Add caption naturalizer profiles

docs/prompt-architecture-improvement-plan.md

@@ -309,10 +309,13 @@ Keep here:
 - shared cast descriptor parsing and label replacement from `krea_cast.py`.
 - caption detail-level/style-policy normalization, clothing cleanup, and
   composition cleanup from `caption_policy.py`.
+- caption profiles for manual controls, concise training captions, dense
+  training captions, and browsing captions live in `caption_policy.py` and are
+  exposed by `SxCP Caption Naturalizer`.
 
 Improve later:
-
-- add a `caption_profile` option for concise/dense LoRA caption styles.
+- add more caption profiles if a new training or browsing workflow needs a
+  distinct default.
 
 ### Category JSON Path