refactor: consolidate backend into modular monolith

Tiku.Infrastructure/PlatformBilling/SaasSubscriptionLifecycleService.cs

@@ -8,7 +8,6 @@ using Tiku.Application.Tenancy;
 using Tiku.Domain.Operations;
 using Tiku.Domain.Platform;
 using Tiku.Domain.Tenancy;
-using Tiku.Infrastructure.Messaging;
 using Tiku.Infrastructure.Persistence;
 
 namespace Tiku.Infrastructure.PlatformBilling;
@@ -93,7 +92,6 @@ internal sealed class SaasSubscriptionLifecycleService(
 
         var previousStatus = subscription.Status;
         var previousBaseVersionId = subscription.BaseOfferingVersionId;
-        var oldFeatures = await LoadFeaturesAsync(dbContext, subscription, cancellationToken);
         var items = await dbContext.TenantSaasSubscriptionItems
             .Where(value => value.TenantId == tenantId && value.SubscriptionId == subscription.Id)
             .ToArrayAsync(cancellationToken);
@@ -209,23 +207,6 @@ internal sealed class SaasSubscriptionLifecycleService(
         await services.GetRequiredService<ITenantFeatureCacheInvalidator>()
             .InvalidateAsync(tenantId, cancellationToken);
 
-        var newFeatures = await LoadFeaturesAsync(dbContext, subscription, cancellationToken);
-        var changedFeatures = oldFeatures.Concat(newFeatures).Distinct(StringComparer.Ordinal).ToArray();
-        var eventPublisher = services.GetRequiredService<ISecurityEventPublisher>();
-        var eventVersion = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
-        var correlationId = $"saas-subscription-{subscription.Id:N}-lifecycle-{subscription.LifecycleVersion}";
-        foreach (var featureCode in changedFeatures)
-        {
-            await eventPublisher.CapabilityChangedAsync(
-                tenantId,
-                featureCode,
-                transition,
-                eventVersion,
-                correlationId,
-                cancellationToken);
-        }
-        await services.GetRequiredService<ITenantRuntimeCacheInvalidator>()
-            .InvalidateAsync(tenantId, cancellationToken);
         return true;
     }
 
@@ -251,26 +232,4 @@ internal sealed class SaasSubscriptionLifecycleService(
         }
     }
 
-    private static async Task<string[]> LoadFeaturesAsync(
-        TikuDbContext dbContext,
-        TenantSaasSubscription subscription,
-        CancellationToken cancellationToken)
-    {
-        var versionIds = await dbContext.TenantSaasSubscriptionItems.AsNoTracking()
-            .Where(value =>
-                value.TenantId == subscription.TenantId &&
-                value.SubscriptionId == subscription.Id &&
-                value.Status == TenantSaasSubscriptionItemStatus.Active)
-            .Select(value => value.OfferingVersionId)
-            .ToArrayAsync(cancellationToken);
-        if (!versionIds.Contains(subscription.BaseOfferingVersionId))
-        {
-            versionIds = [.. versionIds, subscription.BaseOfferingVersionId];
-        }
-        return await dbContext.SaasOfferingVersionFeatures.AsNoTracking()
-            .Where(value => versionIds.Contains(value.OfferingVersionId))
-            .Select(value => value.FeatureCode)
-            .Distinct()
-            .ToArrayAsync(cancellationToken);
-    }
 }