优化 UI 组件和提示信息格式

在 `MarkdownWpfRenderer.cs` 中，修改 `RenderHtmlBlock` 方法以支持 `<think>` 标签，返回包含进度条的 `Expander` 控件或直接返回文本块。更新 `PromptUtil.cs` 中的 `UsePrompt` 方法，增加当前时间和用户提问的 Excel 列信息格式。

在 `App.xaml` 中移除 `ThemeDictionary` 的 `ColorMode` 属性，简化主题定义。重构 `AiMessageControll.xaml` 的 UI，使用 `DockPanel` 和 `ButtonGroup`，并增加分隔线。

在 `ImportExcelPage.xaml` 中添加上下文菜单，调整 `TabControl` 和 `DataGrid` 属性以支持虚拟化，重构参数配置 UI，使用 `hc:Card` 和 `DockPanel` 结构。

在 `ImportExcelPage.xaml.cs` 中添加按钮点击事件处理程序以切换配置显示状态。在 `ImportViewModel.cs` 中更新 AI 消息处理逻辑，使用新提示格式，并添加 `_showConfig` 属性及其文档注释。

src/EleCho.MdViewer/src/EleCho.MdViewer/Controls/CodeSpanControl.xaml

@@ -0,0 +1,32 @@
+<UserControl x:Class="EleCho.MdViewer.Controls.CodeSpanControl"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:EleCho.MdViewer.Controls"
+             mc:Ignorable="d" 
+             d:DesignHeight="30" d:DesignWidth="160">
+    <StackPanel Orientation="Horizontal" Margin="5">
+        <local:SelectableTextBlock Text="{Binding Text}" VerticalAlignment="Center"/>
+        <Button x:Name="Copy" 
+                Content="复制" 
+                Click="Copy_Click"  
+                VerticalAlignment="Top"
+                HorizontalAlignment="Right"
+                Padding="4,0" 
+                Opacity="1"
+                Height="20"
+                Background="#AAFFFFFF"
+                BorderThickness="1">
+            <Button.Style>
+                <Style TargetType="Button">
+                    <Style.Triggers>
+                        <DataTrigger Binding="{Binding IsMouseOver, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}}" Value="True">
+                            <Setter Property="Opacity" Value="0.8"/>
+                        </DataTrigger>
+                    </Style.Triggers>
+                </Style>
+            </Button.Style>
+        </Button>
+    </StackPanel>
+</UserControl>

src/EleCho.MdViewer/src/EleCho.MdViewer/Controls/CodeSpanControl.xaml.cs

@@ -0,0 +1,51 @@
+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 EleCho.MdViewer.Controls
+{
+    /// <summary>
+    /// CodeSpanControl.xaml 的交互逻辑
+    /// </summary>
+    public partial class CodeSpanControl : UserControl
+    {
+        /// <summary>
+        /// Text
+        /// </summary>
+        public string Text
+        {
+            get => (string)GetValue(TextProperty);
+
+            set => SetValue(TextProperty, value);
+        }
+
+        /// <summary>
+        /// Text property
+        /// </summary>
+        public static readonly DependencyProperty TextProperty =
+      DependencyProperty.Register("Text", typeof(string), typeof(CodeSpanControl), new PropertyMetadata(string.Empty));
+
+
+        public CodeSpanControl()
+        {
+            InitializeComponent();
+            this.DataContext = this;
+        }
+
+        private void Copy_Click(object sender, RoutedEventArgs e)
+        {
+
+        }
+    }
+}

src/EleCho.MdViewer/src/EleCho.MdViewer/Markdown/MarkdownWpfRenderer.cs

@@ -428,7 +428,8 @@ public class MarkdownWpfRenderer
             CornerRadius = new CornerRadius(8),
             Margin = new Thickness(0, 0, 0, NormalSize)
         };
-
+        if (!fencedCodeBlock.Info.StartsWith("Excel", StringComparison.CurrentCultureIgnoreCase))
+        {
             var codeContentElement = new SelectableTextBlock()
             {
                 TextWrapping = TextWrapping.Wrap,
@@ -458,6 +459,16 @@ public class MarkdownWpfRenderer
             WpfSyntaxHighLighting writer = new(styleDict);
             writer.FormatTextBlock(fencedCodeBlock.Lines.ToString(), language, codeContentElement);
 
+        }
+        else
+        {
+            var codeSpanControl = new CodeSpanControl();
+            codeSpanControl.SetResourceReference(Control.ForegroundProperty, MarkdownResKey.MainForeground);
+            codeSpanControl.SetResourceReference(Control.BackgroundProperty, MarkdownResKey.CodeBlockBackground);
+            codeSpanControl.Text = fencedCodeBlock.Lines.ToString();
+            codeElement.Child = codeSpanControl;
+        }
+
 
             return codeElement;
     }
@@ -566,7 +577,7 @@ public class MarkdownWpfRenderer
         SelectableTextBlock paragraphElement = new SelectableTextBlock()
         {
             TextWrapping = TextWrapping.Wrap,
-            Margin = new Thickness(0, 0, 0, NormalSize),
+            Margin = new Thickness(0, NormalSize, 0, NormalSize),
 
             FontSize = NormalSize,
         };

src/ExcelHelper/AI/PromptUtil.cs

@@ -48,7 +48,9 @@ class PromptUtil
 4. 一定要保证文档格式的正确性，避免出现无法显示的内容。
 
 5. 尽量使用比较简短与易懂的公式来回答用户的问题，避免用户无法理解。
-
+6. 当你输出公式时，请使用以下格式进行输出：
+    ```Excel_{{列}}
+    =SUM(A1:A100)
 
 ";
     }

src/ExcelHelper/ExcelHelper.csproj

@@ -23,6 +23,12 @@
     <ImportWindowsDesktopTargets>true</ImportWindowsDesktopTargets>
   <OptimizationPreference>Size</OptimizationPreference>
   </PropertyGroup>
+  <ItemGroup>
+    <Compile Remove="Web\**" />
+    <EmbeddedResource Remove="Web\**" />
+    <None Remove="Web\**" />
+    <Page Remove="Web\**" />
+  </ItemGroup>
   <ItemGroup>
     <None Remove="HL\SQL.xshd" />
   </ItemGroup>
@@ -69,9 +75,6 @@
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.0-rc.2.24473.5" />
     <PackageReference Include="TinyPinyin" Version="1.1.0" />
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Web\" />
-  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\EleCho.MdViewer\src\EleCho.MdViewer\EleCho.MdViewer.csproj" />
   </ItemGroup>

src/ExcelHelper/Utils/Excel2Prompt.cs

@@ -14,7 +14,7 @@ public class Excel2Prompt
     /// <param name="columns"></param>
     /// <param name="startCell">A</param>
     /// <returns></returns>
-    public static string ConverterToPrompt(IEnumerable<dynamic> excelData, Dictionary<string,string> columns, string startCell)
+    public static string ConverterToPrompt(IEnumerable<dynamic> excelData, Dictionary<string, string> columns, string startCell,string sheetName)
     {
         /*
         示例:
@@ -37,7 +37,7 @@ public class Excel2Prompt
                 - Missing values: 7007
         */
         var prompts = new List<string>();
-        prompts.Add("This Excel file contains the following columns:");
+        prompts.Add($"This Excel file contains the following columns:");
         var dataList = excelData.ToList();
 
         // 解析 startCell，获取起始列的索引
@@ -70,6 +70,8 @@ public class Excel2Prompt
                          $"    - Sample values: ['{string.Join("', '", sampleValues)}']";
             prompts.Add(prompt);
         }
+        prompts.Add($"Sheet Name: {sheetName}");
+        prompts.Add($"Max Row: {excelData.Count()}");
 
         return string.Join(Environment.NewLine + Environment.NewLine, prompts);
     }

src/ExcelHelper/Views/ViewModels/ImportViewModel.cs

@@ -179,7 +179,7 @@ public partial class ImportViewModel : ObservableRecipient, IViewModel
 
             MaxRow = ExcelData.Count();
 
-            ExcelPromptString = Excel2Prompt.ConverterToPrompt(ExcelData, _columnMappings, StartCell);
+            ExcelPromptString = Excel2Prompt.ConverterToPrompt(excelData, _columnMappings, StartCell,currentSheetName);
         }
         catch (Exception ex)
         {
@@ -347,10 +347,16 @@ public partial class ImportViewModel : ObservableRecipient, IViewModel
     }
 
 
-    private const string TEST_AI_CONTENT = @"
+    private static   string TEST_AI_CONTENT = @"
-<think>
+```Excel_H
-1231231
+1231231122222222222222222222
-</think>
+123
+1
+23
+12
+3
+12
+```
 ";
     #region Props
     [ObservableProperty]