tes

            }

        }

        // 3. Vacuum all nodes to reclaim space from overwritten blocks

        if (result.groups_repaired > 0) {

        // 3. Rebalance: move misplaced blocks to their correct nodes

        auto rb = pclient_->rebalance();

        result.groups_repaired += rb.rebalanced;

        result.groups_failed  += rb.failed;

        // 4. Vacuum all nodes to reclaim space from overwritten / deleted blocks

        if (result.groups_repaired > 0 || rb.rebalanced > 0) {

            pclient_->vacuum_all_nodes();

            recovery_epoch_.fetch_add(1);

        }

        std::cerr << "[SCRUB] complete: checked=" << result.groups_checked

                  << " repaired=" << result.groups_repaired

                  << " rebalanced=" << rb.rebalanced

                  << " failed=" << result.groups_failed << std::endl;

        return result;