Centralize formatter target policy

sdxl_format_route.py

@@ -3,6 +3,11 @@ from __future__ import annotations
 from dataclasses import dataclass
 from typing import Any, Callable
 
+try:
+    from . import formatter_target as target_policy
+except ImportError:  # pragma: no cover - plain-script smoke tests
+    import formatter_target as target_policy
+
 
 @dataclass(frozen=True)
 class SDXLFormatRequest:
@@ -56,11 +61,12 @@ def format_sdxl_prompt_result(request: SDXLFormatRequest, deps: SDXLFormatDepend
         request.style_preset,
         request.quality_preset,
     )
-    target = request.target if request.target in ("auto", "single", "softcore", "hardcore") else "auto"
+    target = target_policy.normalize_target(request.target)
     nude_weight = max(0.1, min(3.0, float(request.nude_weight)))
     row, method = deps.row_from_inputs(request.source_text, request.metadata_json, request.input_hint)
 
     if row and row.get("mode") == "Insta/OF":
+        pair_target = target_policy.pair_policy(target)
         soft_row = row.get("softcore_row") if isinstance(row.get("softcore_row"), dict) else {}
         hard_row = row.get("hardcore_row") if isinstance(row.get("hardcore_row"), dict) else {}
         soft_body = deps.soft_tags(soft_row, row, nude_weight)
@@ -85,9 +91,11 @@ def format_sdxl_prompt_result(request: SDXLFormatRequest, deps: SDXLFormatDepend
             request.custom_quality,
             request.extra_positive,
         )
-        selected = hard_prompt if target == "hardcore" else soft_prompt
+        selected = hard_prompt if pair_target.selected_side == "hardcore" else soft_prompt
         selected_negative = (
-            row.get("hardcore_negative_prompt") if target == "hardcore" else row.get("softcore_negative_prompt")
+            row.get("hardcore_negative_prompt")
+            if pair_target.selected_side == "hardcore"
+            else row.get("softcore_negative_prompt")
         )
         output = {
             "sdxl_prompt": selected,