Добавьте файлы проекта.

Program.cs

@@ -0,0 +1,32 @@
+using Microsoft.AspNetCore.Mvc;
+using Swashbuckle.AspNetCore.Swagger;
+
+
+namespace ContactsApp;
+
+public class Program
+{
+    public static void Main(string[] args)
+    {
+        var builder = WebApplication.CreateBuilder(args);
+
+        // Add services to the container.
+        builder.Services.AddControllers();
+        builder.Services.AddAuthorization();
+        builder.Services.AddSwaggerGen();
+
+        builder.Services.AddSingleton<IContactRepository, ContactRepository>();
+
+        var app = builder.Build();
+
+        // Configure the HTTP request pipeline.
+        // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> -> <20><><EFBFBD><EFBFBD><EFBFBD> -> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> -> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> -> Kestrel -> (HttpContext) Middlewares -> Controller (mapping) -> AfterMethod -> Method -> BeforeMethod
+        app.UseAuthorization();
+        app.UseSwagger();
+        app.UseSwaggerUI();
+        
+
+        app.MapControllers();
+        app.Run();
+    }
+}