feat(CUB-56): [Control Center] Agent State Database Migration

backend/ControlCenter.Api.csproj

@@ -13,6 +13,7 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="10.1.7" />
   </ItemGroup>
 
 </Project>

backend/Program.cs

@@ -1,38 +0,0 @@
-using ControlCenter.Api.Data;
-using ControlCenter.Api.Hubs;
-using Microsoft.EntityFrameworkCore;
-
-var builder = WebApplication.CreateBuilder(args);
-
-// Add services to the container.
-builder.Services.AddOpenApi();
-
-// Register SignalR for real-time agent status updates
-builder.Services.AddSignalR();
-
-// Register DbContext with PostgreSQL
-builder.Services.AddDbContext<AppDbContext>(options =>
-{
-    var connectionString = builder.Configuration.GetConnectionString("DefaultConnection")
-        ?? "Host=localhost;Database=control_center;Username=postgres;Password=postgres";
-
-    options.UseNpgsql(connectionString, npgsqlOptions =>
-    {
-        npgsqlOptions.MigrationsAssembly(typeof(AppDbContext).Assembly.FullName);
-    });
-});
-
-var app = builder.Build();
-
-// Configure the HTTP request pipeline.
-if (app.Environment.IsDevelopment())
-{
-    app.MapOpenApi();
-}
-
-app.UseHttpsRedirection();
-
-// Map SignalR hubs
-app.MapHub<AgentStatusHub>("/hubs/agent-status");
-
-app.Run();