chore: move the go code into a subfolder

apps/api/internal/integration/feature.go

@@ -0,0 +1,30 @@
+package integration
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/zitadel/zitadel/pkg/grpc/feature/v2"
+)
+
+func EnsureInstanceFeature(t *testing.T, ctx context.Context, instance *Instance, features *feature.SetInstanceFeaturesRequest, assertFeatures func(t *assert.CollectT, got *feature.GetInstanceFeaturesResponse)) {
+	ctx = instance.WithAuthorizationToken(ctx, UserTypeIAMOwner)
+	_, err := instance.Client.FeatureV2.SetInstanceFeatures(ctx, features)
+	require.NoError(t, err)
+	retryDuration, tick := WaitForAndTickWithMaxDuration(ctx, 5*time.Minute)
+	require.EventuallyWithT(t,
+		func(tt *assert.CollectT) {
+			got, err := instance.Client.FeatureV2.GetInstanceFeatures(ctx, &feature.GetInstanceFeaturesRequest{
+				Inheritance: true,
+			})
+			require.NoError(tt, err)
+			assertFeatures(tt, got)
+		},
+		retryDuration,
+		tick,
+		"timed out waiting for ensuring instance feature")
+}