This commit introduces two new actions, `batch_global_analysis` and `batch_global_simulate`, to handle batch processing for solo events in the bib management system. The PHP file `ajax_bib_range.php` is updated to include logic for analyzing and simulating batch assignments, enhancing user feedback with detailed statistics. Additionally, new CSS styles are added to improve the presentation of the global batch interface, and JavaScript functions are implemented to facilitate the collection and submission of batch plans. These changes aim to streamline the batch processing workflow and improve user experience in managing solo event assignments.