Replace calendar service with new .NET version

Calendar/Service/Program.cs

@@ -0,0 +1,34 @@
+using ChrisKaczor.Common.OpenTelemetry;
+using System.Reflection;
+
+namespace ChrisKaczor.HomeMonitor.Calendar.Service;
+
+public static class Program
+{
+    public static void Main(string[] args)
+    {
+        var builder = WebApplication.CreateBuilder(args);
+
+        builder.Services.AddCors(o => o.AddPolicy("CorsPolicy", corsPolicyBuilder => corsPolicyBuilder.AllowAnyMethod().AllowAnyHeader().AllowCredentials().WithOrigins("http://localhost:4200")));
+
+        builder.Configuration.AddEnvironmentVariables();
+
+        builder.Services.AddCommonOpenTelemetry(Assembly.GetExecutingAssembly().GetName().Name, builder.Configuration["Telemetry:Endpoint"]);
+
+        builder.Services.AddSingleton<HttpClient>();
+
+        builder.Services.AddControllers();
+
+        // -- -- 
+
+        var app = builder.Build();
+
+        app.UseCors("CorsPolicy");
+
+        app.UseAuthorization();
+
+        app.MapControllers();
+
+        app.Run();
+    }
+}