feat: initialize aivideo project

backend/app/modules/assets/repository.py

@@ -0,0 +1,26 @@
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.models.entities import MediaAsset
+
+
+class AssetsRepository:
+    def __init__(self, db: Session) -> None:
+        self.db = db
+
+    def list_assets(self, user_id: int):
+        return (
+            self.db.query(MediaAsset)
+            .filter(MediaAsset.user_id == user_id, MediaAsset.status == "active")
+            .order_by(MediaAsset.id.desc())
+        )
+
+    def get_asset(self, user_id: int, asset_id: int) -> MediaAsset | None:
+        return self.db.scalar(
+            select(MediaAsset).where(
+                MediaAsset.id == asset_id,
+                MediaAsset.user_id == user_id,
+                MediaAsset.status == "active",
+            )
+        )
+