第 0 阶段：教材项目 2 任务 1 在网页中原样运行

- runtime：仿真 WinForms 子集（Form、Button、Label、TextBox、ComboBox、
  GroupBox、Timer、MessageBox、界面线程消息循环、跨线程检查）、
  教材设备类库（DeviceCtrlHelper、LED 控件）、运行器（常驻编译服务 + 运行模式）
- server：Bun + Hono，WebSocket 会话，每次运行一个进程，消息转发
- web：Vue + Naive UI，WinForms 风格窗体渲染、MessageBox、实训台 LED 屏
- 端到端测试与 100 个程序并发的压力测试
- 教材逐任务摘要（docs/教材摘要）

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

runtime/Sim.WinForms/Forms/Application.cs

@@ -0,0 +1,56 @@
+using System.Collections;
+using System.Collections.Generic;
+using Sim.Host;
+
+namespace System.Windows.Forms;
+
+public static class Application
+{
+    internal static readonly List<Form> OpenFormsList = new();
+    private static bool _exitRequested;
+
+    public static FormCollection OpenForms { get; } = new();
+
+    public static string StartupPath => AppContext.BaseDirectory.TrimEnd('/', '\\');
+    public static string ExecutablePath => System.IO.Path.Combine(StartupPath, "app.exe");
+    public static string ProductName => "WindowsFormsApplication";
+
+    public static void EnableVisualStyles() { }
+
+    public static void SetCompatibleTextRenderingDefault(bool defaultValue) { }
+
+    public static void SetHighDpiMode(object mode) { }
+
+    /// <summary>显示主窗体并运行消息循环，直到主窗体关闭或调用 Application.Exit()</summary>
+    public static void Run(Form mainForm)
+    {
+        mainForm.Show();
+        SimHost.Ui.RunUntil(() => _exitRequested || mainForm.IsClosed);
+        Exit();
+    }
+
+    public static void Run()
+    {
+        SimHost.Ui.RunUntil(() => _exitRequested);
+    }
+
+    public static void Exit()
+    {
+        _exitRequested = true;
+        foreach (var form in OpenFormsList.ToArray()) form.CloseCore(CloseReason.ApplicationExitCall);
+        SimHost.Ui.Wake();
+    }
+
+    public static void ExitThread() => Exit();
+
+    public static void DoEvents() => SimHost.Ui.DoEvents();
+
+    public sealed class FormCollection : IEnumerable<Form>
+    {
+        public int Count => OpenFormsList.Count;
+        public Form this[int index] => OpenFormsList[index];
+        public Form? this[string name] => OpenFormsList.Find(f => f.Name == name);
+        public IEnumerator<Form> GetEnumerator() => OpenFormsList.GetEnumerator();
+        IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
+    }
+}