ui and tiltfile tweaks, update docs

ctrl/k8s/base/kustomization.yaml

@@ -13,8 +13,9 @@ resources:
   - gateway.yaml
 
 # Hash suffix disabled so the name stays static — lets Tilt group it under the
-# 'infra' resource. Pod doesn't auto-restart on Caddyfile edit; the Tiltfile's
-# 'gateway-reload' local_resource closes that loop.
+# 'infra' resource. Trade-off: editing the Caddyfile won't roll the gateway pod
+# automatically; apply it with
+#   kubectl --context kind-nvi -n nvi rollout restart deployment/gateway
 configMapGenerator:
   - name: gateway-config
     files: