chore: 关于按钮移至帮助窗口内，关闭按钮左侧

src/UI/WPF/Views/HelpDialog.xaml

@@ -139,6 +139,11 @@ NavisworksTransport 帮助对话框 - 采用与主界面一致的Navisworks 2026
                 Padding="15,10">
             <StackPanel Orientation="Horizontal" 
                         HorizontalAlignment="Right">
+                <Button Content="关于" 
+                        Click="AboutButton_Click" 
+                        Style="{StaticResource SecondaryButtonStyle}"
+                        Margin="0,0,8,0"
+                        ToolTip="查看插件版本信息和开发者信息"/>
                 <Button Content="关闭" 
                         Click="CloseButton_Click" 
                         Style="{StaticResource ActionButtonStyle}"/>

src/UI/WPF/Views/HelpDialog.xaml.cs

@@ -1,4 +1,5 @@
 using System.Windows;
+using NavisworksTransport.Utils;
 
 namespace NavisworksTransport.UI.WPF.Views
 {
@@ -13,6 +14,14 @@ namespace NavisworksTransport.UI.WPF.Views
             InitializeComponent();
         }
 
+        /// <summary>
+        /// 关于按钮点击事件
+        /// </summary>
+        private void AboutButton_Click(object sender, RoutedEventArgs e)
+        {
+            DialogHelper.ShowDialog(new AboutDialog());
+        }
+
         /// <summary>
         /// 关闭按钮点击事件
         /// </summary>

src/UI/WPF/Views/LogisticsControlPanel.xaml

@@ -197,10 +197,6 @@ NavisworksTransport 主控制面板 - 采用与其他视图一致的Navisworks 2
                             Click="HelpButton_Click" 
                             Style="{StaticResource SecondaryButtonStyle}"
                             ToolTip="查看插件使用说明和操作指南"/>
-                    <Button Content="关于" 
-                            Click="AboutButton_Click" 
-                            Style="{StaticResource SecondaryButtonStyle}"
-                            ToolTip="查看插件版本信息和开发者信息"/>
                 </StackPanel>
             </Grid>
         </Border>