}

    /**
     * Rebuilds selected configuration indices with the latest mappings.
     * Executes asynchronously in a background thread.
     *
     * @param form the action form containing the target index checkboxes and loadBulkData flag
     * @return HTML response redirecting to the maintenance page
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse reindexConfigIndices(final ActionForm form) {