添加的登录界面，使用固定账号和密码测试登录逻辑成功

WorkStation.Client/Views/Dialogs/LoginView.xaml

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+<UserControl
+    x:Class="WorkStation.Client.Views.Dialogs.LoginView"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:local="clr-namespace:WorkStation.Client.Views.Dialogs"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    Width="800"
+    Height="450"
+    mc:Ignorable="d">
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="1.5*" />
+            <ColumnDefinition Width="1*" />
+        </Grid.ColumnDefinitions>
+        <Image
+            Grid.Column="0"
+            Margin="10"
+            Source="/Images/LoginImage.png" />
+        <StackPanel
+            Grid.Column="1"
+            HorizontalAlignment="Center"
+            VerticalAlignment="Center">
+            <TextBlock
+                HorizontalAlignment="Center"
+                FontSize="50"
+                Text="登录" />
+            <TextBlock
+                FontSize="20"
+                Text="账号" />
+            <TextBox
+                Width="200"
+                Margin="5"
+                Text="{Binding Account}" />
+            <TextBlock
+                FontSize="20"
+                Text="密码" />
+            <TextBox
+                Width="200"
+                Margin="5"
+                Text="{Binding Password}" />
+            <Button
+                Command="{Binding LoginCommand}"
+                Content="登录" />
+        </StackPanel>
+    </Grid>
+</UserControl>

WorkStation.Client/Views/Dialogs/LoginView.xaml.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace WorkStation.Client.Views.Dialogs
+{
+    /// <summary>
+    /// Interaction logic for LoginView.xaml
+    /// </summary>
+    public partial class LoginView : UserControl
+    {
+        public LoginView()
+        {
+            InitializeComponent();
+        }
+    }
+}

WorkStation.Client/Views/MainWindow.xaml

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+<Window
+    x:Class="WorkStation.Client.Views.MainWindow"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:prism="http://prismlibrary.com/"
+    Title="{Binding Title}"
+    Width="525"
+    Height="350"
+    prism:ViewModelLocator.AutoWireViewModel="True">
+    <Grid>
+        <Button />
+    </Grid>
+</Window>

WorkStation.Client/Views/MainWindow.xaml.cs

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+using System.Windows;
+
+namespace WorkStation.Client.Views
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+    }
+}