Extract Krea cast and hardcore cleanup helpers

docs/prompt-architecture-improvement-plan.md

@@ -61,6 +61,15 @@ route-specific owner. It also preserves ordinary words such as `composition`
 inside normal sentences; empty field-label cleanup is limited to standalone
 labels.
 
+Shared hardcore phrase cleanup now has one home:
+
+- `hardcore_text_cleanup.py`
+
+It owns environment-anchor normalization used by both prompt generation and
+Krea formatting, including malformed surface joins and bed/sheet/couch anchors
+that should become model-neutral body-support language. It must stay
+route-neutral: no Krea prose, no SDXL tags, and no category selection logic.
+
 Current integration points:
 
 - `prompt_builder.build_prompt`
@@ -95,8 +104,9 @@ Already isolated:
 - camera-scene prose and coworking composition adaptation live in
   `scene_camera_adapters.py`; `prompt_builder.py` still owns camera config
   parsing and row mutation.
-- shared hardcore environment-anchor cleanup normalizes malformed pool joins
-  such as `on against a wall` before metadata reaches formatter routes.
+- shared hardcore environment-anchor cleanup lives in
+  `hardcore_text_cleanup.py` and normalizes malformed pool joins before metadata
+  reaches formatter routes.
 
 ### Pair / Adapter Layer
 
@@ -125,17 +135,21 @@ Owner: `krea_formatter.py`.
 Keep here:
 
 - Krea prose style;
-- cast prose;
 - hardcore action sentence rewriting;
 - POV sentence rewriting;
 - clothing naturalization;
 - camera-scene preservation;
 - fallback text parsing.
 
+Already isolated:
+
+- `krea_cast.py` owns cast descriptor parsing, cast prose, label joining, and
+  natural label replacement for formatter routes.
+
 Improve later:
 
 - split semantic blocks into modules:
-  `krea_cast.py`, `krea_actions.py`, `krea_pov.py`, `krea_clothing.py`;
+  `krea_actions.py`, `krea_pov.py`, `krea_clothing.py`;
 - add route-level smoke fixtures for representative metadata rows;
 - make `_hardcore_action_sentence` dispatch by action family instead of long
   conditional chains.
@@ -316,7 +330,8 @@ Medium-term:
 
 ## Recommended Next Passes
 
-1. Split Krea action/POV/clothing helpers into separate modules.
+1. Split Krea action/POV/clothing helpers into separate modules, using
+   `krea_cast.py` as the pattern for stable import aliases and smoke coverage.
 2. Split `__init__.py` node classes by family after behavior is covered by smoke
    checks.
 3. Add metadata fields such as `action_family` / `position_family` to reduce