Add missing Program.cs file

Examples/BotAndWebApplication/Program.cs

@@ -0,0 +1,35 @@
+using BotAndWebApplication.BotStuff.Tasks;
+
+internal class Program
+{
+    private static void Main(string[] args)
+    {
+        var builder = WebApplication.CreateBuilder(args);
+
+        // Add services to the container.
+        builder.Services.AddRazorPages();
+
+        builder.Services.AddHostedService<BotBackgroundTask>();
+
+        var app = builder.Build();
+
+        // Configure the HTTP request pipeline.
+        if (!app.Environment.IsDevelopment())
+        {
+            app.UseExceptionHandler("/Error");
+            // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
+            app.UseHsts();
+        }
+
+        app.UseHttpsRedirection();
+        app.UseStaticFiles();
+
+        app.UseRouting();
+
+        app.UseAuthorization();
+
+        app.MapRazorPages();
+
+        app.Run();
+    }
+}