fix new library set up

backend/src/main/java/com/storycove/service/LibraryService.java

@@ -664,6 +664,7 @@ public class LibraryService implements ApplicationContextAware {
                 word_count integer,
                 created_at timestamp(6) not null,
                 last_read_at timestamp(6),
+                last_completed_at timestamp(6),
                 updated_at timestamp(6) not null,
                 author_id uuid,
                 id uuid not null,