Expand camera route smoke coverage

docs/prompt-architecture-improvement-plan.md

@@ -241,8 +241,10 @@ Near-term:
 - Add final prose hygiene already done through `prompt_hygiene.py`.
 - Add smoke coverage through `tools/prompt_smoke.py` for metadata-driven Krea2
   formatting across built-in rows, hardcore rows, same-cast pairs, and POV
-  pairs. Expand it next for close foreplay, POV penetration, and camera-scene
-  preservation.
+  pairs.
+- Cover camera-scene preservation through `tools/prompt_smoke.py` for single
+  rows, split soft/hard pair cameras, and POV camera-scene routing. Expand it
+  next for close foreplay and POV penetration.
 
 Medium-term:
 
@@ -300,8 +302,8 @@ Medium-term:
 
 ## Recommended Next Passes
 
-1. Expand `tools/prompt_smoke.py` with camera-scene, explicit nude, and
-   different-camera pair fixtures.
+1. Expand `tools/prompt_smoke.py` with close foreplay, POV penetration, and
+   location-theme fixtures.
 2. Split Krea action/POV/clothing helpers into separate modules.
 3. Add category JSON pool reference validation to `tools/prompt_map_audit.py`.
 4. Extract scene-camera adapters from `prompt_builder.py`.