Missing database schema migration for new column 'last_inserted_at'
The SELECT query now includes the 'last_inserted_at' column from the request_response_list table, but no ALTER TABLE statement is provided in this PR to add the column. This will cause a SQL error when the cache is used with an existing database that lacks the column. A migration is needed, e.g., 'ALTER TABLE request_response_list ADD COLUMN last_inserted_at INTEGER NOT NULL DEFAULT 0'.