fix(monitoring): probe OIDC-safe health routes

apps/knowledge/knowledge.yaml

@@ -93,6 +93,7 @@ spec:
         prometheus.io/scrape: "true"
         prometheus.io/port: "8080"
         prometheus.io/path: "/metrics"
+        flowercore.io/healthz-auth-policy: "allow-anonymous"
     spec:
       securityContext:
         runAsNonRoot: true
@@ -123,9 +124,9 @@ spec:
               value: "Production"
             - name: DOTNET_SYSTEM_GLOBALIZATION_INVARIANT
               value: "false"
-            # AuthentiK/OIDC is wired but not enforced until the
-            # knowledge-oidc-client Secret is provisioned and
-            # FlowerCore__Auth__Enabled is flipped to true.
+            # AuthentiK/OIDC is enforced. /healthz stays anonymous by contract;
+            # see flowercore.io/healthz-auth-policy above and the Sprint 58
+            # OIDC readiness probe audit.
             - name: FlowerCore__Auth__Enabled
               value: "true"
             - name: FlowerCore__Auth__Oidc__Enabled