Share fallback field-label cleanup

docs/prompt-architecture-improvement-plan.md

@@ -75,6 +75,8 @@ routes:
 - `Avoid:` positive/negative splitting for fallback text;
 - the shared prompt field-label inventory and extraction such as `Setting:`,
   `Sexual scene:`, `Camera control:`, or `Composition:`;
+- fallback field-label stripping for tag/text routes that need label-free body
+  text;
 - row-value fallback from metadata fields to labeled prompt text.
 
 It must not make formatter-style decisions. Krea prose, SDXL tags, and training
@@ -291,10 +293,11 @@ Keep here:
 - 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`.
+- fallback field-label cleanup delegates to `formatter_input.py`.
 
 Improve later:
-
-- make fallback cleanup use the shared field-label inventory.
+- add route-level fixtures for any new SDXL model profile that needs different
+  tag ordering.
 
 ### Naturalizer Path