dev postgresql database integration

api/Program.cs

@@ -1,12 +1,16 @@
 
 using Microsoft.AspNetCore.HttpOverrides;
+using Microsoft.EntityFrameworkCore;
 
-using agologumApi.Stores;
+using agologumApi.Services;
 
 var builder = WebApplication.CreateBuilder(args);
 
+builder.Services.AddDbContext<AppDbContext>(options => 
+    options.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection")));
+
 builder.Services.AddControllers();
-builder.Services.AddSingleton<UserStore>();
+builder.Services.AddScoped<UserService>();
 
 // configuration for behind my nginx proxy
 builder.Services.Configure<ForwardedHeadersOptions>(options =>