Centralize softcore pair wording

pair_output.py

@@ -4,8 +4,10 @@ from typing import Any, Callable
 
 try:
     from . import row_normalization as row_policy
+    from . import softcore_text_policy
 except ImportError:  # Allows local smoke tests with `python tools/prompt_smoke.py`.
     import row_normalization as row_policy
+    import softcore_text_policy
 
 
 def _labeled_expression_sentence(label: str, expression: Any) -> str:
@@ -84,7 +86,7 @@ def assemble_insta_pair_metadata(
         f"{_labeled_expression_sentence('Facial expression', soft_row.get('expression'))}"
         f"Composition: {soft_row['composition']}. "
         f"{soft_camera_sentence}"
-        "Keep the softcore version seductive, creator-shot, and styled as a soft teaser. "
+        f"{softcore_text_policy.softcore_style_directive()} "
         f"{soft_row['positive_suffix']}."
     )
     hard_prompt = (