Add SDXL formatter profiles

docs/prompt-architecture-improvement-plan.md

@@ -288,10 +288,12 @@ Keep here:
 - shared formatter input parsing from `formatter_input.py`.
 - style presets, quality presets, default negative prompt, and action/position
   family tag hints from `sdxl_presets.py`.
+- formatter profiles for manual controls, Pony flat-vector, SDXL photo, and
+  plain flat-vector styles live in `sdxl_presets.py` and are exposed by
+  `SxCP SDXL Formatter`.
 
 Improve later:
 
-- add formatter profiles for Pony, SDXL photo, and flat vector;
 - make fallback cleanup use the shared field-label inventory.
 
 ### Naturalizer Path