WIP: GUI

静态分析没有问题了。但是一尝试扫描文件夹就炸。怀疑是权限问题，但不确定。

src/GUI/Views/ScanProgressView.axaml

@@ -0,0 +1,34 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:GUI.ViewModels"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             x:Class="GUI.Views.ScanProgressView"
+             x:DataType="vm:ScanProgressViewModel">
+    <Design.DataContext>
+        <vm:ScanProgressViewModel/>
+    </Design.DataContext>
+
+    <Border Padding="16" Background="{DynamicResource SystemBaseLowColorBrush}" CornerRadius="8"
+            MaxWidth="400">
+        <StackPanel Spacing="8">
+            <TextBlock Text="{Binding StatusText}" FontWeight="SemiBold" FontSize="13" TextWrapping="Wrap"/>
+            <ProgressBar Minimum="0" Maximum="100" Value="{Binding Progress}" Height="8"/>
+            <TextBlock FontSize="11" Foreground="{DynamicResource SystemBaseMediumColorBrush}">
+                <Run Text="已处理: "/>
+                <Run Text="{Binding ProcessedFiles}"/>
+                <Run Text=" / "/>
+                <Run Text="{Binding TotalFiles}"/>
+            </TextBlock>
+            <StackPanel Orientation="Horizontal" Spacing="12">
+                <TextBlock Text="{Binding AddedFiles, StringFormat='新增: {0}'}" FontSize="11"
+                           Foreground="{DynamicResource SystemBaseMediumColorBrush}"/>
+                <TextBlock Text="{Binding SkippedFiles, StringFormat='跳过: {0}'}" FontSize="11"
+                           Foreground="{DynamicResource SystemBaseMediumColorBrush}"/>
+            </StackPanel>
+            <TextBlock Text="{Binding CurrentFile}" FontSize="11"
+                       TextTrimming="CharacterEllipsis" MaxWidth="368"/>
+        </StackPanel>
+    </Border>
+</UserControl>