Major update

communication-hub/Program.cs

@@ -0,0 +1,39 @@
+using CommunicationHub.Hubs;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSignalR();
+builder.Services.AddCors((options) =>
+{
+    options.AddPolicy("CorsPolicy", policy =>
+    {
+        policy.AllowAnyHeader()
+            .AllowAnyMethod()
+            .WithOrigins("http://localhost:3000")
+            .AllowCredentials();
+    });
+});
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+app.UseRouting();
+app.UseCors("CorsPolicy");
+app.MapControllers();
+app.MapHub<SeasonHub>("/hubs/season");
+
+app.Run();
+