feat: remove per-customer valkey, use managed Valkey with REDIS_KEY_PREFIX

chart/templates/backend-deployment.yaml

@@ -38,6 +38,11 @@ spec:
                 secretKeyRef:
                   name: lunarfront-secrets
                   key: redis-url
+            - name: REDIS_KEY_PREFIX
+              valueFrom:
+                secretKeyRef:
+                  name: lunarfront-secrets
+                  key: redis-key-prefix
             - name: JWT_SECRET
               valueFrom:
                 secretKeyRef:

chart/values.yaml

@@ -26,19 +26,6 @@ frontend:
       cpu: 200m
       memory: 128Mi
 
-valkey:
-  image:
-    repository: valkey/valkey
-    tag: "8"
-  port: 6379
-  resources:
-    requests:
-      cpu: 50m
-      memory: 64Mi
-    limits:
-      cpu: 200m
-      memory: 128Mi
-
 ingress:
   host: ""
   className: nginx