0,0,0"/>
+            <TextBox Text="{Binding SourcePath, UpdateSourceTrigger=PropertyChanged}"/>
+          </DockPanel>
+          <TextBlock Text="Destination" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,4"/>
+          <DockPanel Margin="0,0,0,8">
+            <Button DockPanel.Dock="Right" Content="Browse…" MinWidth="80" Height="28" Click="OnBrowseDest" Margin="8,0,0,0"/>
+            <TextBox Text="{Binding DestPath, UpdateSourceTrigger=PropertyChanged}"/>
+          </DockPanel>
+          <CheckBox Content="Require a clean Git working tree" IsChecked="{Binding RequireGitClean}" Margin="0,0,0,8"/>
+          <CheckBox Content="Rename" IsChecked="{Binding DoRename}" Margin="0,0,0,8"/>
+          <TextBlock Text="Prefix / suffix" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,4"
+                     IsEnabled="{Binding DoRename}"/>
+          <Grid Margin="0,0,0,8" IsEnabled="{Binding DoRename}">
+            <Grid.ColumnDefinitions>
+              <ColumnDefinition Width="*"/>
+              <ColumnDefinition Width="8"/>
+              <ColumnDefinition Width="*"/>
+            </Grid.ColumnDefinitions>
+            <TextBox Text="{Binding RenamePrefix, UpdateSourceTrigger=PropertyChanged}"/>
+            <TextBox Grid.Column="2" Text="{Binding RenameSuffix, UpdateSourceTrigger=PropertyChanged}"/>
+          </Grid>
+          <TextBlock Text="Search / replace" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,4"
+                     IsEnabled="{Binding DoRename}"/>
+          <Grid Margin="0,0,0,8" IsEnabled="{Binding DoRename}">
+            <Grid.ColumnDefinitions>
+              <ColumnDefinition Width="*"/>
+              <ColumnDefinition Width="8"/>
+              <ColumnDefinition Width="*"/>
+            </Grid.ColumnDefinitions>
+            <TextBox Text="{Binding RenameSearch, UpdateSourceTrigger=PropertyChanged}"/>
+            <TextBox Grid.Column="2" Text="{Binding RenameReplace, UpdateSourceTrigger=PropertyChanged}"/>
+          </Grid>
+          <CheckBox Content="Compress" IsChecked="{Binding DoCompress}" Margin="0,0,0,8"/>
+          <ComboBox ItemsSource="{Binding Formats}" DisplayMemberPath="Label" SelectedValuePath="Format"
+                    SelectedValue="{Binding ArchiveFormat}" Margin="0,0,0,8"
+                    IsEnabled="{Binding CompressOptionsEnabled}"/>
+          <CheckBox Content="Copy to destination" IsChecked="{Binding DoCopy}" Margin="0,0,0,8"/>
+          <CheckBox Content="Run when the destination volume is connected"
+                    IsChecked="{Binding AutoRun}" IsEnabled="{Binding AutoRunEnabled}" Margin="0,0,0,8"/>
+          <TextBlock TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" FontSize="12" Margin="0,0,0,12"
+                     Text="Auto-run is Copy only — not Rename or Compress. Drive letters can change; the volume identity is stored."/>
+          <TextBlock Text="Exclude names (one glob per line)" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,4"/>
+          <TextBox Text="{Binding Excludes, UpdateSourceTrigger=PropertyChanged}" AcceptsReturn="True"
+                   Height="90" VerticalScrollBarVisibility="Auto" TextWrapping="Wrap"/>
+          <Button Content="Save profile" Margin="0,12,0,0" Height="28" Command="{Binding SaveCommand}"/>
+        </StackPanel>
+      </ScrollViewer>
+      <ListView Grid.Column="4" ItemsSource="{Binding Rows}"
+                Background="{DynamicResource Panel}" Foreground="{DynamicResource Fg}">
+        <ListView.View>
+          <GridView>
+            <GridViewColumn Header="Action" Width="90" DisplayMemberBinding="{Binding Action}"/>
+            <GridViewColumn Header="Path" Width="240" DisplayMemberBinding="{Binding Path}"/>
+            <GridViewColumn Header="Detail" Width="140" DisplayMemberBinding="{Binding Detail}"/>
+          </GridView>
+        </ListView.View>
+      </ListView>
+    </Grid>
+  </DockPanel>
+</Window>