* Add a table Begin of the insertion`last_project_folders`.End of the insertion Begin of the deletion `last_project_folder`.End of the deletion Have a dedicated description for this table (why do we need it?).
* Columns: Begin of the insertionprojects\_storage\_idEnd of the insertion Begin of the deletion project\_storages\_idEnd of the deletion `int`, origin\_folder\_id `string`, mode `enum project_folders_modes`
* PK: project\_storages\_id and mode