Fix integrazione preliminare servizi utils.stats x IOC:

- aggiunta migrations
- correzioni versione ef6 da ef8
- correzioni init varie

MP.IOC/Program.cs

@@ -1,5 +1,7 @@
 using Microsoft.AspNetCore.Http.Extensions;
+using Microsoft.EntityFrameworkCore;
 using Microsoft.OpenApi.Models;
+using MP.Data;
 using MP.Data.Repository.Utils;
 using MP.Data.Services.Utils;
 using MP.IOC.Data;
@@ -60,11 +62,16 @@ logger.Info("YARP reverse proxy configured");
 builder.Services.AddSingleton<PreserveBodyTransformer>();
 builder.Services.AddSingleton<RouteStatsManager>();
 builder.Services.AddHostedService<MetricsFlushService>();
-builder.Services.AddHostedService<MetricsDbFlushService>();
+
+// da rivedere
+#if false
+builder.Services.AddHostedService<MetricsDbFlushService>(); 
+#endif
 
 // MP.Data DbContext for Stats repositories
-builder.Services.AddDbContextFactory<DataLayerContext>(options =>
-    options.UseSqlServer(builder.Configuration.GetConnectionString("MP.Utils")));
+string utilsConnString = builder.Configuration.GetConnectionString("MP.Utils") ?? "Server=localhost;Database=MoonPro_Utils; integrated security=True; MultipleActiveResultSets=True; App=MP.IOC;";
+builder.Services.AddDbContextFactory<MoonPro_UtilsContext>(options =>
+    options.UseSqlServer(utilsConnString));
 
 // MP.Data Services Utils - Statistiche DB
 builder.Services.AddScoped<IStatsAggrRepository, StatsAggrRepository>();