Clarify ArgoCD status and update MySQL→MariaDB

- ArgoCD: Installed but not configured yet (Fase 4)
- All MySQL references updated to MariaDB 11.4 LTS
- Current CI/CD: Gitea Actions (active)
- Future GitOps: ArgoCD (pending configuration)

Co-Authored-By: Claude Sonnet 4.5 (1M context) <noreply@anthropic.com>

DEVELOPMENT-WORKFLOW.md

@@ -303,13 +303,19 @@ Push → Gitea Actions → Runner Pod (DinD) → Docker build → Push to regist
 - Docker-in-Docker (DinD) para builds
 - Volumenes compartidos para cache
 
-### Alternativa Futura: ArgoCD Image Updater
+### Futura: GitOps con ArgoCD (No configurado aún)
 
-Cuando esté configurado:
+**Estado**: ArgoCD está instalado en el cluster pero **no configurado**.
+
+**Cuando se configure** (Fase 4 del ROADMAP):
 ```
 Push → Build → Registry → ArgoCD detecta → Auto-update K8s → Deploy
 ```
 
+**Por ahora**: Deploy manual con `kubectl apply` o `kubectl set image`.
+
+**Configurar**: Ver `ROADMAP.md` Fase 4.1 y `docs/06-deployment/gitops.md`
+
 ---
 
 ## 🎯 Checklist de Feature Completa