Track the practice cluster's Helm values in Git

infra/helm/medical-chatbot/values-practice-data.yaml

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+# k3s practice cluster — the `medical-chatbot-data` release.
+#
+# Companion to values-practice.yaml. The practice cluster deliberately splits
+# the chart into two ArgoCD Applications so that PostgreSQL and Qdrant survive
+# every app rollout, prune and self-heal: only this release owns the
+# PersistentVolumeClaims, so an app-side sync failure can never delete the
+# 15,100-point corpus or the query history.
+#
+# It therefore runs *only* the stateful half — PostgreSQL and Qdrant are left
+# at their chart defaults (`enabled: true`) and everything else is switched off.
+#
+# Kept inline on the Application rather than here: nothing. This release has no
+# image tag that CI rewrites and no secret, so it is fully tracked in Git.
+
+global:
+  environment: k3s-practice
+
+aiService:
+  enabled: false
+
+web:
+  enabled: false
+
+observability:
+  enabled: false
+
+ingress:
+  enabled: false