def delete_conversation(self, session_id: str) -> bool:
        """Delete all conversations for a given session.

        :param str session_id: Unique session ID.
        :return: True if conversations were deleted, False otherwise.
        """
        self.cursor.execute(
            "DELETE FROM conversations WHERE session_id = ?", (session_id,)
        )
        self.conn.commit()
        return self.cursor.rowcount > 0
Delete all conversations for a given session.

        :param str session_id: Unique session ID.
        :return: True if conversations were deleted, False otherwise.
        
backend/director/db/sqlite/db.py