fixed doc env vars + mongo v2 migration

api/fx/storage/mongo/store/rates_test.go

@@ -10,7 +10,7 @@ import (
 	rd "github.com/tech/sendico/pkg/db/repository/decoder"
 	"github.com/tech/sendico/pkg/db/storable"
 	"github.com/tech/sendico/pkg/merrors"
-	"go.mongodb.org/mongo-driver/bson/primitive"
+	"go.mongodb.org/mongo-driver/v2/bson"
 	"go.uber.org/zap"
 )
 
@@ -40,7 +40,7 @@ func TestRatesStoreUpsertInsert(t *testing.T) {
 
 func TestRatesStoreUpsertUpdate(t *testing.T) {
 	ctx := context.Background()
-	existingID := primitive.NewObjectID()
+	existingID := bson.NewObjectID()
 	var updated *model.RateSnapshot
 
 	repo := &repoStub{