feat: add commands for managing organizations and users

Introduce `AddUserToOrganization`, `RemoveAPIKey`, and 
`RemoveOrganization` commands to enhance organization 
management. Implement validation for user addition and 
API key removal. Update GraphQL schema to support new 
mutations and add caching for the new events, ensuring 
that organizations and their relationships are accurately 
represented in the cache.

cmd/service/service.go

@@ -92,7 +92,10 @@ func start(closeEvents chan error, logger *slog.Logger, connectToAmqpFunc func(u
 		pg.WithEventTypes(
 			&domain.SubGraphUpdated{},
 			&domain.OrganizationAdded{},
+			&domain.UserAddedToOrganization{},
 			&domain.APIKeyAdded{},
+			&domain.APIKeyRemoved{},
+			&domain.OrganizationRemoved{},
 		),
 	)
 	if err != nil {
@@ -127,10 +130,16 @@ func start(closeEvents chan error, logger *slog.Logger, connectToAmqpFunc func(u
 		goamqp.EventStreamPublisher(publisher),
 		goamqp.TransientEventStreamConsumer("SubGraph.Updated", serviceCache.Update, domain.SubGraphUpdated{}),
 		goamqp.TransientEventStreamConsumer("Organization.Added", serviceCache.Update, domain.OrganizationAdded{}),
+		goamqp.TransientEventStreamConsumer("Organization.UserAdded", serviceCache.Update, domain.UserAddedToOrganization{}),
 		goamqp.TransientEventStreamConsumer("Organization.APIKeyAdded", serviceCache.Update, domain.APIKeyAdded{}),
+		goamqp.TransientEventStreamConsumer("Organization.APIKeyRemoved", serviceCache.Update, domain.APIKeyRemoved{}),
+		goamqp.TransientEventStreamConsumer("Organization.Removed", serviceCache.Update, domain.OrganizationRemoved{}),
 		goamqp.WithTypeMapping("SubGraph.Updated", domain.SubGraphUpdated{}),
 		goamqp.WithTypeMapping("Organization.Added", domain.OrganizationAdded{}),
+		goamqp.WithTypeMapping("Organization.UserAdded", domain.UserAddedToOrganization{}),
 		goamqp.WithTypeMapping("Organization.APIKeyAdded", domain.APIKeyAdded{}),
+		goamqp.WithTypeMapping("Organization.APIKeyRemoved", domain.APIKeyRemoved{}),
+		goamqp.WithTypeMapping("Organization.Removed", domain.OrganizationRemoved{}),
 	}
 	if err := conn.Start(rootCtx, setups...); err != nil {
 		return fmt.Errorf("failed to setup AMQP: %v", err)