Use route-owned formatter style choices

krea_format_route.py

@@ -11,6 +11,19 @@ except ImportError:  # pragma: no cover - plain-script smoke tests
     import formatter_target as target_policy
 
 
+STYLE_MODES = ("preserve", "photographic", "minimal")
+DEFAULT_STYLE_MODE = "preserve"
+
+
+def style_mode_choices() -> list[str]:
+    return list(STYLE_MODES)
+
+
+def normalize_style_mode(value: Any) -> str:
+    mode = str(value or "").strip().lower().replace("-", "_").replace(" ", "_")
+    return mode if mode in STYLE_MODES else DEFAULT_STYLE_MODE
+
+
 @dataclass(frozen=True)
 class KreaFormatRequest:
     source_text: str
@@ -51,7 +64,7 @@ class KreaFormatDependencies:
 
 def format_krea2_prompt_result(request: KreaFormatRequest, deps: KreaFormatDependencies) -> KreaFormatRoute:
     detail_level = detail_policy.normalize_detail_level(request.detail_level)
-    style_mode = request.style_mode if request.style_mode in ("preserve", "photographic", "minimal") else "preserve"
+    style_mode = normalize_style_mode(request.style_mode)
     target = target_policy.normalize_target(request.target)
     row, method = deps.row_from_inputs(request.source_text, request.metadata_json, request.input_hint)