feat: import F95 screenshot galleries with AVIF support

backend/app/routers/media.py

@@ -42,7 +42,7 @@ async def legacy_file(blob_id: str, request: Request, user: Player, db: DB):
     if not BLOB_ID_RE.fullmatch(blob_id):
         raise HTTPException(404)
     visible = visible_versions_filter(user)
-    cover = await db.scalar(select(Game.id).where(Game.cover_hash == blob_id,
+    cover = await db.scalar(select(Game.id).where(or_(Game.cover_hash == blob_id, Game.gallery_hashes.any(blob_id)),
         or_(Game.created_by_id == user.id, exists().where(GameVersion.game_id == Game.id, visible))).limit(1))
     if cover is None:
         # Keep old clients functional, with exactly the same version visibility rules.