Align architecture roadmap with current routes

docs/prompt-architecture-improvement-plan.md

@@ -654,8 +654,11 @@ Near-term:
 
 Medium-term:
 
-- Extract category loading and role graph logic.
-- Convert keyword-heavy interaction filtering to template metadata.
+- Keep category loading, prompt-row routing, and role-graph routing in their
+  extracted owner modules instead of rebuilding them inside
+  `prompt_builder.py`.
+- Add new template metadata only when a generated route needs a concrete action,
+  position, or formatter hint that is not already expressible.
 
 ### Insta/OF Pair
 
@@ -673,9 +676,10 @@ Near-term:
 
 Medium-term:
 
-- Make pair camera and clothing phases explicit subfunctions.
-- Add smoke fixtures for same-cast, POV man, explicit nude, and different-camera
-  modes.
+- Keep camera and clothing phases in `pair_camera.py` and `pair_clothing.py`;
+  extend those modules when a pair output shows concrete camera/clothing drift.
+- Add pair smoke fixtures only when a new pair option or observed output changes
+  soft/hard cast, POV, explicit-nude, or split-camera metadata behavior.
 
 ### Krea2
 
@@ -706,8 +710,10 @@ Near-term:
 
 Medium-term:
 
-- Dispatch action rewriting by action family.
-- Continue splitting remaining Krea semantic helpers into smaller modules.
+- Keep action-family rewriting dispatched through `krea_action_dispatch.py` and
+  the existing `krea_action_*` / `krea_pov*` helpers.
+- Add or split Krea helpers only for an observed route failure or a new
+  action-family metadata path.
 
 ### SDXL