82155cab8d
Add detailed documentation for recurring tasks, including a user guide explaining how to set up and manage recurring tasks, and a technical guide for the recurring tasks cron job. The user guide covers the purpose, setup process, and schedule options, while the technical guide explains the cron job's logic, database interactions, and configuration options. Additionally, include a migration script to fix ENUM type and casting issues for progress_mode_type.
Migrations should be executed out in the sequence specified by the filename. They should be removed once the migrations have been released to all databases.