chore(deploy): leave database backups to external tools

The app no longer dumps Postgres, restores it, or checks copies in CI.

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitea/workflows/ci-db.yml

@@ -10,13 +10,11 @@ on:
     paths:
       - 'services/api/**'
       - 'services/recommender/**'
-      - 'deploy/backup.sh'
       - '.gitea/workflows/ci-db.yml'
   pull_request:
     paths:
       - 'services/api/**'
       - 'services/recommender/**'
-      - 'deploy/backup.sh'
       - '.gitea/workflows/ci-db.yml'
 
 concurrency:
@@ -84,26 +82,3 @@ jobs:
         run: |
           uv sync --frozen
           uv run pytest -q tests/test_db_integration.py
-      # База уже наполнена сценариями выше — проверяем настоящий цикл копия → проверка → восстановление.
-      - name: Бэкап, проверка и восстановление (deploy/backup.sh)
-        env:
-          PGHOST: postgres
-          PGUSER: pipu
-          PGPASSWORD: pipu
-          PGDATABASE: pipu
-          BACKUP_DIR: /tmp/backups
-          VERIFY_EXACT: "1"
-        run: |
-          SUDO=$(command -v sudo || true)
-          $SUDO install -d /usr/share/postgresql-common/pgdg
-          $SUDO curl -fsSLo /usr/share/postgresql-common/pgdg/apt.postgresql.org.asc https://www.postgresql.org/media/keys/ACCC4CF8.asc
-          echo "deb [signed-by=/usr/share/postgresql-common/pgdg/apt.postgresql.org.asc] https://apt.postgresql.org/pub/repos/apt $(. /etc/os-release && echo "$VERSION_CODENAME")-pgdg main"             | $SUDO tee /etc/apt/sources.list.d/pgdg.list >/dev/null
-          $SUDO apt-get update -qq && $SUDO apt-get install -y -qq postgresql-client-17 >/dev/null
-          export PATH=/usr/lib/postgresql/17/bin:$PATH
-          before=$(psql -Atc "SELECT count(*) FROM tracks")
-          file=$(bash deploy/backup.sh once)
-          bash deploy/backup.sh verify "$file"
-          bash deploy/backup.sh restore "$file"
-          after=$(psql -Atc "SELECT count(*) FROM tracks")
-          echo "tracks: $before → $after"
-          test "$before" = "$after"