diff --git a/.gitignore b/.gitignore
index da5a509..dc10ea5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,4 @@ cc_tasks/
 *.b64
 chunk_*.bin
 chunk_*.b64
+_audit/db_snapshots/
diff --git a/scripts/archive_backup_tables.sql b/scripts/archive_backup_tables.sql
new file mode 100644
index 0000000..01bae8d
--- /dev/null
+++ b/scripts/archive_backup_tables.sql
@@ -0,0 +1,44 @@
+-- archive_backup_tables.sql — moved 26 backup/snapshot tables out of pgz_sport
+-- Author: cc1@rinet.one  Date: 2026-05-05
+-- Re-runnable (idempotent — only moves tables that still match pattern in pgz_sport)
+--
+-- Snapshot dump kept at: _audit/db_snapshots/backup_tables_20260505_085057.sql.gz (56 MB)
+--
+-- Patterns matched: _backup_  _premerge_  _pre_  _dedup_  _deprecated_  _garbage_
+--                   _pre_godisnjak  _pre_b_switch
+--
+-- After this:
+--   pgz_sport canonical tables: 86 (was 112)
+--   pgz_sport_archive holds:    26
+--   ~97k rows of stale data archived (no DROP — recoverable via ALTER ... SET SCHEMA back)
+--
+-- Rollback any single table:
+--   ALTER TABLE pgz_sport_archive.<name> SET SCHEMA pgz_sport;
+--
+-- Rollback all:
+--   DO $$ DECLARE r record; BEGIN
+--     FOR r IN SELECT relname FROM pg_stat_user_tables WHERE schemaname='pgz_sport_archive' LOOP
+--       EXECUTE format('ALTER TABLE pgz_sport_archive.%I SET SCHEMA pgz_sport', r.relname);
+--     END LOOP; END $$;
+--
+-- Permanent drop (after confidence period):
+--   DROP SCHEMA pgz_sport_archive CASCADE;
+
+BEGIN;
+CREATE SCHEMA IF NOT EXISTS pgz_sport_archive;
+
+DO $$
+DECLARE r record;
+BEGIN
+  FOR r IN
+    SELECT relname FROM pg_stat_user_tables
+    WHERE schemaname='pgz_sport'
+      AND (relname ~ '_backup_|_premerge_|_pre_|_dedup_|_deprecated_|_garbage_|_pre_godisnjak|_pre_b_switch')
+    ORDER BY relname
+  LOOP
+    EXECUTE format('ALTER TABLE pgz_sport.%I SET SCHEMA pgz_sport_archive', r.relname);
+    RAISE NOTICE 'moved %', r.relname;
+  END LOOP;
+END $$;
+
+COMMIT;