feat(data): add CNPG managed roles + Database CRs for authentik/temporal — replaces missing helmfile post-sync user creation

authentik/temporal DB users+databases were never provisioned (old helmfile hook
gone; db-init-job only made schemas in shared app DB). Adds managed.roles
(authentik/temporal login roles, passwords from basic-auth secrets) + Database CRs
(dedicated DBs owned by each role). Role secrets applied out-of-band (SOPS), not in
kustomize resources so data-schemas app doesn't choke on ciphertext.

k8s/data/authentik-database.yaml

@@ -0,0 +1,10 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Database
+metadata:
+  name: authentik
+  namespace: ddb
+spec:
+  name: authentik
+  owner: authentik
+  cluster:
+    name: ddb-cluster