feat: 重构项目结构，添加 WPF 应用

- 将核心功能提取到 WCTDataMiner.Core 类库
- 添加 WCTDataMiner.Wpf 桌面应用
- 支持数据解析、导出、统计等功能

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/WCTDataMiner.Wpf/ViewModels/MainViewModel.cs

@@ -0,0 +1,54 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace WCTDataMiner.Wpf.ViewModels;
+
+/// <summary>
+/// 主窗口 ViewModel - 导航控制
+/// </summary>
+public partial class MainViewModel : ObservableObject
+{
+    [ObservableProperty]
+    private ObservableObject _currentView = null!;
+
+    [ObservableProperty]
+    private string? _selectedTxPanel;
+
+    [ObservableProperty]
+    private string? _selectedTxHardware;
+
+    [ObservableProperty]
+    private string? _selectedTxSoftware;
+
+    [ObservableProperty]
+    private string? _selectedRxType;
+
+    // 筛选选项列表
+    public List<string> TxPanels { get; } = new() { "全部", "singleMold", "dualMold" };
+    public List<string> TxHardwares { get; } = new() { "全部", "v1.0", "v2.0" };
+    public List<string> TxSoftwares { get; } = new() { "全部", "hex2_1", "hex2_2" };
+    public List<string> RxTypes { get; } = new() { "全部", "iPhone15", "iPhone16", "Android" };
+
+    public MainViewModel()
+    {
+        _currentView = new ScenarioListViewModel();
+    }
+
+    [RelayCommand]
+    private void NavigateToScenarios()
+    {
+        CurrentView = new ScenarioListViewModel();
+    }
+
+    [RelayCommand]
+    private void NavigateToPlossChart(int scenarioId)
+    {
+        CurrentView = new PlossChartViewModel { ScenarioId = scenarioId };
+    }
+
+    [RelayCommand]
+    private void NavigateToQfodChart(int scenarioId)
+    {
+        CurrentView = new QfodChartViewModel { ScenarioId = scenarioId };
+    }
+}