feat: 成片中心后端升级（封面生成/复核/批量下载） (#287)

feat: 成片中心后端升级（封面生成/复核/批量下载）

packages/adapters/sqlalchemy_impl/generated_video_repository.py

@@ -100,6 +100,63 @@ class SQLAlchemyGeneratedVideoRepository:
         )
         return [self._to_domain(model) for model in models]
 
+    def list_paginated(
+        self,
+        *,
+        project_id: str | None = None,
+        status: str | None = None,
+        review_status: str | None = None,
+        page: int = 1,
+        page_size: int = 20,
+    ) -> tuple[list[GeneratedVideo], int]:
+        """分页查询成片列表，支持按项目、状态、复核状态筛选。"""
+        query = self.session.query(GeneratedVideoModel)
+
+        if project_id:
+            query = query.filter(GeneratedVideoModel.project_id == project_id)
+        if status:
+            query = query.filter(GeneratedVideoModel.status == status)
+        if review_status:
+            query = query.filter(GeneratedVideoModel.review_status == review_status)
+
+        total = query.count()
+
+        models = (
+            query.order_by(GeneratedVideoModel.generated_at.desc())
+            .offset((page - 1) * page_size)
+            .limit(page_size)
+            .all()
+        )
+
+        return [self._to_domain(model) for model in models], total
+
+    def update_review_status(self, video_id: str, review_status: str) -> GeneratedVideo | None:
+        """更新成片复核状态。"""
+        model = self.session.query(GeneratedVideoModel).filter(GeneratedVideoModel.id == video_id).first()
+        if model is None:
+            return None
+        model.review_status = review_status
+        self.session.add(model)
+        self.session.commit()
+        return self._to_domain(model)
+
+    def update_thumbnail(self, video_id: str, thumbnail_url: str) -> bool:
+        """更新成片封面图URL。"""
+        model = self.session.query(GeneratedVideoModel).filter(GeneratedVideoModel.id == video_id).first()
+        if model is None:
+            return False
+        model.thumbnail_url = thumbnail_url
+        self.session.add(model)
+        self.session.commit()
+        return True
+
+    def get_by_ids(self, video_ids: list[str]) -> list[GeneratedVideo]:
+        """批量获取成片记录。"""
+        if not video_ids:
+            return []
+        models = self.session.query(GeneratedVideoModel).filter(GeneratedVideoModel.id.in_(video_ids)).all()
+        return [self._to_domain(model) for model in models]
+
     @staticmethod
     def _to_domain(model: GeneratedVideoModel) -> GeneratedVideo:
         return GeneratedVideo(