Document TimescaleDB in README and AGENTS

README.md

@@ -60,6 +60,7 @@ All three are installed as k3s-native `HelmChart` resources in `kube-system` nam
 |---|---|---|---|
 | gitea-data | gitea | 10 Gi | Gitea SQLite DB, git repos, packages |
 | wolsey-content | default | 10 Gi | Wolsey static content (6.5 GB) |
+| timescaledb-data | system | 10 Gi | TimescaleDB data |
 
 ## Workloads
 
@@ -73,6 +74,7 @@ All three are installed as k3s-native `HelmChart` resources in `kube-system` nam
 | School Games (dev) | https://develop.imcu.ro | default | homeschool/games:7d3a57d | — |
 | School Games (default) | — | default | homeschool/games:2a4f03df | — |
 | Randomly | https://randomly.imcu.ro | randomly | homeschool/randomly:latest | — |
+| TimescaleDB | timescaledb.system.svc:5432 | system | timescale/timescaledb:2.29.1-pg16 | 10 GB Longhorn |
 
 ## DNS (Cloudflare)
 
@@ -215,7 +217,7 @@ k3s-cluster/
 │   ├── cert-manager.yaml        # TLS certificate manager (Let's Encrypt)
 │   └── longhorn.yaml            # Distributed storage (2 replicas, /var/lib/longhorn/)
 ├── cluster-config/              # Cluster-wide configuration
-│   ├── namespaces.yaml          # Application namespaces (gitea, games, randomly)
+│   ├── namespaces.yaml          # Application namespaces (gitea, games, randomly, system)
 │   ├── clusterissuer.yaml       # Let's Encrypt ClusterIssuer
 │   └── image-pull-secret-template.txt  # How to create gitea-registry secrets
 └── workloads/                   # Application manifests (deploy + svc + ingress + pvc)
@@ -224,7 +226,8 @@ k3s-cluster/
     ├── school-games-prod/school-games-prod.yaml
     ├── school-games-dev/school-games-dev.yaml
     ├── school-games-default/school-games-default.yaml
-    └── randomly/randomly.yaml
+    ├── randomly/randomly.yaml
+    └── timescaledb/timescaledb.yaml
 ```
 
 ### How to update a service