优化故事版生成

core/backend/apps/ai/services.py

@@ -62,6 +62,23 @@ def get_default_model(capability: str) -> ModelConfig:
     return qs.filter(is_default=True).order_by("created_at").first() or qs.order_by("created_at").first()
 
 
+def get_storyboard_image_model() -> ModelConfig:
+    """故事板出图钉 YunQi gpt-image-2 多图 edits(与手工测通的 curl 同一条链路)。
+    找不到再回落默认图像模型,避免测试/未 seed 环境直接挂。"""
+    pinned = (
+        ModelConfig.objects.select_related("provider")
+        .filter(
+            capability=ModelConfig.Capability.IMAGE,
+            status=ModelConfig.Status.ACTIVE,
+            provider__status="active",
+            provider__name="yunqi",
+            name="gpt-image-2",
+        )
+        .first()
+    )
+    return pinned or get_default_model(ModelConfig.Capability.IMAGE)
+
+
 def resolve_image_model(key: str | None) -> "ModelConfig | None":
     """前端「生图模型选择」→ ModelConfig。用户显式选的可以是 disabled 模型(故不按 status 过滤)。
       · "volcano"  → 火山官方 Seedream(取最新一版)
@@ -2625,7 +2642,7 @@ def submit_storyboard(*, project, user, prompt: str = "", shot_ids: list | None
     adopted_script = project.script_versions.filter(is_adopted=True).first()
     if adopted_script is None:
         raise ValueError("script must be adopted before generating storyboard")
-    if get_default_model(ModelConfig.Capability.IMAGE) is None:
+    if get_storyboard_image_model() is None:
         raise ValueError("no active image model configured")
     if prompt:
         meta = dict(project.metadata or {})
@@ -3046,7 +3063,7 @@ def poll_storyboard(*, project, user) -> dict:
         ).values_list("request_payload__storyboard_shot", flat=True)
         if v
     }
-    model_config = get_default_model(ModelConfig.Capability.IMAGE)
+    model_config = get_storyboard_image_model()
     extra_prompt = (project.metadata or {}).get("storyboard_prompt", "") or ""
     spawnable = [s for s in active if str(s.id) not in inflight_shot_ids]
     slots = max(0, STORYBOARD_MAX_PARALLEL - len(inflight_shot_ids))