Extract cast context policy

tools/prompt_smoke.py

@@ -26,6 +26,7 @@ if str(ROOT) not in sys.path:
 
 import caption_naturalizer  # noqa: E402
 import caption_policy  # noqa: E402
+import cast_context  # noqa: E402
 import category_template_metadata  # noqa: E402
 import character_config  # noqa: E402
 import character_profile  # noqa: E402
@@ -658,6 +659,29 @@ def smoke_category_cast_config_policy() -> None:
     _expect(pb.CAST_PRESETS is category_cast_config.CAST_PRESETS, "Prompt builder cast presets are not delegated")
     _expect("hardcore_pose" in category_cast_config.category_preset_choices(), "Category preset choices lost hardcore_pose")
     _expect("custom_counts" in category_cast_config.cast_preset_choices(), "Cast preset choices lost custom_counts")
+    _expect(
+        pb._count_phrase(2, "adult woman", "adult women") == cast_context.count_phrase(2, "adult woman", "adult women"),
+        "Prompt builder count phrase should delegate to cast_context",
+    )
+    configured = cast_context.configured_cast_context(1, 2)
+    _expect(configured.get("subject_phrase") == "one adult woman and two adult men", "Configured cast subject phrase changed")
+    _expect(configured.get("cast_summary") == "1 woman, 2 men, 3 total adults", "Configured cast summary changed")
+    _expect(configured.get("scene_kind") == "adult threesome sex scene", "Configured cast scene kind changed")
+    _expect(
+        pb._configured_cast_context(1, 2) == configured,
+        "Prompt builder configured cast context should delegate to cast_context",
+    )
+    _expect(
+        cast_context.couple_type_from_counts(
+            random.Random(1),
+            2,
+            0,
+            choose=lambda _rng, pool: pool[0],
+            couple_types=[("woman and man", "a woman and a man", "fallback pose")],
+        )
+        == ("two women", "two women", "close affectionate couple pose", 2, 0),
+        "Couple type count override for two women changed",
+    )
 
     category_config = json.loads(pb.build_category_config_json("hardcore_pose", "Foreplay and teasing"))
     _expect(category_config.get("category") == "Hardcore sexual poses", "Category config lost hardcore category mapping")