feat(worldbuilder): pin k8s demo to fake backend (#10)

apps/worldbuilder/README.md

@@ -28,9 +28,12 @@ Source: `D:\git\FlowerCore\FlowerCore.WorldBuilder` (master)
    Memory: `feedback_rke2_image_import_per_node_scp`.
 3. **Bump image tag** in `worldbuilder.yaml` and git push.
    ArgoCD ApplicationSet picks up within ~3 minutes.
-4. **First production render** — open `https://worldbuilder.iamworkin.lan`,
-   create World → Character → Storyboard → ExportJob, confirm artifact
-   downloads. ComfyUI lives on BLUEJAY-WS at `http://10.0.56.20:8188`.
+4. **First production render** — open
+   `https://worldbuilder.iamworkin.lan/studio/c32e0000-0000-4000-8000-000000000004`
+   and confirm the Cyberpunk Blue Jay demo prompt loads with five seeded fake
+   generated images. This Sprint 32 visitor-safe profile uses
+   `ClientMode=fake`; switch the image-generation env vars back to ComfyUI only
+   for an operator-owned GPU render lane.
 
 ## Health probes
 
@@ -53,8 +56,13 @@ Source: `D:\git\FlowerCore\FlowerCore.WorldBuilder` (master)
 
 ## Image generation backend
 
-`FlowerCore:WorldBuilder:ImageGeneration:BaseUrl=http://10.0.56.20:8188` —
-ComfyUI runs on BLUEJAY-WS Windows (R9700 / gfx1201 / ROCm 7.2.1). Pod reaches
-the workstation directly across the 10.0.56.0/24 VLAN (no Podman-style host-
-filter issues — K8s pods route via Calico, which is L3-routed across the
-VLAN).
+Sprint 32 pins the Kubernetes profile to
+`FlowerCore:WorldBuilder:ImageGeneration:ClientMode=fake` with
+`BaseUrl=http://127.0.0.1:1`. That keeps the public/internal visitor demo
+deterministic, avoids GPU exposure, and still exercises the studio/gallery
+surface with persisted generated-image metadata.
+
+The previous ComfyUI backend target was `http://10.0.56.20:8188` on
+BLUEJAY-WS (R9700 / gfx1201 / ROCm 7.2.1). Re-enable it only in an
+operator-owned follow-up that also verifies workstation reachability and image
+import freshness.