In #20135 we prevented invalid inputs from being accepted in category setting form fields on the front-end. We didn't do anything on the back-end at that time, because we were still discussing which path we wanted to take. Eventually we decided we want to move this to a new CategorySetting model.
This PR moves the num_auto_bump_daily from custom fields to the new CategorySetting model.
In addition it sets the default value to 0, which exhibits the same behaviour as when the value is NULL.
Currently the auto-bump cooldown is hard-coded to 24 hours.
This change makes the highlighted 24 hours part configurable (defaulting to 24 hours), and the rest of the process remains the same.
This uses the new CategorySetting model associated with Category. We decided to add this because we want to move away from custom fields due to the lack of type casting and validations, but we want to keep the loading of these optional as they are not needed for almost all of the flows.
Category settings will be back-filled to all categories as part of this change, and creating a new category will now also create a category setting.
This is the first in a multi-part change to move the custom fields to a new table. It includes:
- Adding a new CategorySetting model and corresponding table.
- Populating it with data from the category_custom_fields table.
