Refine Synology backup workflow

Co-authored-by: Copilot App <[email protected]>

docs/production-runbook.md

@@ -36,7 +36,7 @@ This runbook is the operational checklist for releasing and monitoring the trans
    - stdout aggregation receives events
    - file logs are written under `./data/logs`
 5. Create a fresh PostgreSQL backup after successful deployment:
-   - `sh deploy/backup/create_postgres_backup.sh` (creates DB dump + uploads + config recovery set)
+   - `sh deploy/backup/create_postgres_backup.sh` (creates local DB dump + Synology DB/config/log artifacts + incremental media mirror)
 
 ## 3. Rollback triggers and actions
 
@@ -56,7 +56,7 @@ This runbook is the operational checklist for releasing and monitoring the trans
    - relevant DB rows (`job`, `job_source`, `execution_attempt`)
 5. If persistence regression is confirmed, restore the latest valid DB dump:
    - `sh deploy/backup/restore_postgres_backup.sh <dump-file>`
-   - paired uploads/config artifacts (same timestamp) are restored automatically when present.
+   - Synology media mirror and paired config snapshot (same timestamp) are restored automatically when present.
 
 ## 4. Post-release monitoring checklist