remove sqlite ?

src/eval_server.py

@@ -378,8 +378,8 @@ def app_main(args) -> None:
                 conn.execute(
                     """
                     UPDATE assignments
-                    SET status = 'in_progress', started_at = ?, lease_until = ?
-                    WHERE round_id = ? AND item_id = ? AND user_id = ?
+                    SET status = 'in_progress', started_at = %s, lease_until = %s
+                    WHERE round_id = %s AND item_id = %s AND user_id = %s
                     """,
                     (now_dt.isoformat(), lease_until, args.round_id, item_id, user_id),
                 )