fix: 完善商品—模特库-视频项目-自由创作等删除先进垃圾桶及可恢复等流程

core/backend/apps/ai/free_video.py

@@ -682,7 +682,7 @@ def finalize_free_video(*, task: AITask) -> AITask:
         return locked
 
 
-def serialize_free_video_task(task: AITask) -> dict:
+def serialize_free_video_task(task: AITask, *, include_deleted_assets: bool = False) -> dict:
     """任务 → 前端契约。视频/封面直链从 generated_assets 取(TOS 公读),转存失败回落火山临时 URL。"""
     payload = task.request_payload or {}
     video_url = ""
@@ -704,7 +704,7 @@ def serialize_free_video_task(task: AITask) -> dict:
 
     generated_assets = list(task.generated_assets.all())
     for asset in generated_assets:
-        if asset.is_deleted:
+        if asset.purged_at is not None or (asset.is_deleted and not include_deleted_assets):
             continue
         for f in asset.files.all():
             url = _file_url(f)