Implement manual versioned Synology deployments for S6

README.md

@@ -266,6 +266,11 @@ Only successful `main` runs publish images to the Synology registry. See
 image names, diagnostics and recovery, and [validation evidence](docs/s4-validation.md)
 for the current operational status.
 
+Production releases and rollback use separate manual Gitea workflows. See the
+[deployment runbook](docs/production-deployment.md) for Synology provisioning,
+semantic version tags, release/retry/rollback and the accepted data-loss limitation
+until S16, and [S6 evidence](docs/s6-validation.md) for deployment readiness.
+
 ### Java formatting (S8)
 
 Maven is the authoritative formatting path. The root build runs the actual