chore: move the go code into a subfolder

apps/api/cmd/initialise/helper.go

@@ -0,0 +1,23 @@
+package initialise
+
+import (
+	"context"
+	"errors"
+
+	"github.com/jackc/pgx/v5/pgconn"
+
+	"github.com/zitadel/zitadel/internal/database"
+)
+
+func exec(ctx context.Context, db database.ContextExecuter, stmt string, possibleErrCodes []string, args ...interface{}) error {
+	_, err := db.ExecContext(ctx, stmt, args...)
+	pgErr := new(pgconn.PgError)
+	if errors.As(err, &pgErr) {
+		for _, possibleCode := range possibleErrCodes {
+			if possibleCode == pgErr.Code {
+				return nil
+			}
+		}
+	}
+	return err
+}